• After clone correction within each country, 99 isolates were analyzed for measures of population diversity, variation at single SSR loci, and for genetic differentiation of virulence phenotypes and SSR genotypes. (apsnet.org)
  • We've realised the mice, particularly at [Wilsons Promontory] have really low genetic diversity,' Ms Burns said. (abc.net.au)
  • necessitates knowledge regarding its genetic diversity. (springer.com)
  • Gene diversity, Shannon's information index, and Nei's coefficient of differentiation were calculated suggesting a moderate genetic variation at the species level. (springer.com)
  • This shuffling and recombination of genetic information contribute to the genetic diversity observed in offspring. (realdetroitweekly.com)
  • Genetic diversity plays a vital role in evolution by promoting adaptability within a population. (realdetroitweekly.com)
  • Genetic diversity acts as a buffer against environmental challenges and diseases. (realdetroitweekly.com)
  • In the face of environmental changes or the emergence of new pathogens, populations with high genetic diversity are more likely to have individuals with genetic traits that provide resistance or tolerance. (realdetroitweekly.com)
  • This diversity allows the species as a whole to better withstand and recover from adverse conditions. (realdetroitweekly.com)
  • Genetic diversity provides the raw material for natural selection to operate. (realdetroitweekly.com)
  • Just as evolutionary biologists predicted, Florida panthers experienced a reduction in genetic diversity and an increase in homozygosity. (earth.com)
  • Given the need for comparative studies of functional genetic diversity, we investigated whether MHC diversity differs between populations which are open, that is experiencing gene flow, versus populations which are closed, that is isolated from other populations. (datadryad.org)
  • For all animals, we assessed MHC-DRB diversity and, across populations, we compared the number of unique MHC-DRB alleles and their distributions. (datadryad.org)
  • Despite management efforts to maintain or increase genetic diversity in the DLC population, MHC diversity remained static from 1980 to 2010. (datadryad.org)
  • Therefore, loss of genetic diversity in lemurs, owing to small founder populations or reduced gene flow, can be mitigated by managed breeding efforts. (datadryad.org)
  • Quantifying MHC diversity within individuals and between populations is the necessary first step to identifying potential improvements to captive management and conservation plans. (datadryad.org)
  • One important aspect when examining the conservation of bee diversity is recognising the diversity that exists within species. (plymouth.ac.uk)
  • Having this diversity is important as it enables species to adapt and survive in changing environments. (plymouth.ac.uk)
  • On the other hand, hybridisation itself can increase genetic diversity, although the way that it is 'structured' and distributed amongst natural varieties is altered. (plymouth.ac.uk)
  • She uses genetic and genomic methods to investigate connectivity and to identify adaptive genetic diversity, both of which are important for ensuring persistence of species of conservation concern. (usgs.gov)
  • Her work also explores how to optimally manage the genetic diversity within a species (for example, through translocations) and how to best inventory what species are present and the state of species well-being, persistence, or risk (that is, population size, levels of genetic diversity). (usgs.gov)
  • Plant Population, Community Ecology, Coexistence & Patterns of Diversity, Climate Change Impacts on Plant Populations and Communities, and Plant-Animal Interaction. (usu.edu)
  • Consequently, a smaller number of animals get selected which can lead to a reduction in genetic diversity in a population. (icbf.com)
  • Genetic Diversity is defined as the variation in the amount of genetic information within and among individuals of a population, a species or a breed. (icbf.com)
  • It is very important to maintain genetic diversity for the future survival of the breed. (icbf.com)
  • Genetic diversity of represents the evolutionary history of species and the essential evolutionary potential to respond to changing environments especially for endangered species. (nii.ac.jp)
  • Wolf eradication in the US has had a far more devastating impact on the genetic diversity of remaining populations than previously thought, a new study reveals. (newscientist.com)
  • Conservationists therefore assumed that the Canadian population had the same level of genetic diversity that had existed in the 19th century - prior to the mass slaughter - and that small-scale re-introductions of these wolves into the US would lead to diversity on a par with this earlier period. (newscientist.com)
  • But these assumptions were wrong, according to researchers from the University of Uppsala, Sweden, and the University of California Los Angeles, US, who looked at the genetic diversity of the original wolf populations using DNA analysis. (newscientist.com)
