Data from: Population genomics of the killer whale indicates ecotype evolution in sympatry involving both selection and drift
The evolution of diversity in the marine ecosystem is poorly understood, given the relatively high potential for connectivity, especially for highly mobile species such as whales and dolphins. The killer whale (Orcinus orca) has a worldwide distribution, and individual social groups travel over a wi...
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ftuliverpoolrdc:oai:datacat.liverpool.ac.uk:2092 2023-05-15T17:03:31+02:00 Data from: Population genomics of the killer whale indicates ecotype evolution in sympatry involving both selection and drift Moura, Andre E. Kenny, John G. Chaudhuri, Roy Hughes, Margaret A. Welch, Andreanna Reisinger, Ryan R. de Bruyn, P. J. Nico Dahlheim, Marilyn E. Hall, Neil Hoelzel, A. Rus J. Welch, Andreanna 2014-09-23 https://datacat.liverpool.ac.uk/2092/ English eng University of Liverpool Moura, Andre E., Kenny, John G., Chaudhuri, Roy, Hughes, Margaret A., Welch, Andreanna, Reisinger, Ryan R., de Bruyn, P. J. Nico, Dahlheim, Marilyn E., Hall, Neil, Hoelzel, A. Rus and J. Welch, Andreanna (2014) Data from: Population genomics of the killer whale indicates ecotype evolution in sympatry involving both selection and drift. [Data Collection] Data Collection NonPeerReviewed 2014 ftuliverpoolrdc 2023-01-26T23:26:42Z The evolution of diversity in the marine ecosystem is poorly understood, given the relatively high potential for connectivity, especially for highly mobile species such as whales and dolphins. The killer whale (Orcinus orca) has a worldwide distribution, and individual social groups travel over a wide geographic range. Even so, regional populations have been shown to be genetically differentiated, including among different foraging specialists (ecotypes) in sympatry. Given the strong matrifocal social structure of this species together with strong resource specialisations, understanding the process of differentiation will require an understanding of the relative importance of both genetic drift and local adaptation. Here we provide a high resolution analysis based on nuclear SNP markers and inference about differentiation at both neutral loci and those potentially under selection. We find that all population comparisons, within or among foraging ecotypes, show significant differentiation, including populations in parapatry and sympatry. Loci putatively under selection show a different pattern of structure compared to neutral loci, and are associated with gene ontology terms reflecting physiologically relevant functions (e.g. related to digestion). The pattern of differentiation for one ecotype in the North Pacific suggests local adaptation and shows some fixed differences among sympatric ecotypes. We suggest that differential habitat use and resource specialisations have promoted sufficient isolation to allow differential evolution at neutral and functional loci, but that the process is recent and dependent on both selection and drift. Text Killer Whale Orca Orcinus orca Killer whale DataCat: The Research Data Catalogue (University of Liverpool) Pacific |
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DataCat: The Research Data Catalogue (University of Liverpool) |
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The evolution of diversity in the marine ecosystem is poorly understood, given the relatively high potential for connectivity, especially for highly mobile species such as whales and dolphins. The killer whale (Orcinus orca) has a worldwide distribution, and individual social groups travel over a wide geographic range. Even so, regional populations have been shown to be genetically differentiated, including among different foraging specialists (ecotypes) in sympatry. Given the strong matrifocal social structure of this species together with strong resource specialisations, understanding the process of differentiation will require an understanding of the relative importance of both genetic drift and local adaptation. Here we provide a high resolution analysis based on nuclear SNP markers and inference about differentiation at both neutral loci and those potentially under selection. We find that all population comparisons, within or among foraging ecotypes, show significant differentiation, including populations in parapatry and sympatry. Loci putatively under selection show a different pattern of structure compared to neutral loci, and are associated with gene ontology terms reflecting physiologically relevant functions (e.g. related to digestion). The pattern of differentiation for one ecotype in the North Pacific suggests local adaptation and shows some fixed differences among sympatric ecotypes. We suggest that differential habitat use and resource specialisations have promoted sufficient isolation to allow differential evolution at neutral and functional loci, but that the process is recent and dependent on both selection and drift. |
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Moura, Andre E. Kenny, John G. Chaudhuri, Roy Hughes, Margaret A. Welch, Andreanna Reisinger, Ryan R. de Bruyn, P. J. Nico Dahlheim, Marilyn E. Hall, Neil Hoelzel, A. Rus J. Welch, Andreanna |
spellingShingle |
Moura, Andre E. Kenny, John G. Chaudhuri, Roy Hughes, Margaret A. Welch, Andreanna Reisinger, Ryan R. de Bruyn, P. J. Nico Dahlheim, Marilyn E. Hall, Neil Hoelzel, A. Rus J. Welch, Andreanna Data from: Population genomics of the killer whale indicates ecotype evolution in sympatry involving both selection and drift |
author_facet |
Moura, Andre E. Kenny, John G. Chaudhuri, Roy Hughes, Margaret A. Welch, Andreanna Reisinger, Ryan R. de Bruyn, P. J. Nico Dahlheim, Marilyn E. Hall, Neil Hoelzel, A. Rus J. Welch, Andreanna |
author_sort |
Moura, Andre E. |
title |
Data from: Population genomics of the killer whale indicates ecotype evolution in sympatry involving both selection and drift |
title_short |
Data from: Population genomics of the killer whale indicates ecotype evolution in sympatry involving both selection and drift |
title_full |
Data from: Population genomics of the killer whale indicates ecotype evolution in sympatry involving both selection and drift |
title_fullStr |
Data from: Population genomics of the killer whale indicates ecotype evolution in sympatry involving both selection and drift |
title_full_unstemmed |
Data from: Population genomics of the killer whale indicates ecotype evolution in sympatry involving both selection and drift |
title_sort |
data from: population genomics of the killer whale indicates ecotype evolution in sympatry involving both selection and drift |
publisher |
University of Liverpool |
publishDate |
2014 |
url |
https://datacat.liverpool.ac.uk/2092/ |
geographic |
Pacific |
geographic_facet |
Pacific |
genre |
Killer Whale Orca Orcinus orca Killer whale |
genre_facet |
Killer Whale Orca Orcinus orca Killer whale |
op_relation |
Moura, Andre E., Kenny, John G., Chaudhuri, Roy, Hughes, Margaret A., Welch, Andreanna, Reisinger, Ryan R., de Bruyn, P. J. Nico, Dahlheim, Marilyn E., Hall, Neil, Hoelzel, A. Rus and J. Welch, Andreanna (2014) Data from: Population genomics of the killer whale indicates ecotype evolution in sympatry involving both selection and drift. [Data Collection] |
_version_ |
1766057411065413632 |