• Seeders tend to have shorter generation times than resprouters, particularly under short fire return intervals, thus potentially increasing their molecular evolutionary rates and, ultimately, their diversification. (bioone.org)
  • Molecular evolutionary rates in different DNA regions were compared in 45 phylogenetically paired congeneric taxa from fire-prone Mediterranean-type ecosystems with contrasting seeder and resprouter life histories. (bioone.org)
  • It is rather an exceedingly flimsy, unconvincing story of a major evolutionary extrapolation via '"molecular time travel" using ancestral protein reconstruction. (icr.org)
  • Molecular phylogeny, evolutionary rates, and divergence timing of the symbiotic dinoflagellate genus Symbiodinium. (unige.ch)
  • Molecular phylogeny of Symbiodinium, initially inferred using nuclear ribosomal genes, was recently confirmed by studies of chloroplastic and mitochondrial genes, but with limited taxon sampling and low resolution. (unige.ch)
  • Tsuyuki A, Oya Y, Kajihara H (2022) Reversible shifts between interstitial and epibenthic habitats in evolutionary history: Molecular phylogeny of the marine flatworm family Boniniidae (Platyhelminthes: Polycladida: Cotylea) with descriptions of two new species. (hokudai.ac.jp)
  • Background: Mitochondrial and nuclear genes have generally been employed for different purposes in molecular systematics, the former to resolve relationships within recently evolved groups and the latter to investigate phylogenies at a deeper level. (hal.science)
  • However, a molecular phylogeny supports the monophyly of three main clades: Cuculinae, Phaenicophaeinae, and Neomorphinae-Crotophaginae, with parasitic species within the three of them, thus postulating that brood parasitism had a polyphyletic origin. (encyclopedia.com)
  • show that these phenotypic characters by themselves support-concordant with molecular phylogenies-the planktonic appendicularians as sister group to the remaini. (researchgate.net)
  • 2017). Xibalbanus cozumelensis, a new species of Remipedia (Crustacea) from Cozumel, Mexico, and a molecular phylogeny of Xibalbanus on the Yucatán Peninsula. (uib.no)
  • En 2005 un estudo de filoxenia molecular realizado por primeira vez sobre todas as especies recoñecidas de gaivotas (53 especies) demostrou que o xénero Larus así concibido non era monofilético . (wikipedia.org)
  • Computer scientist Tandy Warnow, biologist Randy Linder and their graduate students have created an automated computing method, called SATé, that can analyze these molecular data from thousands of organisms, simultaneously figuring out how the sequences should be organized and computing their evolutionary relatedness in as little as 24 hours. (sciencedaily.com)
  • In this introduction to modern cellular, genetic, and molecular biology we will explore life science concepts with an emphasis on their integral nature and evolutionary relationships. (middlebury.edu)
  • Molecular DNA techniques are nowadays widely used and instrumental tools in a wide range of applications from conservation biology to evolutionary ecology. (lu.se)
  • For students in molecular biology who want to learn how molecular techniques can be applied to ecological and evolutionary questions in non-model organisms. (lu.se)
  • Evolutionary biology is a sub-field of biology concerned with the study of the evolutionary processes that produced the diversity of life on Earth . (wikimedia.org)
  • Fanny does research in Systematics (Phylogeny), Evolutionary Biology and Zoology. (researchgate.net)
  • This project has given me the opportunity to improve on biotech lab work and genetics in addition to my evolutionary biology and ecology background that I work in frequently. (mtsu.edu)
  • BMC Evolutionary Biology , 3 , 16. (palass.org)
  • Our process is novel because it rapidly and simultaneously aligns sequences and looks for the best phylogenies," says Linder, associate professor of integrative biology. (sciencedaily.com)
  • This is a major step forward for evolutionary biology. (sciencedaily.com)
  • BMC Evolutionary Biology 2011, 11 (1):110. (lu.se)
  • Among my research interests are building large family trees of extinct species, understanding major evolutionary transitions (when organisms drastically change their body plans and expand into new environments), and using computed tomography scanning to study the biology and behaviours of extinct species. (lu.se)
  • I am a researcher at Lund University with broad interests in ecology and evolutionary biology, including the fundamental processes of ecology, evolution and biogeographical processes that underpin community and ecosystem structure and dynamics. (lu.se)
  • How phylogenies are depicted and used in informal science settings impacts their accessibility and effectiveness in communicating about evolution to visitors. (springer.com)
  • In fact, a recent study found that even a single visit to an evolution exhibit can influence children's thinking about evolutionary concepts (Diamond et al. (springer.com)