  • They used bone samples taken from grey wolves dating from 1856 - held in the National Museum for Natural History in Washington DC - and compared this genetic diversity with that of modern wolves. (newscientist.com)
  • It is impossible for the wolf populations to recover this important diversity, which enables them to adapt to different environmental challenges. (newscientist.com)
  • It was hoped that choosing wolves from across the continent would produce a population with high genetic diversity. (newscientist.com)
  • The species now exists in such isolated pockets that it is impossible for them to breed across the gaps, so genetic diversity will continue to fall," Vila told New Scientist . (newscientist.com)
  • The wolves' future could go either way - it's possible that disease could devastate the population, but it's also possible that the loss of genetic diversity won't affect them. (newscientist.com)
  • It was discovered recently that the genetic diversity of wild cheetahs is incredibly uniform compared to other species, but it doesn't appear to have affected cub survival or the species as a whole. (newscientist.com)
  • Genetic structure of Parnassius mnemosyne (Lepidoptera: Papilionidae) populations in the Carpathian Basin , ORGANISMS DIVERSITY & EVOLUTION 16: (4) pp. 809-819. (doktori.hu)
  • There is though the pattern of greater African genetic diversity. (discovermagazine.com)
  • The most plausible explanation would naturally be the one outlined above in the 2009 documentary: non-Africans are the descendants by and large of a small number of Africans who left ~100,000 years B.P. They went through a population bottleneck which reduced genetic diversity sharply. (discovermagazine.com)
  • With respect to the reduced genetic diversity, one idea is that it is the result of genetic drift following a bottleneck in a small African population. (discovermagazine.com)
  • The conventional wisdom linking high genetic diversity with population viability is increasingly scrutinized, as empirical evidence shows that some species can persist despite low genetic diversity. (lu.se)
  • author = {{Cronberg, Nils}}, issn = {{1615-6110}}, keywords = {{Bryophyta - Sphagnum rubellum - S. capillifolium - Isozymes - allozymes - genetic distance - genetic diversity - clonal diversity - breeding system - hybridization - gene flow - postglacial migration}}, language = {{eng}}, number = {{3-4}}, pages = {{139--158}}, publisher = {{Springer}}, series = {{Plant Systematics and Evolution}}, title = {{Population structure and interspecific differentiation of peat moss sister species Sphagnum capillifolium and S. rubellum in northern Europe. (lu.se)
  • We studied the associations between the stem quality, phenology, and genetic structure by genotyping the phenotypic variation at 15 genomic SSR makers of 208 mature European beech trees in four artificially established stands in Lithuania. (mdpi.com)
  • As a population geneticists, our major goal is to understand what evolutionary mechanisms lead to genetic and phenotypic variation that we observe in these different scales. (helsinki.fi)
  • Overall, the program will be able to reveal the molecular genetic architecture behind phenotypic variation. (europa.eu)
  • In genetics, a molecular marker (identified as genetic marker) is a fragment of DNA that is associated with a certain location within the genome. (wikipedia.org)
  • Scalloped hammerheads can be grouped into six distinct populations distinguished by genetics, geography, and behavior. (friendsofanimals.org)
  • This marker set will be applicable for evaluating the genetic structure for association mapping, DNA fingerprinting, and mounting linkage maps and will be a practical tool set for further genetics. (springer.com)
  • Genetics refers to the study of genes and heredity, while inheritance refers to the process by which genetic information is transferred from parents to offspring. (realdetroitweekly.com)
  • Genetics and inheritance play a vital role in understanding the occurrence of genetic disorders and diseases. (realdetroitweekly.com)
  • Additionally, studying genetics allows scientists to explore the inheritance patterns of traits and the mechanisms behind genetic diseases. (realdetroitweekly.com)
  • While in China, especially the Qinghai-Tibet Plateau (QTP) and adjacent regions, considerable research achievements have also been attained on inferring the Quaternary phylogeographic histories of plant species based on the approach of population genetics (e.g. (frontiersin.org)
  • Landscape genetics can be described as a combination of landscape ecology and population genetics. (epfl.ch)
  • Landscape genetics facilitates the understanding of how geographical and environmental features structure genetic variation at both the population and the individual levels. (epfl.ch)
  • The landscape genetics' group at LASIG is specialized in the contribution of Geographic Information Science for the conservation of plant and animal genetic resources. (epfl.ch)
  • We apply spatial analysis, spatial statistics, spatial modelling, and geocomputation methods to conservation and landscape genetics, with core research activities landscape and seascape genomics , a field that aims to study and discover the genetic basis of adaptation by processing many simultaneous DNA-environment association models. (epfl.ch)
