KAKEN - Research Projects | Molecular phylogenetic geography of pan tropic sea dispersed plants : Gene flow and species...
Gene flow and species differentiation through geographic barrier.. Research Project ... Moreover gene flows among distant populations were observed. Geographic distance was slightly correlated with genetic distance. ... pan tropic sea dispersed plant / molecular phylogenetic geography / geographical barrier / gene flow / speciation / Hibiscus ... These results suggested substantial gene flow occurred between populations in the different oceanic regions due to sea-drifted ...https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-14405015/
Secondary contact, gene flow and clinal variation between two mtDNA lineages of the Northeastern ringneck snake Diadophis...
... gene flow and clinal variation between two mtDNA lineages of the Northeastern ringneck snake Diadophis punctatus edwardsii ( ... Phylogeographic breaks without geographic barriers to gene flow. Evolution 56: 2383- 2394. Google Scholar CrossRef Search ADS ... Phylogeographic breaks without geographic barriers to gene flow. Evolution 56: 2383- 2394. Google Scholar CrossRef Search ADS ... which has been shown to be a strong barrier to dispersal and gene flow for terrestrial organisms (Soltis et al., 2006). The ...https://www.deepdyve.com/lp/ou_press/secondary-contact-gene-flow-and-clinal-variation-between-two-mtdna-bJyMpNBv6j
Publications | IrwinLab
Phylogeographic breaks without geographic barriers to gene flow. Evolution 56: 2383-2394. PDF ... Increasing evidence of the role of gene flow in animal evolution: hybrid speciation in the yellow-rumped warbler complex. ... Large geographic range size reflects a patch-work of divergent lineages in the long-toed salamander (Ambystoma macrodactylum). ... A novel approach for finding ring species: look for barriers rather than rings. BMC Biology 10: 21. (invited Commentary) Link; ...https://www.zoology.ubc.ca/~irwin/irwinlab/publications/
Publications :: The Department of Zoology at the University of British Columbia
Phylogeographic breaks without geographic barriers to gene flow. Evolution 56: 2383-2394 Link » ... Large geographic range size reflects a patch-work of divergent lineages in the Long-Toed Salamander (Ambystoma macrodactylum). ... A novel approach for finding ring species: look for barriers rather than rings. BMC Biology 10: 21 (invited Commentary) Link » ... Genomic analysis of a migratory divide reveals candidate genes for migration and implicates selective sweeps in generating ...http://www.zoology.ubc.ca/publications/irwin
Frontiers | Origin and Dispersal of Domesticated Peach Palm | Ecology and Evolution
... and allows visualizing the more humid equatorial geographic barrier hampering gene flow between them. ... although there is gene flow (or gene bank error?) visible in the Structure analyses (Figures 8B,C). Another possibility is that ... Although the Core Collection is quite small and there appears to be abundant gene flow among these populations at different ... Sympatry has additional significance: gene flow inhibits population divergence (Futuyma, 2005; p. 216) and this suggests that ...https://www.frontiersin.org/articles/10.3389/fevo.2017.00148/full
Genetic history of Italy - Wikipedia
confirms that the Mediterranean Sea has acted as a strong barrier to gene flow through geographic isolation following initial ... Other Italians pull away toward Southeastern and Central Europe consistent with geography and some post-Neolithic gene flow ... Molecular anthropology found no evidence of significant Northern geneflow into the Italian peninsula over the last 1500 years. ... has prevented large migration flows aimed at colonizing the Italian lands. Recent genome-wide studies have been able to detect ...https://en.wikipedia.org/wiki/Genetic_history_of_Italy
Wahlund effect - Wikipedia
The underlying causes of this population subdivision could be geographic barriers to gene flow followed by genetic drift in the ...https://en.wikipedia.org/wiki/Wahlund_effect
Geodispersal - Wikipedia
As these geographic barriers break down, organisms of the secluded ecosystems can interact, allowing gene flow between ... which reduces gene flow through the creation of geographic barriers. In geodispersal, the geographical ranges of individual ... "Terrestrial fishes: rivers are barriers to gene flow in annual fishes from the African savanna." Journal of Biogeography, Oct. ... In biogeography, geodispersal is the erosion of barriers to gene flow and biological dispersal (Lieberman, 2005.; Albert and ...https://en.wikipedia.org/wiki/Geodispersal
Commonalities in Development of Pure Breeds and Population Isolates Revealed in the Genome of the Sardinian Fonni's Dog |...