  • Thus, traditional palaeontological works are often using evolutionary grades as formal or informal taxa, including examples such as labyrinthodonts, anapsids, synapsids, dinosaurs, ammonites, eurypterids, lobopodians and many of the more well known taxa of human evolution. (wikipedia.org)
  • Furthermore, the article speaks of the "central role for chance in evolutionary history" and "a serial chain of chance events" 1 that evolution somehow took. (icr.org)
  • Phylogeny: Rewriting evolution. (icr.org)
  • It remains a tool to explain evolutionary dogma to students and to get them to take the theory of evolution for granted. (answersingenesis.org)
  • To test competing hypotheses regarding the origins and evolution of social parasitism, we reconstructed the first global phylogeny of Formica ants and representative formicine outgroups. (biorxiv.org)
  • Using mathematical calculations, models of sequence evolution, and simulated sequencing of published genomes, we address both evolutionary and sampling issues caused by direct reconstruction, including homoplasy, sequencing errors, and incomplete sequencing coverage. (biomedcentral.com)
  • SATé could completely change the practice of making evolutionary trees and revolutionize our understanding of evolution," says Warnow, professor of computer science and lead author of the study. (sciencedaily.com)
  • I am a palaeontologist and evolutionary biologist who studies the anatomy, phylogeny, and evolution of fossil vertebrates, particularly dinosaurs, birds, and mammals. (lu.se)
  • We collected a 5-gene dataset to estimate phylogeny, and used multilocus genetic networks, analysis of population structure, and a Bayesian coalescent approach to infer species boundaries in this group. (ku.edu)
  • Our results contradict previous systematic hypotheses, reveal surprising relationships between Philippine and non-Philippine lineages, and simultaneously uncover novel, cryptic evolutionary lineages (new putative species). (ku.edu)
  • An evolutionary grade is a group of species united by morphological or physiological traits, that has given rise to another group that has major differences from the ancestral group's condition, and is thus not considered part of the ancestral group, while still having enough similarities that we can group them under the same clade. (wikipedia.org)
  • In bacteriology, the renaming of species or groups that turn out to be evolutionary grades is kept to a minimum to avoid misunderstanding, which in the case of pathogens could have fatal consequences. (wikipedia.org)
  • Evolutionary biologists study the descent of species , and the origin of new species . (wikimedia.org)
  • Do human embryos replay the evolutionary history of their species as they develop? (answersingenesis.org)
  • Do developing embryos really replay the evolutionary history of their species as they develop? (answersingenesis.org)
  • In contrast to inquiline ant species in other genera, the high social parasite diversity in Formica likely originated via allopatric speciation, highlighting the diversity of convergent evolutionary trajectories resulting in nearly identical parasitic life history syndromes. (biorxiv.org)
  • Most phylogenies are reconstructed from a tiny portion of the genome [ 2 ], but as next-generation sequencing technologies become faster and cheaper, the number of species for which whole genome sequence data are available has increased dramatically. (biomedcentral.com)
  • This approach would include aspects of genetics, habitat ecology, evolutionary history, and conservation/environmental policy to generate an all-inclusive conservation plan for species threatened by climate change and anthropogenic habitat loss. (mtsu.edu)
  • Main conclusions We infer that these differences reflect distinct evolutionary histories in each locality despite the resident species having similar life-history characteristics. (bas.ac.uk)
  • The evolutionary history and the phylogenetic relationships between species within the genus are not well understood. (scialert.net)
  • This perspective provides additional insight into understanding the evolutionary history of the genus Pistacia to make the species more useful for plant improvement or genetic studies. (scialert.net)
  • Detailed, accurate evolutionary trees that reveal the relatedness of living things can now be determined much faster and for thousands of species with a computing method developed by computer scientists and a biologist. (sciencedaily.com)
  • Detailed, accurate evolutionary trees that reveal the relatedness of living things can now be determined much faster and for thousands of species with a computing method developed by computer scientists and a biologist at The University of Texas at Austin. (sciencedaily.com)
  • This is important because different alignments can lead to significantly different phylogenies, and scientists must find the phylogeny that best represents the evolutionary relationships among the species in question. (sciencedaily.com)
  • The laboratory component will examine lecture topics in detail (such as measuring the evolutionary response of bacteria, adaptations of stream invertebrates to life in moving water, invasive species and their patterns of spread). (middlebury.edu)