  • Contrasting genetic structure in cuckoo and predatory Maculinea butterflies , CONSERVATION GENETICS 16: pp. 939-954. (doktori.hu)
  • I am a Scientist at WSL, specialising in conservation biology, population genetics / genomics, and bioinformatics. (wsl.ch)
  • I also have extensive experience working on the genetics of reintroduced populations and captive breeding programs. (wsl.ch)
  • I am a memeber of the IUCN SSC Conservation Genetics Specialist Group, GeoBON "Genetic composition working group, and the USGS Powell Centre Macrogenetics Working Group. (wsl.ch)
  • The question of how and why genetic variation arises and is maintained over long periods of time is of key importance to evolutionary biology, population genetics and conservation biology. (lu.se)
  • Profile: We are seeking a student with a strong background in bioinformatics, coupled with a keen interest and a solid understanding of population genetics and evolutionary genomics. (lu.se)
  • Isolates from Central Asia and the Caucasus were also compared with 16 P. triticina isolates collected from common wheat in North America that were representative of the virulence and molecular variation in this region and two isolates collected from durum wheat in France and the United States. (apsnet.org)
  • We study evolutionary biology with an emphasis on species endemic to tropical biomes and W North America. (researchgate.net)
  • The genus Aphelocoma comprises four currently recognized species including many locally adapted populations across Mesoamerica and North America. (researchgate.net)
  • Greater sage-grouse Centrocercus urophasianus populations in western North America are monitored using counts of males at leks in spring. (usgs.gov)
  • Although wolves were systematically eradicated across North America over the last couple of centuries, it had been thought that the human impact on the Canadian wolf population - which is currently a relatively healthy 70,000 - was minor. (newscientist.com)
  • And if the Canadian wolves - with such a large population remaining - have lost so much genetic variation, what is the situation for other endangered species in North America, such as bears or mountain lions? (newscientist.com)
  • Maps can be created to determine distances between genes and differentiation between species. (wikipedia.org)
  • The whole human family is one species with the same genes. (utah.edu)
  • Mutation creates variations in protein-coding portions of genes that can affect the protein itself. (utah.edu)
  • Some genes may even "drift out" of a population (i.e., just by chance, some gene may reach a frequency of zero). (berkeley.edu)
  • All of the genes in a population. (berkeley.edu)
  • also called allele frequency) Proportion of genes/alleles in a population that are of a particular type. (berkeley.edu)
  • The movement of genes between populations. (berkeley.edu)
  • The other main issue is that a border wall interferes with the natural exchange of genes within a population. (earth.com)
  • It is now known that bacteria exchange genes over far greater evolutionary distances than is the case for multicellular organisms, and can acquire through recombination (see above) genetic information from organisms which would not normally be considered to be the same species. (imperial.ac.uk)
  • As breeders usually check pedigrees when planning matings, genomic inbreeding can provide a further insight into the genetic make-up of the animals, as while there may be an overlap in the pedigree of two animals, the reality may be that these animals have no genes in common. (icbf.com)
  • This research program will combine studies of candidate genes with large-scale gene expression analysis, several mapping approaches and comparative genomics to study the genetic basis of trait evolution in wild bird populations. (europa.eu)
  • Combinations of variations in the HLA-DQA1 gene and other HLA genes affect the risk of type 1 diabetes. (medlineplus.gov)
  • Type 1 diabetes risk is most increased by two HLA haplotypes involving variations of the HLA-DQA1 and HLA-DQB1 genes and another HLA gene called HLA-DRB1 . (medlineplus.gov)
  • Variations in other genes and environmental factors are also thought to affect the risk of this complex disorder. (medlineplus.gov)
  • Leigh DM , Hendry A, Vazquez-Domínguez E, Friesen V (2019) Estimated six percent loss of genetic variation in wild populations since the industrial revolution. (wsl.ch)
  • They can identify small changes within the mapping population enabling distinction between a mapping species, allowing for segregation of traits and identity. (wikipedia.org)
  • Genetic markers can aid in the development of new novel traits that can be put into mass production. (wikipedia.org)
  • An identifiable marker may help follow particular traits of interest when crossing between different genus or species, with the hopes of transferring particular traits to offspring. (wikipedia.org)
  • Both processes require genetic variation in adaptive traits within populations. (harvard.edu)
  • It is important to approach this topic with sensitivity and an understanding of how genetic traits are passed down through generations. (realdetroitweekly.com)
