Data from: Out of Africa: the slow train to Australasia
We used mitochondrial DNA (mtDNA) sequences to test biogeographic hypotheses for Patiriella exigua (Asterinidae), one of the world's most widespread coastal sea stars. This small intertidal species has an entirely benthic life history and yet occurs in southern temperate waters of the Atlantic,...
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ftdans:oai:easy.dans.knaw.nl:easy-dataset:109495 2023-07-02T03:29:33+02:00 Data from: Out of Africa: the slow train to Australasia Waters, Jonathan M. Roy, Michael S. Crandall, Keith 2018-07-18T23:41:21.000+02:00 http://nbn-resolving.org/urn:nbn:nl:ui:13-1r-c2fy https://easy.dans.knaw.nl/ui/datasets/id/easy-dataset:109495 unknown doi:10.5061/dryad.h2h253r/1 doi:10.5061/dryad.h2h253r/2 doi:10.1080/10635150490264671 http://nbn-resolving.org/urn:nbn:nl:ui:13-1r-c2fy doi:10.5061/dryad.h2h253r https://easy.dans.knaw.nl/ui/datasets/id/easy-dataset:109495 OPEN_ACCESS: The data are archived in Easy, they are accessible elsewhere through the DOI https://dans.knaw.nl/en/about/organisation-and-policy/legal-information/DANSLicence.pdf Life sciences medicine and health care 2018 ftdans https://doi.org/10.5061/dryad.h2h253r/110.5061/dryad.h2h253r/210.1080/1063515049026467110.5061/dryad.h2h253r 2023-06-13T13:31:26Z We used mitochondrial DNA (mtDNA) sequences to test biogeographic hypotheses for Patiriella exigua (Asterinidae), one of the world's most widespread coastal sea stars. This small intertidal species has an entirely benthic life history and yet occurs in southern temperate waters of the Atlantic, Indian, and Pacific oceans. Despite its abundance around southern Africa, southeastern Australia, and several oceanic islands, P. exigua is absent from the shores of Western Australia, New Zealand, and South America. Phylogenetic analysis of mtDNA sequences (cytochrome oxidase I, control region) indicates that South Africa houses an assemblage of P. exigua that is not monophyletic (P = 0.04), whereas Australian and Lord Howe Island specimens form an interior monophyletic group. The placement of the root in Africa and small genetic divergences between eastern African and Australian haplotypes strongly suggest Pleistocene dispersal eastward across the Indian Ocean. Dispersal was probably achieved by rafting on wood or macroalgae, which was facilitated by the West Wind Drift. Genetic data also support Pleistocene colonization of oceanic islands (Lord Howe Island, Amsterdam Island, St. Helena). Although many biogeographers have speculated about the role of long-distance rafting, this study is one of the first to provide convincing evidence. The marked phylogeographic structure evident across small geographic scales in Australia and South Africa indicates that gene flow among populations may be generally insufficient to prevent the local evolution of monophyly. We suggest that P. exigua may rely on passive mechanisms of dispersal. Other/Unknown Material Amsterdam Island Data Archiving and Networked Services (DANS): EASY (KNAW - Koninklijke Nederlandse Akademie van Wetenschappen) Indian New Zealand Pacific St. Helena ENVELOPE(8.575,8.575,63.621,63.621) |
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Open Polar |
collection |
Data Archiving and Networked Services (DANS): EASY (KNAW - Koninklijke Nederlandse Akademie van Wetenschappen) |
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ftdans |
language |
unknown |
topic |
Life sciences medicine and health care |
spellingShingle |
Life sciences medicine and health care Waters, Jonathan M. Roy, Michael S. Crandall, Keith Data from: Out of Africa: the slow train to Australasia |
topic_facet |
Life sciences medicine and health care |
description |
We used mitochondrial DNA (mtDNA) sequences to test biogeographic hypotheses for Patiriella exigua (Asterinidae), one of the world's most widespread coastal sea stars. This small intertidal species has an entirely benthic life history and yet occurs in southern temperate waters of the Atlantic, Indian, and Pacific oceans. Despite its abundance around southern Africa, southeastern Australia, and several oceanic islands, P. exigua is absent from the shores of Western Australia, New Zealand, and South America. Phylogenetic analysis of mtDNA sequences (cytochrome oxidase I, control region) indicates that South Africa houses an assemblage of P. exigua that is not monophyletic (P = 0.04), whereas Australian and Lord Howe Island specimens form an interior monophyletic group. The placement of the root in Africa and small genetic divergences between eastern African and Australian haplotypes strongly suggest Pleistocene dispersal eastward across the Indian Ocean. Dispersal was probably achieved by rafting on wood or macroalgae, which was facilitated by the West Wind Drift. Genetic data also support Pleistocene colonization of oceanic islands (Lord Howe Island, Amsterdam Island, St. Helena). Although many biogeographers have speculated about the role of long-distance rafting, this study is one of the first to provide convincing evidence. The marked phylogeographic structure evident across small geographic scales in Australia and South Africa indicates that gene flow among populations may be generally insufficient to prevent the local evolution of monophyly. We suggest that P. exigua may rely on passive mechanisms of dispersal. |
author |
Waters, Jonathan M. Roy, Michael S. Crandall, Keith |
author_facet |
Waters, Jonathan M. Roy, Michael S. Crandall, Keith |
author_sort |
Waters, Jonathan M. |
title |
Data from: Out of Africa: the slow train to Australasia |
title_short |
Data from: Out of Africa: the slow train to Australasia |
title_full |
Data from: Out of Africa: the slow train to Australasia |
title_fullStr |
Data from: Out of Africa: the slow train to Australasia |
title_full_unstemmed |
Data from: Out of Africa: the slow train to Australasia |
title_sort |
data from: out of africa: the slow train to australasia |
publishDate |
2018 |
url |
http://nbn-resolving.org/urn:nbn:nl:ui:13-1r-c2fy https://easy.dans.knaw.nl/ui/datasets/id/easy-dataset:109495 |
long_lat |
ENVELOPE(8.575,8.575,63.621,63.621) |
geographic |
Indian New Zealand Pacific St. Helena |
geographic_facet |
Indian New Zealand Pacific St. Helena |
genre |
Amsterdam Island |
genre_facet |
Amsterdam Island |
op_relation |
doi:10.5061/dryad.h2h253r/1 doi:10.5061/dryad.h2h253r/2 doi:10.1080/10635150490264671 http://nbn-resolving.org/urn:nbn:nl:ui:13-1r-c2fy doi:10.5061/dryad.h2h253r https://easy.dans.knaw.nl/ui/datasets/id/easy-dataset:109495 |
op_rights |
OPEN_ACCESS: The data are archived in Easy, they are accessible elsewhere through the DOI https://dans.knaw.nl/en/about/organisation-and-policy/legal-information/DANSLicence.pdf |
op_doi |
https://doi.org/10.5061/dryad.h2h253r/110.5061/dryad.h2h253r/210.1080/1063515049026467110.5061/dryad.h2h253r |
_version_ |
1770275162047905792 |