  • A high-resolution core genome analysis has clarified the phylogeny of the Propionibacteriaceae family in an attempt to better understand how species relate to each other and to unravel adaptive processes behind the transmission and evolutionary adaptation of Propionibacterium acnes to human skin. (medscape.com)
  • The first block is about using DNA sequencing for species identification (barcoding) and phylogenies. (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)
  • Phylogenetic comparative methods commonly assume that the evolutionary relationships between the studied species are known. (lu.se)
  • Especially amongst the lower orders we are lacking phylogenies, we might be studying fossil data where the DNA signal has degraded and in fact we are still discovering new species (even among the higher orders). (lu.se)
  • Summed up in the catchy statement, "Ontogeny recapitulates phylogeny," recapitulation theory (also known as the biogenetic law ) was popularized by Ernst Haeckel's nineteenth century illustrations comparing animal and human embryos. (answersingenesis.org)
  • Ontogeny recapitulates phylogeny. (answersingenesis.org)
  • IRWIN, R.E. The evolutionary importance of behavioural development: the ontogeny and phylogeny of bird song. (bvsalud.org)
  • Mediterranean-type ecosystems are among the most remarkable plant biodiversity "hot spots" on the earth, and fire has traditionally been invoked as one of the evolutionary forces explaining this exceptional diversity. (bioone.org)
  • A large-scale population based organelle pan-genomes construction and phylogeny analysis reveal the genetic diversity and the evolutionary origins of chloroplast and mitochondrion in Brassica napus L. (biomedcentral.com)
  • Together with collaborators we also aim to apply and test such theory by parameterizing the models given unique data on the ecology, phylogeny, diversity, spatial distribution, and functional traits of Neotropical plant-hummingbird communities in the Andes. (lu.se)
  • We recommend holding in abeyance taxonomic decisions until multiple, converging lines of evidence are available to best inform taxonomists, evolutionary biologists, and conservationists. (ku.edu)
  • Evolutionary biologists often acknowledge the inaccuracy of the drawings but continue to regard the recapitulation "theory" 2 and its variants as valid. (answersingenesis.org)
  • On the strength of its popularity among evolutionary biologists, the idea has gained wide acceptance even in other disciplines such as linguistics and developmental psychology. (answersingenesis.org)
  • Since Charles Darwin, biologists have constructed evolutionary trees to explain the relatedness of plants, animals and other organisms. (sciencedaily.com)
  • Instead of doing things by hand, evolutionary biologists can now trust our automated program," says Warnow. (sciencedaily.com)
  • The result of such an analysis is a phylogenetic tree-a diagram containing a hypothesis of relationships that reflects the evolutionary history of a group of organisms. (wikipedia.org)
  • In phylogenetic nomenclature evolutionary grades (or any other form of paraphyly) are not accepted. (wikipedia.org)
  • With the rise of phylogenetic nomenclature, the use of evolutionary grades as formal taxa has come under debate. (wikipedia.org)
  • The difference between the statement "B is part of A" (phylogenetic approach) and "B has evolved from A" (evolutionary approach) is, however, one of semantics rather than of phylogeny. (wikipedia.org)
  • Both express the same phylogeny, but the former emphasizes the phylogenetic continuum while the latter emphasizes a distinct shift in anatomy or ecology in B relative to A. Fish represent a grade, in as much as they have given rise to the land vertebrates. (wikipedia.org)
  • In the case of rapid and recent evolutionary radiations, mitochondrial genes like cytochrome b (CYB) are often inefficient for resolving phylogenetic relationships. (hal.science)
  • Understanding the phylogenetic relationships among organisms is an essential aspect for many ecological, biogeographical, and evolutionary questions [ 1 ]. (biomedcentral.com)
  • We focus on the phylogenetic distance between communities (phylobetadiversity) as it contains signals from both ecological and evolutionary processes and we construct spatially explicit eco-evolutionary community models that generate phylobetadiversity patterns, given different degrees of ecological interactions, dispersal propensity of the organism and properties of the environmental gradient. (lu.se)
  • Sequence analyses suggest that TA families are linked by complex evolutionary relationships reflecting likely swapping of functional domains between different TA families. (nih.gov)
  • These analyses typically go beyond the expertise of researchers who only require a phylogeny to place comparative studies into an evolutionary framework. (biomedcentral.com)
  • Our analyses resolve the phylogeny of honey bees with the dwarf honey bees diverging first. (nih.gov)
  • Tree of life diagrams are graphic representations of phylogeny-the evolutionary history and relationships of lineages-and as such these graphics have the potential to convey key evolutionary ideas and principles to a variety of audiences. (springer.com)