  • When individuals have different genetic variations, they possess a wider range of traits and characteristics. (realdetroitweekly.com)
  • In a genetically diverse population, there is a greater likelihood of individuals possessing traits that confer a selective advantage. (realdetroitweekly.com)
  • Over time, these advantageous traits become more prevalent in the population through natural selection. (realdetroitweekly.com)
  • Inbreeding depression is often measured in fitness-related traits of life history (e.g. fecundity, survival, morphological measurements) and often only in captive populations ( Hedrick and Kalinowski 2000 ). (biorxiv.org)
  • Genetic Architecture of Ecologically Important Traits, Determinants of Genetic Variation & Molecular Evolution in Natural Populations, and the Nature & Evolution of Species Boundaries & Barriers to gene flow. (usu.edu)
  • Heritable genetic variation for fitness traits is a paradox finding, given our understanding of directional selection processes on such traits. (unil.ch)
  • I explored differential selection on male and female fitness traits in red deer and found sexually antagonistic genetic variation for fitness in this species. (unil.ch)
  • Some researchers have long claimed a more complex model than Out of Africa, but as long we relied in inferences from extant populations theses result were ignored or dismissed (notably, ancient DNA extraction is also unsettling our understanding of the very recent human past). (discovermagazine.com)
  • Without mutation there would be no variation, and without variation there would be no evolution. (utah.edu)
  • Genetic Resources and Crop Evolution, 48 , 369-380. (springer.com)
  • For a more detailed explanation, see our resource on genetic drift in Evolution 101 . (berkeley.edu)
  • While evolution on its own might not be enough to keep pace with climate change for a lot of the species we've studied so far, it can buy us more time. (nationalgeographic.com)
  • Because genetic variation is this raw material for evolution, it is important to conserve it and species that are more genetically variable have a greater probability of long-term survival. (plymouth.ac.uk)
  • In the finest resolution, evolution can be described as a change of allele frequencies from generation to generation, leading to differences among individuals, populations and species. (helsinki.fi)
  • In the new study published in Nature Ecology and Evolution , a research team mapped the extensive and striking colour variation among the females of the bluetail damselfly ( Ischnura elegans ). (lu.se)
  • For students in ecology and evolution who want to learn the basics of molecular techniques to study wild species of animals, plants, fungi, bacteria, etc. (lu.se)
  • Genetic differentiation among the Maculinea species (Lepidoptera: Lycaenidae) in eastern Central Europe , BIOLOGICAL JOURNAL OF THE LINNEAN SOCIETY 91: (1) pp. 11-21. (doktori.hu)
  • capillifolium were dominated by few genotypes, and differentiation among populations was pronounced, indicating a low level of sexual recombination. (lu.se)
  • Loosely, a measure of the genetic differences there are within populations or species. (berkeley.edu)
  • We investigated the genetic variation, molecular phylogenetics, and differences between samples from Turkey and Georgia using four mitochondrial and one genomic DNA markers. (tubitak.gov.tr)
  • Two other assays were performed with freshwater crustaceans, T. platyurus and D. magna, underlining no significant differences with controls with both species. (easychair.org)
  • There is an immediate need to increase our understanding of the genetic basis for fitness differences in natural populations (Ellegren and Sheldon Nature 452:169-175, 2008). (europa.eu)
  • Epigenome-wide association studies (EWAS) of environmental exposures are commonly restricted to single populations with small sample sizes, and comparison across EWAS has been limited by methodological differences. (clu-in.org)
  • COPENHAGEN - People with precancerous colonic lesions show significant differences in their gut microbiome compared to the general population up to 5 years before the lesions develop, according to a large, 22-year analysis from the Dutch Microbiome Project cohort study. (medscape.com)
  • Among the 6 species, Q serrata and Q dentata were genetically less variable than the others. (afs-journal.org)
  • This means that bacteria, rather than simply dividing into two daughter cells, each of which are genetically identical, on occasion acquire genetic material from other, more distantly related strains. (imperial.ac.uk)
  • Dienekes observes that a recent paper reports that some Indian populations may be more diverse genetically than HapMap Africans. (discovermagazine.com)
  • In this damselfly species, there are three genetically determined colour forms in the females, one of which makes them look like males. (lu.se)
  • We apply phylogenetic, population genetic and genomic approaches, working with datasets overlaid with analyses of acoustic and trait variation to examine spatial and temporal patterns of diversification. (researchgate.net)
