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Coalescent Modelling Suggests Recent Secondary-Contact of Cryptic Penguin Species

Molecular genetic analyses present powerful tools for elucidating demographic and biogeographic histories of taxa. Here we present genetic evidence showing a dynamic history for two cryptic lineages within Eudyptula, the world's smallest penguin. Specifically, we use a suite of genetic markers...

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Detalles Bibliográficos
Autores principales: Grosser, Stefanie, Burridge, Christopher P., Peucker, Amanda J., Waters, Jonathan M.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Public Library of Science 2015
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4682933/
https://www.ncbi.nlm.nih.gov/pubmed/26675310
http://dx.doi.org/10.1371/journal.pone.0144966
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author Grosser, Stefanie
Burridge, Christopher P.
Peucker, Amanda J.
Waters, Jonathan M.
author_facet Grosser, Stefanie
Burridge, Christopher P.
Peucker, Amanda J.
Waters, Jonathan M.
author_sort Grosser, Stefanie
collection PubMed
description Molecular genetic analyses present powerful tools for elucidating demographic and biogeographic histories of taxa. Here we present genetic evidence showing a dynamic history for two cryptic lineages within Eudyptula, the world's smallest penguin. Specifically, we use a suite of genetic markers to reveal that two congeneric taxa ('Australia' and 'New Zealand') co-occur in southern New Zealand, with only low levels of hybridization. Coalescent modelling suggests that the Australian little penguin only recently expanded into southern New Zealand. Analyses conducted under time-dependent molecular evolutionary rates lend support to the hypothesis of recent anthropogenic turnover, consistent with shifts detected in several other New Zealand coastal vertebrate taxa. This apparent turnover event highlights the dynamic nature of the region’s coastal ecosystem.
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spelling pubmed-46829332015-12-31 Coalescent Modelling Suggests Recent Secondary-Contact of Cryptic Penguin Species Grosser, Stefanie Burridge, Christopher P. Peucker, Amanda J. Waters, Jonathan M. PLoS One Research Article Molecular genetic analyses present powerful tools for elucidating demographic and biogeographic histories of taxa. Here we present genetic evidence showing a dynamic history for two cryptic lineages within Eudyptula, the world's smallest penguin. Specifically, we use a suite of genetic markers to reveal that two congeneric taxa ('Australia' and 'New Zealand') co-occur in southern New Zealand, with only low levels of hybridization. Coalescent modelling suggests that the Australian little penguin only recently expanded into southern New Zealand. Analyses conducted under time-dependent molecular evolutionary rates lend support to the hypothesis of recent anthropogenic turnover, consistent with shifts detected in several other New Zealand coastal vertebrate taxa. This apparent turnover event highlights the dynamic nature of the region’s coastal ecosystem. Public Library of Science 2015-12-14 /pmc/articles/PMC4682933/ /pubmed/26675310 http://dx.doi.org/10.1371/journal.pone.0144966 Text en © 2015 Grosser et al http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited.
spellingShingle Research Article
Grosser, Stefanie
Burridge, Christopher P.
Peucker, Amanda J.
Waters, Jonathan M.
Coalescent Modelling Suggests Recent Secondary-Contact of Cryptic Penguin Species
title Coalescent Modelling Suggests Recent Secondary-Contact of Cryptic Penguin Species
title_full Coalescent Modelling Suggests Recent Secondary-Contact of Cryptic Penguin Species
title_fullStr Coalescent Modelling Suggests Recent Secondary-Contact of Cryptic Penguin Species
title_full_unstemmed Coalescent Modelling Suggests Recent Secondary-Contact of Cryptic Penguin Species
title_short Coalescent Modelling Suggests Recent Secondary-Contact of Cryptic Penguin Species
title_sort coalescent modelling suggests recent secondary-contact of cryptic penguin species
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4682933/
https://www.ncbi.nlm.nih.gov/pubmed/26675310
http://dx.doi.org/10.1371/journal.pone.0144966
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