  • As visual representations of the history of lineages or phylogeny, trees reflect the core concept of common ancestry. (springer.com)
  • Here, we present the first complete view of Symbiodinium phylogeny based on concatenated partial sequences of chloroplast 23S-rDNA (cp23S) and nuclear 28S-rDNA (nr28S) genes, including all known Symbiodinium lineages. (unige.ch)
  • The Leipzig School of Human Origins offers a unique graduate program that combines different disciplines to study the evolutionary history of humans and the great apes. (mpg.de)
  • In order to fully understand evolutionary grades, one must first get a better understanding of phylogenetics: the study of the evolutionary history and relationships among or within groups of organisms. (wikipedia.org)
  • By combining our new results with available data on behavioural as well as climate and sea level changes in Southeast Asia during the Plio- and Pleistocene, we have developed two scenarios for the evolutionary history of this primate group, which may help explain the current geographical distribution of its members. (ipb.ac.id)
  • Put another way, the team of evolutionists set the stage for the extremely long evolutionary history of ancestral proteins by inferring "the genetic sequences of ancient receptor proteins" (emphasis added) and then airily announcing it was an ancestor. (icr.org)
  • This would imply that brood parasitism arose only once in the evolutionary history of cuckoos. (encyclopedia.com)
  • The new taxon represents the oldest Cretaceous diagnostic tyrannosauroid on the continent, extending the definitive record of this clade by ~15 million years, and providing a key datum for untangling evolutionary, paleobiogeographic, and ecological dynamics during a turbulent interval in Earth's history. (nature.com)
  • The objective of this perpestective is to provide additional insight into understanding the evolutionary history of Pistacia . (scialert.net)
  • A phylogenomic study of birds reveals their evolutionary history. (palass.org)
  • Researchers have reconstructed historical changes in the African landscape using the evolutionary history of the African sharptooth catfish. (naturalsciences.be)
  • Large-Scale Phylogenomic Analysis Reveals the Complex Evolutionary History of Rabies Virus in Multiple Carnivore Hosts. (cdc.gov)
  • Evolutionary trees of life are branching diagrams that depict hypothesized relationships-the historical pattern of divergence and descent between taxa-as a series of branches that merge at internal branches representing common ancestry, which in turn are connected with more distant relatives. (springer.com)
  • shared a recent common ancestor, which suggests that The effective population size of northeastern B. burgdor- substantial evolutionary divergence in human invasiveness feri is small because of its recent colonization of the north- has not occurred. (cdc.gov)
  • These distance metrics, however, are derived without an evolutionary model and therefore do not represent the genetic distances (see [ 17 ] for a recent review). (biomedcentral.com)
  • The genetic basis of the evolutionary diversification of honey bees remains largely unknown. (nih.gov)
  • B. burgdorferi is transmitted to humans disequilibrium among genetic loci can result from several during the blood meal of an infected Ixodes tick, predomi- evolutionary and ecologic forces in addition to small popu- nantly Ixodes scapularis in North America ( 2 ). (cdc.gov)
  • 7) Evolutionary genetics of the costs and benefits of recombination. (elte.hu)
  • This differs from the more traditional approach of evolutionary taxonomy. (wikipedia.org)
  • Therefore, constructing a phylogeny from genomic data would be a valuable tool even if genome datasets were not collected with this in mind. (biomedcentral.com)
  • The evolutionary dynamics that retain long neutral genomic sequences in face of indel deletion bias: a model and its application to human introns. (tau.ac.il)
  • In Linnaean systematics, evolutionary grades are accepted in higher taxonomic ranks, though generally avoided at family level and below. (wikipedia.org)
  • To date, eco-evolutionary dynamics in the ascent of tyrannosauroids to top predator roles have been obscured by a 70-million-year gap in the North American (NA) record. (nature.com)
  • Estimating Dispersal and Evolutionary Dynamics in Diploporan Blastozoans (Echinodermata) Across the Great Ordovician Biodiversification Event" Paleobiology Vol. 47 Iss. (bepress.com)
  • We adopt a modeling framework for spatiotemporal predator-pest dynamics that in addition to landscape structure, explicitly includes eco-evolutionary dynamics and adaptation in functional traits (e.g. body size, feeding specialization and dispersal). (lu.se)
  • How people interpret and understand evolutionary trees is a complex interaction between their prior knowledge and understanding of underlying evolutionary ideas such as similarity, ancestry, and relatedness, and their ability to read the relationships depicted in a schematic tree diagram. (springer.com)