  • genome-scale analyses of population structure and differentiation in the recent radiation of crossbills, and 3. (unr.edu)
  • population genomic analyses of hybridization between introduced and native fishes. (unr.edu)
  • Our genetic analyses of these two species yielded contrasting results: a spatial analysis of molecular variance (SAMOVA) and F ST between each pair of populations revealed a locally fragmented genetic structure for Y. multistriata , compared to three distinct geographic groups of Y. argus within which range-wide gene flow occurs. (bioone.org)
  • Comparative translatome analyses of rice, tomato, and Arabidopsis cell populations suggest increased expression conservation of root meristems compared with other homologous populations. (bvsalud.org)
  • Data for this research includes hundreds of re-sequenced genomes from three endangered species, complemented by chromosome-level assemblies, offering a robust foundation for comprehensive genomic analyses. (lu.se)
  • We then continue with analyses of variation within species for genetic identification of individuals, parents, populations and analyses inferring the evolutionary history of species (phylogeography). (lu.se)
  • Using the endangered ring-tailed lemur (Lemur catta) as a model, we compared two populations under long-term study: a relatively "open," wild population (n = 180) derived from Bezà Mahafaly Special Reserve, Madagascar (2003-2013) and a "closed," captive population (n = 121) derived from the Duke Lemur Center (DLC, 1980-2013) and from the Indianapolis and Cincinnati Zoos (2012). (datadryad.org)
  • Wild individuals possessed more MHC-DRB alleles than did captive individuals, and overall, the wild population had more unique MHC-DRB alleles that were more evenly distributed than did the captive population. (datadryad.org)
  • The first column describes the population from which each individual originated, either the wild population located at Beza Mahafaly Special Reserve, Madagascar, or the captive population, including animals from the Cincinnati Zoo, the Indianapolis Zoo, and the Duke Lemur Center. (datadryad.org)
  • In the course of captive rearing to investigate the larval development of the species, I observed an unusual partial loss of pigmentation in two individuals from two widely separated locations. (bioone.org)
  • The ecological and climatic conditions suitable for these relict species have not been identified. (nature.com)
  • We further use Ecological Niche Modeling to show that these patterns align with maps of climate refugia, and we predict species' chances of persistence given the future climatic changes expected for East Asia. (nature.com)
  • Ecological Niche Modeling (ENM) is widely used to predict species distributions and has been applied to identify climate refugia 14 . (nature.com)
  • LEAFY ) from 19 natural populations of R. chinensis as well as the ecological niche modeling. (frontiersin.org)
  • Then the ecological species concept says it's a low elevation site. (andersonuniversity.edu)
  • Topics ranges from understanding ecological and evolutionary causes and consequences of genetic variation in parasite population. (lu.se)
  • Abstract: Effective interpretation of genome function and genetic variation requires a shift from epigenetic mapping of cis-regulatory elements (CREs) to characterization of endogenous function. (harvard.edu)
  • He co-authored the landmark paper documenting the first genome sequence of a Daphnia species - as well as the second, new and improved genome sequence of Daphnia pulex ( D. pulex ) published earlier this year. (nd.edu)
  • Strikingly, the effective population carried a significantly lower level of genome-wide inbreeding coefficients and autozygosity with shorter decays for linkage disequilibrium relative to the non-breeding population. (biorxiv.org)
  • A milestone of this program will be genome sequencing of the two flycatcher species. (europa.eu)
  • Second, we will track the genetic basis of behaviour using a unique breeding population of zebra finches and benefitting from the recently obtained genome sequence of this species. (europa.eu)
  • Mark Hahn, Ph.D., Senior Scientist at Woods Hole Oceanographic Institution and researcher with the Boston University SRP Center, and Adam Labadorf, Ph.D., Assistant Professor at Boston University, will describe the integration of diverse genome-scale data sets to obtain a better understanding of how genetic variation influences sensitivity and resistance to hazardous chemicals. (clu-in.org)
  • It should first be assessed what the genetic variability is within the organism being studied. (wikipedia.org)
  • Variations that help an organism survive and reproduce are passed on to the next generation. (utah.edu)
  • All the genetic information an organism carries. (berkeley.edu)
  • This process of natural selection can lead to significant changes in the appearance, behavior, or physiology of individuals in a population, in just a few generations. (utah.edu)
  • Current work in the lab involves on the generation of population genomic data sets to analyze fine scale patterns of genetic variation in natural populations and to understand the genetic architectures of adaptation, speciation, and hybridization. (unr.edu)
