Laurasian migration explains Gondwanan disjunctions: Evidence from Malpighiaceae
Explanations for biogeographic disjunctions involving South America and Africa typically invoke vicariance of western Gondwanan biotas or long distance dispersal. These hypotheses are problematical because many groups originated and diversified well after the last known connection between Africa and...
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ftpubmed:oai:pubmedcentral.nih.gov:124489 2023-05-15T17:32:12+02:00 Laurasian migration explains Gondwanan disjunctions: Evidence from Malpighiaceae Davis, Charles C. Bell, Charles D. Mathews, Sarah Donoghue, Michael J. 2002-05-14 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC124489 http://www.ncbi.nlm.nih.gov/pubmed/11983870 https://doi.org/10.1073/pnas.102175899 en eng The National Academy of Sciences http://www.ncbi.nlm.nih.gov/pmc/articles/PMC124489 http://www.ncbi.nlm.nih.gov/pubmed/11983870 http://dx.doi.org/10.1073/pnas.102175899 Copyright © 2002, The National Academy of Sciences Biological Sciences Text 2002 ftpubmed https://doi.org/10.1073/pnas.102175899 2013-08-29T10:49:44Z Explanations for biogeographic disjunctions involving South America and Africa typically invoke vicariance of western Gondwanan biotas or long distance dispersal. These hypotheses are problematical because many groups originated and diversified well after the last known connection between Africa and South America (≈105 million years ago), and it is unlikely that “sweepstakes” dispersal accounts for many of these disjunctions. Phylogenetic analyses of the angiosperm clade Malpighiaceae, combined with fossil evidence and molecular divergence-time estimates, suggest an alternative hypothesis to account for such distributions. We propose that Malpighiaceae originated in northern South America, and that members of several clades repeatedly migrated into North America and subsequently moved via North Atlantic land connections into the Old World during episodes starting in the Eocene, when climates supported tropical forests. This Laurasian migration route may explain many other extant lineages that exhibit western Gondwanan distributions. Text North Atlantic PubMed Central (PMC) Proceedings of the National Academy of Sciences 99 10 6833 6837 |
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English |
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Biological Sciences |
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Biological Sciences Davis, Charles C. Bell, Charles D. Mathews, Sarah Donoghue, Michael J. Laurasian migration explains Gondwanan disjunctions: Evidence from Malpighiaceae |
topic_facet |
Biological Sciences |
description |
Explanations for biogeographic disjunctions involving South America and Africa typically invoke vicariance of western Gondwanan biotas or long distance dispersal. These hypotheses are problematical because many groups originated and diversified well after the last known connection between Africa and South America (≈105 million years ago), and it is unlikely that “sweepstakes” dispersal accounts for many of these disjunctions. Phylogenetic analyses of the angiosperm clade Malpighiaceae, combined with fossil evidence and molecular divergence-time estimates, suggest an alternative hypothesis to account for such distributions. We propose that Malpighiaceae originated in northern South America, and that members of several clades repeatedly migrated into North America and subsequently moved via North Atlantic land connections into the Old World during episodes starting in the Eocene, when climates supported tropical forests. This Laurasian migration route may explain many other extant lineages that exhibit western Gondwanan distributions. |
format |
Text |
author |
Davis, Charles C. Bell, Charles D. Mathews, Sarah Donoghue, Michael J. |
author_facet |
Davis, Charles C. Bell, Charles D. Mathews, Sarah Donoghue, Michael J. |
author_sort |
Davis, Charles C. |
title |
Laurasian migration explains Gondwanan disjunctions: Evidence from Malpighiaceae |
title_short |
Laurasian migration explains Gondwanan disjunctions: Evidence from Malpighiaceae |
title_full |
Laurasian migration explains Gondwanan disjunctions: Evidence from Malpighiaceae |
title_fullStr |
Laurasian migration explains Gondwanan disjunctions: Evidence from Malpighiaceae |
title_full_unstemmed |
Laurasian migration explains Gondwanan disjunctions: Evidence from Malpighiaceae |
title_sort |
laurasian migration explains gondwanan disjunctions: evidence from malpighiaceae |
publisher |
The National Academy of Sciences |
publishDate |
2002 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC124489 http://www.ncbi.nlm.nih.gov/pubmed/11983870 https://doi.org/10.1073/pnas.102175899 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC124489 http://www.ncbi.nlm.nih.gov/pubmed/11983870 http://dx.doi.org/10.1073/pnas.102175899 |
op_rights |
Copyright © 2002, The National Academy of Sciences |
op_doi |
https://doi.org/10.1073/pnas.102175899 |
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Proceedings of the National Academy of Sciences |
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99 |
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10 |
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6833 |
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6837 |
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1766130200249106432 |