  • To account for potential influences of evolutionary relatedness, we. (lu.se)
  • Phylogeny reconstruction was carried out using maximum likelihood and Bayesian inference. (ecu.edu)
  • The aim of this project is to study how biodiversity (e.g. phylobetadiversity) is generated and maintained by interacting ecological and evolutionary assembly processes along environmental gradients. (lu.se)
  • Results: The analysis of GHR sequences improves the overall resolution of the Arvicolinae phylogeny. (hal.science)
  • Total 38 nucleotides and 36 proteins sequences of linA and linB were used for constructing the phylogeny. (ispub.com)
  • nevertheless, the illusion of simplicity seems to fit the evolutionary story that comparative embryology supposedly tells. (answersingenesis.org)
  • I am a comparative anatomist, paleontologist, and evolutionary biologist. (lu.se)
  • However, the actual evolutionary transitions are not well understood in almost all taxa. (hokudai.ac.jp)
  • Organizing organisms into grades rather than strict clades can also be very useful to understand the evolutionary sequence behind major diversification of both animals and plants. (wikipedia.org)
  • Recently, secular scientists revealed their speculation of alternate evolutionary histories by studying a protein they supposed existed half a billion years ago. (icr.org)
  • 2017. Alternative evolutionary histories in the sequence space of an ancient protein. (icr.org)
  • We address the Lyme disease incidence may result from a disparity in the hypothesis that B. burgdorferi populations in the Northeast human invasiveness of the bacteria in the Northeast and Midwest caused by fundamentally different evolutionary and Midwest have fundamentally different evolutionary histories. (cdc.gov)
  • In this study we compare birds over the entire passerine phylogeny, so that we can compensate for evolutionary kinship. (lu.se)
  • We will study the phylogeny, anatomy, physiology, and ecology of the major extinct and extant taxa of vertebrates and discuss how each group solves the problems of finding food, finding mates, and avoiding predators. (middlebury.edu)
  • Currently, the simple step of generating a robust phylogeny for a group of poorly studied organisms can require substantial research investment. (biomedcentral.com)
  • Most of my research is theoretical in nature and I use eco-evolutionary simulation models to study how assembly processes across spatiotemporal scales affect community patterns. (lu.se)
  • Warnow and Linder have created a method that speeds up the process and removes any subjectivity," says Michael Braun, an evolutionary biologist at the Smithsonian Institution not associated with this project. (sciencedaily.com)
  • EvoRator: prediction of residue-level evolutionary rates from protein structures using machine learning. (tau.ac.il)
  • Before a tree, or phylogeny, can be determined, DNA and protein sequence data must be organized. (sciencedaily.com)
  • Here we develop eco-evolutionary theory to explore how resistance genes alter the stability of diverse microbiomes in response to stressors. (bvsalud.org)
  • A Phylogeny-Based Global Nomenclature System and Automated Annotation Tool for H1 Hemagglutinin Genes from Swine Influenza A Viruses. (cdc.gov)
  • To greatly simplify the analysis, we present an Assembly and Alignment-Free (AAF) method ( https://sourceforge.net/projects/aaf-phylogeny ) that constructs phylogenies directly from unassembled genome sequence data, bypassing both genome assembly and alignment. (biomedcentral.com)
  • The idea of a "tree of life" represents a core concept of evolutionary science-phylogeny-and is depicted graphically using an almost bewildering array of formats and terminology, in which even a particular geometry used can have multiple names associated with it. (springer.com)
  • Amongst those helping to organise the historic seminar were Dr. Dominique Tassot, Director of Centre d'Etude et de Prospectives sur la Science (C.E.P). C.E.P. is an organisation consisting of 700 French speaking scientists, intellectuals and representatives of other professions, all of whom oppose evolutionary theory on scientific grounds. (uncommondescent.com)
  • While some dedicated evolutionists debate which variation of the recapitulation theory is best, others claim it is a valid predictor of evolutionary stages and try to unravel the deep evolutionary past shrouded by what they claim is an "incomplete" fossil record. (answersingenesis.org)
  • In microbiology, taxa that are thus seen as excluded from their evolutionary grade parent group are called taxa in disguise. (wikipedia.org)
  • Paraphyletic taxa will often, but not always, represent evolutionary grades. (wikipedia.org)
  • In the present study, we show reversible evolutionary shifts from interstitial to epibenthic habitats in the lineage of the polyclad flatworm genus Boninia. (hokudai.ac.jp)
  • Phylogeny of major intrinsic proteins. (lu.se)
  • The Leipzig School of Human Origins - An International Max Planck Research School - by the University of Leipzig and the Max Planck Institute for Evolutionary Anthropology. (mpg.de)