  • First, the wall will divide up natural habitats which can result in a bottleneck population - a sharp decline in the numbers of a species. (earth.com)
  • This note describes a previously unreported instar-specific, partial loss of pigmentation discovered during a larger study of the natural history of this species. (bioone.org)
  • Many conservation biologists believe the best way to manage and 'future-proof' natural populations is to maintain the natural population structuring that occurs. (plymouth.ac.uk)
  • The impact of natural selection, or demographic process such as rapid population growth and bottlenecks, can be inferred from examining the distribution of genetic variation within a species. (imperial.ac.uk)
  • Secondly, I started to use quantitative genetic methods to study mechanisms that may maintain genetic variation in natural populations. (unil.ch)
  • We work on forest tree population genomics, tackling problems relating to local adaptation, inference of population history using genetic data, effects of domestication and breeding and identifying genetic footprint of natural selection. (helsinki.fi)
  • Study of the level and structure of genetic and morphometric variation in natural populations of endangered insect species. (doktori.hu)
  • Our study clarifies when, how and why this variation arose, and shows that this variation has been maintained over long evolutionary time periods through so-called balanced natural selection", says Erik Svensson, biology professor at Lund University. (lu.se)
  • The A and B clones of Borrelia burgdorferi sensu stric- maintenance of these clonal complexes in natural bacterial to, distinguished by outer surface protein C ( ospC ) gene populations ( 3 , 4 ). (cdc.gov)
  • Ixodes ricinus ticks ( 11 ) and is carried by a large variety of ize genetic variations of natural populations of a bacterial hosts, including birds and small- to medium-sized mam- pathogen ( 1 , 2 ). (cdc.gov)
  • Many insect species are undergoing rapid population decline in recent decades due to anthropogenic changes to natural landscapes and climate. (lu.se)
  • The third and final session will feature SRP-funded researchers collaborating to combine omics (e.g., genomics, proteomics) data within and across model organisms as well as studies in human populations. (clu-in.org)
  • It posits very deep roots in a given region for distinct human populations. (discovermagazine.com)
  • Here, we map the abundance and distribution patterns of relict species, showing high abundance in the humid subtropical/warm-temperate forest regions. (nature.com)
  • Skin color inheritance follows patterns of dominance and recessiveness, so for a black baby to be born to two white parents, both parents would need to carry and pass on the specific genetic variations associated with darker skin. (realdetroitweekly.com)
  • Therefore, more phylogeographic studies of additional plant species within the warm temperate refugial regions are necessary in order to detect their spatial geographic patterns and to assess the underlying causes. (frontiersin.org)
  • Some species can change their behavior when faced with hotter temperatures-though even that has consequences. (nationalgeographic.com)
  • Research in my lab investigates the evolutionary consequences of species interactions and the genetic signatures of adaptive divergence, hybridization, and speciation. (unr.edu)
  • Small and/or artificially reduced populations can suffer genetic erosion with long-term consequences to population fitness and persistence. (usgs.gov)
  • We utilized genomic and pedigree data for Yellowstone National Park gray wolves to investigate the contributions of foundation stock lineages, genetic architecture of the effective population, and putative fitness consequences of inbreeding. (biorxiv.org)
  • Following the introduction of widespread vaccination against S. pneumoniae in the US, I have been working with scientists based at Harvard and Boston University to track the consequences for the pneumococcal population. (imperial.ac.uk)
  • The great colour variation in insects fascinates the general public, and raises questions about the function of colour signals and its evolutionary consequences for partner choice and conflicts between the sexes", says Erik Svensson. (lu.se)
  • In this study, we developed microsatellite markers for nine endangered amphibian species endemic to Ryukyu Islands in Japan. (nii.ac.jp)
  • Because of the absence of an animal vector, communities had to reach a critical population (estimated at 200,000 around 3000 BCE) before endemic smallpox could be established. (medscape.com)
  • Abstract - Allozyme variation at 6 loci was studied in 28 populations of the 6 oak species native to Korea: Quercus acutissima Carruth, Q aliena BI, Q dentata Thunb, Q mongolica Fisch, Q serrata Thunb, and Q variabilis BI. (afs-journal.org)
  • Three loci could be used as markers for distinguishing Q acutissima and Q variabilis from the other 4 species. (afs-journal.org)