From a genetic viewpoint, dog breeds are defined as populations with human-induced or geographic barriers to gene flow, and ... Geographic isolation, however, is an additional barrier that can affect both the human inhabitants of a region, as well as the ... Once inhabited, the island maintained a distinctive genetic homogeneity, although geographic and linguistic barriers led to the ... 2014 Linguistic, geographic and genetic isolation: a collaborative study of Italian populations. J. Anthropol. Sci. 92: 201-231 ...http://www.genetics.org/content/204/2/737
Dienekes' Anthropology Blog: mtDNA of Native Mexicans
The Mesoamerican isthmus has constituted an important geographic barrier that has severely restricted gene flow between North ...https://dienekes.blogspot.com/2009/06/mtdna-of-native-mexicans.html
Haplocarpha rueppelii - Wikipedia
... suggests a potential geographic barrier for plant dispersal and gene flow in East Africa". Science Bulletin. 60 (13): 1184-1192 ...https://en.wikipedia.org/wiki/Haplocarpha_rueppelii
Connectivity of Caribbean coral populations: complementary insights from empirical and modelled gene flow - FOSTER - 2012 -...
Further, the geographic location and porosity of the previously described east-west barrier to gene flow in the Caribbean is ... L P Holland, T L Jenkins, J R Stevens, Contrasting patterns of population structure and gene flow facilitate exploration of ... Connectivity of Caribbean coral populations: complementary insights from empirical and modelled gene flow. Authors. *. NICOLA L ... Lagrangian model of larval dispersal and a theoretical genetic model are integrated with the most extensive study of gene flow ...http://onlinelibrary.wiley.com/doi/10.1111/j.1365-294X.2012.05455.x/full?globalMessage=0
Biological dispersal - Wikipedia
... following the erosion of geographic barriers to dispersal or gene flow (Lieberman, 2005; Albert and Reis, 2011). Dispersal can ... The formation of barriers to dispersal or gene flow between adjacent areas can isolate populations on either side of the ... Dispersal of organisms is a critical process for understanding both geographic isolation in evolution through gene flow and the ... Lenormand, T. (2002). "Gene flow and the limits to natural selection". Trends in Ecology and Evolution. 17 (4): 183-189. doi: ...https://en.wikipedia.org/wiki/Biological_dispersal
Paternal Genetic Landscape of Zagros Region of Iran and Its Role in the Gene Flow in the Populations of the Region - Iranian...
Moreover, the important role of the Zagros Mountains as a geographic barrier to gene flow from neighboring regions clearly ... tree of the surrounding population and showed an important geographic barrier role for these mountains to gene flow from ... Paternal Genetic Landscape of Zagros Region of Iran and Its Role in the Gene Flow in the Populations of the Region ... Bahmanimehr A, Nikmanesh F, Yepiskoposyan L. Paternal Genetic Landscape of Zagros Region of Iran and Its Role in the Gene Flow ...http://irje.tums.ac.ir/browse.php?a_id=5279&sid=1&slc_lang=en
Topic 10.3: Gene Pools and Speciation - AMAZING WORLD OF SCIENCE WITH MR. GREEN
Three main barriers to gene flow are included: geographic, pre-zygotic and post-zygotic. Both allopatric and sympatric ... Given data, calculate allele frequencies of genes in a gene pool.. *Given data, calculate genotype frequencies for genes in a ... Topic 10.3: Gene Pools and Speciation. image from Study.com In the Gene Pools and Speciation unit we will learn some of the ... Geographic isolation - occurs when two populations of the same species or breeding group are separated by a physical barrier, ...https://www.mrgscience.com/topic-103-gene-pools-and-speciation.html
Strawberry poison-dart frog - Wikipedia
When populations are separated by geographic distances and landscape barriers, they frequently experience restricted gene flow ... "Genetic structure is correlated with phenotypic divergence rather than geographic isolation in the highly polymorphic ...https://en.wikipedia.org/wiki/Strawberry_poison-dart_frog
3.5 Speciation - NEW WEBSITE EJBIOATDIO.WEEBLY.COM
This is when populations become separated by a geographic barrier which stops all gene flow between populations. Any ... A and E would still be classed as the same species - for a truly new species to be formed, gene flow between the demes needs to ... Gene flow between the two kokako populations was stopped. Over a long period of time, environmental differences between the two ... Then, as the ice began to thaw, the two islands became separated by a geographic barrier - the Cook Strait - separating the ...https://ejdio.weebly.com/35-speciation.html
Long-term genetic stability and a high-altitude East Asian origin for the peoples of the high valleys of the Himalayan arc |...
