Phylogenomics of the killer whale indicates ecotype divergence in sympatry
For many highly mobile species, the marine environment presents few obvious barriers to gene flow. Even so, there is considerable diversity within and among species, referred to by some as the ‘marine speciation paradox'. The recent and diverse radiation of delphinid cetaceans (dolphins) repres...
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ftpubmed:oai:pubmedcentral.nih.gov:4815593 2023-05-15T17:03:34+02:00 Phylogenomics of the killer whale indicates ecotype divergence in sympatry Moura, A E Kenny, J G Chaudhuri, R R Hughes, M A Reisinger, R R de Bruyn, P J N Dahlheim, M E Hall, N Hoelzel, A R 2015-01 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4815593/ http://www.ncbi.nlm.nih.gov/pubmed/25052415 https://doi.org/10.1038/hdy.2014.67 en eng Nature Publishing Group http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4815593/ http://www.ncbi.nlm.nih.gov/pubmed/25052415 http://dx.doi.org/10.1038/hdy.2014.67 Copyright © 2015 The Genetics Society Original Article Text 2015 ftpubmed https://doi.org/10.1038/hdy.2014.67 2016-04-17T00:07:43Z For many highly mobile species, the marine environment presents few obvious barriers to gene flow. Even so, there is considerable diversity within and among species, referred to by some as the ‘marine speciation paradox'. The recent and diverse radiation of delphinid cetaceans (dolphins) represents a good example of this. Delphinids are capable of extensive dispersion and yet many show fine-scale genetic differentiation among populations. Proposed mechanisms include the division and isolation of populations based on habitat dependence and resource specializations, and habitat release or changing dispersal corridors during glacial cycles. Here we use a phylogenomic approach to investigate the origin of differentiated sympatric populations of killer whales (Orcinus orca). Killer whales show strong specialization on prey choice in populations of stable matrifocal social groups (ecotypes), associated with genetic and phenotypic differentiation. Our data suggest evolution in sympatry among populations of resource specialists. Text Killer Whale Orca Orcinus orca Killer whale PubMed Central (PMC) Heredity 114 1 48 55 |
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Original Article Moura, A E Kenny, J G Chaudhuri, R R Hughes, M A Reisinger, R R de Bruyn, P J N Dahlheim, M E Hall, N Hoelzel, A R Phylogenomics of the killer whale indicates ecotype divergence in sympatry |
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Original Article |
description |
For many highly mobile species, the marine environment presents few obvious barriers to gene flow. Even so, there is considerable diversity within and among species, referred to by some as the ‘marine speciation paradox'. The recent and diverse radiation of delphinid cetaceans (dolphins) represents a good example of this. Delphinids are capable of extensive dispersion and yet many show fine-scale genetic differentiation among populations. Proposed mechanisms include the division and isolation of populations based on habitat dependence and resource specializations, and habitat release or changing dispersal corridors during glacial cycles. Here we use a phylogenomic approach to investigate the origin of differentiated sympatric populations of killer whales (Orcinus orca). Killer whales show strong specialization on prey choice in populations of stable matrifocal social groups (ecotypes), associated with genetic and phenotypic differentiation. Our data suggest evolution in sympatry among populations of resource specialists. |
format |
Text |
author |
Moura, A E Kenny, J G Chaudhuri, R R Hughes, M A Reisinger, R R de Bruyn, P J N Dahlheim, M E Hall, N Hoelzel, A R |
author_facet |
Moura, A E Kenny, J G Chaudhuri, R R Hughes, M A Reisinger, R R de Bruyn, P J N Dahlheim, M E Hall, N Hoelzel, A R |
author_sort |
Moura, A E |
title |
Phylogenomics of the killer whale indicates ecotype divergence in sympatry |
title_short |
Phylogenomics of the killer whale indicates ecotype divergence in sympatry |
title_full |
Phylogenomics of the killer whale indicates ecotype divergence in sympatry |
title_fullStr |
Phylogenomics of the killer whale indicates ecotype divergence in sympatry |
title_full_unstemmed |
Phylogenomics of the killer whale indicates ecotype divergence in sympatry |
title_sort |
phylogenomics of the killer whale indicates ecotype divergence in sympatry |
publisher |
Nature Publishing Group |
publishDate |
2015 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4815593/ http://www.ncbi.nlm.nih.gov/pubmed/25052415 https://doi.org/10.1038/hdy.2014.67 |
genre |
Killer Whale Orca Orcinus orca Killer whale |
genre_facet |
Killer Whale Orca Orcinus orca Killer whale |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4815593/ http://www.ncbi.nlm.nih.gov/pubmed/25052415 http://dx.doi.org/10.1038/hdy.2014.67 |
op_rights |
Copyright © 2015 The Genetics Society |
op_doi |
https://doi.org/10.1038/hdy.2014.67 |
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