  • La variabilité allozymique a été étudiée dans 28 populations appartenant à 6 espèces de chênes indigènes de Corée à partir de données issues de 6 loci : Quercus acutissima Carruth, Q aliena BI, Q dentata Thunb, Q mongolica Fisch, Q serrata Thunb et Q variabilis BI. (afs-journal.org)
  • First, we will search for and analyse loci involved with reproductive isolation and adaptive population divergence in a well-known system for speciation research the pied flycatcher and the collared flycatcher. (europa.eu)
  • The genetic homogeneity of ospC -A isolates was confi rmed agent, Borrelia burgdorferi , a spirochete that parasitizes by sequences at 6 additional chromosomal housekeeping vertebrates, is transmitted by hard-bodied ticks through- loci ( gap, alr, glpA, xylB, ackA, and tgt ). (cdc.gov)
  • In the present study, we found that ogerin differentially enhances the activation of OGR1 in various animal species. (bioone.org)
  • Competing causes of mortali- or all of the animal species tested genetic variation, health status, life ty may prevent the development of experimentally. (who.int)
  • We found a 43% drop in genetic variability in the modern wolves," said Carles Vila, one of the team. (newscientist.com)
  • A bottleneck population has less genetic variation and contains fewer breeding individuals. (earth.com)
  • The project will explore the hypothesis that duplicated sequences offer genetic redundancy, potentially crucial for survival post-bottleneck, by providing backup gene copies for essential functions or evolving new ones. (lu.se)
  • I found evidence for benefits of individual genetic variation, and for mate choice mechanisms that help increasing offspring genetic variation. (unil.ch)
  • The research builds on research on the genetic mechanisms underlying evolved resistance to polychlorinated biphenyls and polycyclic aromatic hydrocarbons in Atlantic killifish (Fundulus heteroclitus) populations living at Superfund sites. (clu-in.org)
  • It is therefore important to understand both the mechanisms that give rise to new genetic variation, and the mechanisms that act to maintain variation. (lu.se)
  • Individuals in other species vary too, in both physical appearance and behavior. (utah.edu)
  • In the honey bee's case, genetic variation is distributed among individuals, among different varieties and also within populations of these varieties. (plymouth.ac.uk)
  • Lifespan and heterozygosity were higher in the effective population, although individuals who had their first litter at an older age also had higher inbreeding coefficients. (biorxiv.org)
  • Mating of related individuals may also lead to increased embryonic mortality and prevalence of genetic defects. (icbf.com)
  • Between these two extremes, most species exist as constellations of subpopulations where most individuals interact within their small group, with the rare individual dispersing over greater distances. (osd.mil)
  • Marine tests showed an inhibition of growth with the two different algal species (P. tricornutum and D. tertiolecta), an inhibition of bioluminescence in the bacterium A. fischeri, an alteration on the correct early development of the serpulid F. enigmaticus larvae and immobilization of the copepod A. tonsa individuals at both 24 and 48 hours of exposure. (easychair.org)
  • The study showed that CARD8 functions differently among various species and even varies between individuals in the human population. (daijiworld.com)
  • However, the DQ2 and DQ8 haplotypes are also found in 30 percent of the general population, and only 3 percent of individuals with these haplotypes develop celiac disease. (medlineplus.gov)
  • The control group included 2123 individuals from the general population with normal colonoscopy findings. (medscape.com)
  • Conserving genetic connectivity is fundamental to species persistence, yet rarely is made actionable into spatial planning for imperilled species. (usgs.gov)
  • Other species in our genus include Homo erectus and Homo neanderthalensis . (berkeley.edu)
  • We now have a good knowledge base for investigating the colour variation over longer evolutionary time scales among other species of this damselfly genus, which occurs in Europe, Africa, Asia, Australia, North and South America. (lu.se)
  • For species of management concern, accurate estimates of inbreeding and trait depression are crucial for the species' future. (biorxiv.org)
  • Certain genetic mutations or variations can increase the likelihood of developing specific conditions. (realdetroitweekly.com)
  • Homozygosity increases the expression of disease-causing genetic mutations. (earth.com)
  • The mutations eventually generate inbreeding depression, which means the overall population becomes less healthy. (earth.com)
  • What you need to do is vary the number of discrete populations and the rate of migration between the populations over time. (discovermagazine.com)
  • Four ospC clonal complexes dence of genetic endemism, recent migration events, and (A, B, I, and K groups) were found to be more likely than recombinant genomic types. (cdc.gov)
  • Postglacial migration from separate refugia may explain large-scale variation inS. (lu.se)
  • Conversely, tors, but increasing peridomestic rock hyrax populations are probably responsible for emergence of cutaneous species such as Lutzomyia longipalpis , the vector of L . leishmaniasis in both foci. (cdc.gov)
