Out of Africa: the slow train to australasia.
None: 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 Atl...
Published in: | Systematic Biology |
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Systematic biology
2004
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Online Access: | http://academic.oup.com/sysbio/article-pdf/53/1/18/24197540/53-1-18.pdf https://academic.oup.com/sysbio/article-pdf/53/1/18/24197540/53-1-18.pdf https://www.jstor.org/stable/pdfplus/4135390.pdf https://doi.org/10.1080/10635150490264671 https://academic.oup.com/sysbio/article/53/1/18/2842872 http://www.ncbi.nlm.nih.gov/pubmed/14965897 https://academic.microsoft.com/#/detail/2115008333 |
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fttriple:oai:gotriple.eu:50|dedup_wf_001::6108a57bdf426c93fed13f6c79823308 2023-05-15T13:22:31+02:00 Out of Africa: the slow train to australasia. Jonathan M. Waters Michael S. Roy 2004-02-01 http://academic.oup.com/sysbio/article-pdf/53/1/18/24197540/53-1-18.pdf https://academic.oup.com/sysbio/article-pdf/53/1/18/24197540/53-1-18.pdf https://www.jstor.org/stable/pdfplus/4135390.pdf https://doi.org/10.1080/10635150490264671 https://academic.oup.com/sysbio/article/53/1/18/2842872 http://www.ncbi.nlm.nih.gov/pubmed/14965897 https://academic.microsoft.com/#/detail/2115008333 undefined unknown Systematic biology http://academic.oup.com/sysbio/article-pdf/53/1/18/24197540/53-1-18.pdf https://academic.oup.com/sysbio/article-pdf/53/1/18/24197540/53-1-18.pdf https://www.jstor.org/stable/pdfplus/4135390.pdf https://dx.doi.org/10.1080/10635150490264671 http://dx.doi.org/10.1080/10635150490264671 https://academic.oup.com/sysbio/article/53/1/18/2842872 http://www.ncbi.nlm.nih.gov/pubmed/14965897 https://academic.microsoft.com/#/detail/2115008333 undefined 14965897 10.1080/10635150490264671 2115008333 10|opendoar____::eda80a3d5b344bc40f3bc04f65b7a357 10|openaire____::55045bd2a65019fd8e6741a755395c8c 10|openaire____::081b82f96300b6a6e3d282bad31cb6e2 10|issn___print::3fd34a0452e3795cfdf1db35c5400fc6 10|openaire____::8ac8380272269217cb09a928c8caa993 10|openaire____::5f532a3fc4f1ea403f37070f59a7a53a 10|openaire____::9e3be59865b2c1c335d32dae2fe7b254 10|opendoar____::8b6dd7db9af49e67306feb59a8bdc52c 10|openaire____::806360c771262b4d6770e7cdf04b5c5a envir geo Journal Article https://vocabularies.coar-repositories.org/resource_types/c_6501/ 2004 fttriple https://doi.org/10.1080/10635150490264671 2023-01-22T17:17:15Z None: 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. Article in Journal/Newspaper Amsterdam Island Unknown Pacific Indian New Zealand St. Helena ENVELOPE(8.575,8.575,63.621,63.621) Systematic Biology 53 1 18 24 |
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envir geo |
spellingShingle |
envir geo Jonathan M. Waters Michael S. Roy Out of Africa: the slow train to australasia. |
topic_facet |
envir geo |
description |
None: 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. |
format |
Article in Journal/Newspaper |
author |
Jonathan M. Waters Michael S. Roy |
author_facet |
Jonathan M. Waters Michael S. Roy |
author_sort |
Jonathan M. Waters |
title |
Out of Africa: the slow train to australasia. |
title_short |
Out of Africa: the slow train to australasia. |
title_full |
Out of Africa: the slow train to australasia. |
title_fullStr |
Out of Africa: the slow train to australasia. |
title_full_unstemmed |
Out of Africa: the slow train to australasia. |
title_sort |
out of africa: the slow train to australasia. |
publisher |
Systematic biology |
publishDate |
2004 |
url |
http://academic.oup.com/sysbio/article-pdf/53/1/18/24197540/53-1-18.pdf https://academic.oup.com/sysbio/article-pdf/53/1/18/24197540/53-1-18.pdf https://www.jstor.org/stable/pdfplus/4135390.pdf https://doi.org/10.1080/10635150490264671 https://academic.oup.com/sysbio/article/53/1/18/2842872 http://www.ncbi.nlm.nih.gov/pubmed/14965897 https://academic.microsoft.com/#/detail/2115008333 |
long_lat |
ENVELOPE(8.575,8.575,63.621,63.621) |
geographic |
Pacific Indian New Zealand St. Helena |
geographic_facet |
Pacific Indian New Zealand St. Helena |
genre |
Amsterdam Island |
genre_facet |
Amsterdam Island |
op_source |
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Systematic Biology |
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