Genome-wide studies of the geographic structure of modern populations clearly point to the Himalayas as a barrier to gene flow ... 2013) The Himalayas: Barrier and conduit for gene flow. Am J Phys Anthropol 151(2):169-182. ... results suggest that the Himalayas have long served as a remarkably resistant barrier to northward but not southward gene flow ... For sites with a read depth ≥1, allelic variants were determined in the EGLN1 gene and in 20 tagging SNPs in the EPAS1 gene (SI ...http://www.pnas.org/content/early/2016/06/16/1520844113
Protocols and Video Articles Authored by Monica F. Poelchau
... geographic distance in Ficus insipida and historical barriers to gene flow or cryptic reproductive barriers for Brosimum ... Comparative studies that identify common barriers to gene flow across multiple species within a community are important to both ... We identify global trends in gene expression that show gradual convergence of diapause gene expression upon gene expression ... structure of trees in this region is determined by complex interactions of both historical and current barriers to gene flow. ...https://www.jove.com/author/Monica+F._Poelchau
Assessment of population genetic structure in the arbovirus vector midge, Culicoides brevitarsis (Diptera: Ceratopogonidae),...
The vector's panmictic genetic structure within Australia cannot explain the differential geographic distribution of BTV ... Culicoides brevitarsis is the major vector of BTV in Australia and is distributed across the entire geographic range of the ... The gene flow barriers between northern PNG and other Australasian populations would mainly be geographic. High mountain ridges ... The main geographical barrier to gene flow from northern PNG to Australia would be the Central and Owen Stanley Range of PNG ...https://veterinaryresearch.biomedcentral.com/articles/10.1186/s13567-015-0250-8
Genetic equilibrium - Wikipedia
This includes local adaptation, range contraction and expansion and lack of gene flow due to geographic or behavioral barriers ... They exist in large, panmictic populations that don't appear to be strongly affected by geographic barriers. In spite of this, ... Genetic equilibrium describes the condition of an allele or genotype in a gene pool (such as a population) where the frequency ... It is commonly studied using models that take as their assumptions those of Hardy-Weinberg, meaning: No gene mutations ...https://en.wikipedia.org/wiki/Genetic_equilibrium
Biological consequences of rapid environmental change in the American pika Ochotona princeps - UBC Library Open Collections
There are several natural geographic barriers to gene flow that may account, in part, 24 for the genetic structure observed ... However, I also provided an alternative hypothesis that natural barriers to gene flow in the form of a seasonal stream and ... 2016). Future research could potentially disentangle the influence of natural and anthropogenic barriers to gene flow by using ... barriers to gene flow likely associated with resource extraction and road construction may limit connectivity across the ...https://open.library.ubc.ca/cIRcle/collections/ubctheses/24/items/1.0355850
BY52 Test 1 Flashcards - Cram.com
a speciation event in which the initial block of gene flow is caused by a geographic barrier that physically isolates the ...http://www.cram.com/flashcards/by52-test-1-439158
Substantial geographic isolation is recognized as providing the most effective barrier to gene flow, and the vast majority of ... The reproductive barriers discussed above reflect this bias. Additional barriers to gene flow found in natural populations ... A second approach is to use molecular markers to examine ongoing gene flow or to estimate gene flow indirectly from overall ... barriers that reduce gene flow can be divided into several categories (Rieseberg and Willis, 2007): (1) prepollination barriers ...http://www.plantcell.org/content/24/7/2710
Evolutionary Biology/Speciation - Wikibooks, open books for an open world
... which allows for gene flow (genetic exchange), within a broad geographic range. The resulting offspring are fertile because ... The geographic barrier ends. The two populations now have the opportunity to interbreed again. If the populations do not ... Gene flow has been reduced. This type of speciation was first discovered by Hugo de Vries, a botanist. He studied variation ... Gene flow has been reduced. Polyploid plant species are very common. Scientists have recorded many new species of plants due to ...https://en.wikibooks.org/wiki/Evolutionary_Biology/Speciation