  • This variation is called 'lactase persistence,' and people who have it can keep milk in their diets even as adults. (utah.edu)
  • One of the key aspects determining the persistence of species under such changing conditions is represented by the ability of a species to disperse. (scar.org)
  • When developing a map it is beneficial to identify several polymorphic distinctions between two species as well as identify similar sequences between two species. (wikipedia.org)
  • Genetic structures of two closely related butterflies, Ypthima multistriata and Y. argus , inhabiting Japan were compared based on the mitochondrial cytochrome c oxidase subunit I (COI) sequences. (bioone.org)
  • Our project seeks to unravel these mysteries by examining how genetic redundancy through duplicated sequences, like orthologs, and the role of non-coding elements such as transposable elements (TEs), contribute to species resilience during and after population bottlenecks. (lu.se)
  • Despite their unique ability to adapt, some species have been forced out by environmental change - which strikes at the heart of Pfrender's quest to understand the genomic infrastructure of these tiny, not-so-great swimmers, which are really rather cute once you get to know them. (nd.edu)
  • Plant species have evolved myriads of solutions, including complex cell type development and regulation, to adapt to dynamic environments. (bvsalud.org)
  • This has significance both for conservating species and for the future evolutionary potential of populations to adapt to rapidly changing environments. (lu.se)
  • This project offers a unique opportunity to be at the forefront of exploring the intricate dynamics of genetic resilience, potentially reshaping our understanding of biodiversity conservation. (lu.se)
  • This, together with predominantly clonal inheritance, means that the biological species concept of Mayr can therefore not be applied to bacteria. (imperial.ac.uk)
  • We tested this using publicly available MLST data from the Neisseria , which frequently undergo recombination both within and between currently recognised species. (imperial.ac.uk)
  • The ESA allows populations to be listed in the same way as an entire species or subspecies as long as they are distinct and significant. (friendsofanimals.org)
  • The listing rule protects the Central and Southwest Atlantic Distinct Population Segment (DPS) and the Indo-West Pacific DPS as "threatened" and the Eastern Atlantic and Eastern Pacific DPSs as "endangered. (friendsofanimals.org)
  • Access to human germline cell types for study is limited, and little is known about the underlying genetic regulation of human gametogenesis. (harvard.edu)
  • This study provides one of the first quantitative views of population genetic variation in bottle gourd. (springer.com)
  • The apiary on the University campus provides the opportunity to support and study the native honeybee, the Black Bee ( Apis Mellifera Mellifera), whose population has previously come near extinction. (plymouth.ac.uk)
  • Several of our study species have large, complex genomes, which present additional challenges, but also facilitate questions that cannot be answered using common model species. (helsinki.fi)
  • McMillan called on Dr. Cushman to perform a species content study for the plant, which blooms from late winter to early spring. (andersonuniversity.edu)
  • We did a species concept study, experimenting to evaluate whether or not these plants meet the idea or qualifications for a new species," Cushman said. (andersonuniversity.edu)
  • In a new study, an international research team found that this genetic colour variation that is shared between several species arose through changes in a specific genomic region at least five million years ago. (lu.se)
  • Of patients with uveitis, 19-88% have the HLA-B27 phenotype, depending upon the study population cited. (medscape.com)
  • Community KAP study on Tuberculosis Iraqi population. (who.int)
  • Invasive species are a major driver of biodiversity loss around the world but in Australia they're the leading cause, according to a landmark UN report. (abc.net.au)
  • Much of her research involves questions concerning threatened and endangered species, yet some involves detection of invasive species. (usgs.gov)
  • There are many types of genetic markers, each with particular limitations and strengths. (wikipedia.org)
  • Molecular markers are effective because they identify an abundance of genetic linkage between identifiable locations within a chromosome and are able to be repeated for verification. (wikipedia.org)
  • To achieve this, a set of 108 locus-specific SSR markers has been developed in bottle gourd by cross-species transferability from 995 mapped Cucumis sativus SSR markers. (springer.com)
  • By using these markers, fine scale population structures and genetic diversities of these species were revealed. (nii.ac.jp)
  • Studying especially the outcrossing species with large population sizes, such as forest trees is important for understanding how adaptation to various environmental conditions arise. (helsinki.fi)