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Angiosperm phylogenetic diversity is lower in Africa than South America

Although originating from a common Gondwanan flora, the diversity and composition of the floras of Africa and South America have greatly diverged since continental breakup of Africa from South America now having much higher plant species richness. However, the phylogenetic diversity of the floras an...

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Autores principales: Qian, Hong, Kessler, Michael, Zhang, Jian, Jin, Yi, Soltis, Douglas E., Qian, Shenhua, Zhou, Yadong, Soltis, Pamela S.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Association for the Advancement of Science 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10651126/
https://www.ncbi.nlm.nih.gov/pubmed/37967173
http://dx.doi.org/10.1126/sciadv.adj1022
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author Qian, Hong
Kessler, Michael
Zhang, Jian
Jin, Yi
Soltis, Douglas E.
Qian, Shenhua
Zhou, Yadong
Soltis, Pamela S.
author_facet Qian, Hong
Kessler, Michael
Zhang, Jian
Jin, Yi
Soltis, Douglas E.
Qian, Shenhua
Zhou, Yadong
Soltis, Pamela S.
author_sort Qian, Hong
collection PubMed
description Although originating from a common Gondwanan flora, the diversity and composition of the floras of Africa and South America have greatly diverged since continental breakup of Africa from South America now having much higher plant species richness. However, the phylogenetic diversity of the floras and what this tells us about their evolution remained unexplored. We show that for a given species richness and considering land surface area, topography, and present-day climate, angiosperm phylogenetic diversity in South America is higher than in Africa. This relationship holds regardless of whether all climatically matched areas or only matched areas in tropical climates are considered. Phylogenetic diversity is high relative to species richness in refugial areas in Africa and in northwestern South America, once the gateway for immigration from the north. While species richness is strongly influenced by massive plant radiations in South America, we detect a pervasive influence of historical processes on the phylogenetic diversity of both the South American and African floras.
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spelling pubmed-106511262023-11-15 Angiosperm phylogenetic diversity is lower in Africa than South America Qian, Hong Kessler, Michael Zhang, Jian Jin, Yi Soltis, Douglas E. Qian, Shenhua Zhou, Yadong Soltis, Pamela S. Sci Adv Earth, Environmental, Ecological, and Space Sciences Although originating from a common Gondwanan flora, the diversity and composition of the floras of Africa and South America have greatly diverged since continental breakup of Africa from South America now having much higher plant species richness. However, the phylogenetic diversity of the floras and what this tells us about their evolution remained unexplored. We show that for a given species richness and considering land surface area, topography, and present-day climate, angiosperm phylogenetic diversity in South America is higher than in Africa. This relationship holds regardless of whether all climatically matched areas or only matched areas in tropical climates are considered. Phylogenetic diversity is high relative to species richness in refugial areas in Africa and in northwestern South America, once the gateway for immigration from the north. While species richness is strongly influenced by massive plant radiations in South America, we detect a pervasive influence of historical processes on the phylogenetic diversity of both the South American and African floras. American Association for the Advancement of Science 2023-11-15 /pmc/articles/PMC10651126/ /pubmed/37967173 http://dx.doi.org/10.1126/sciadv.adj1022 Text en Copyright © 2023 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works. Distributed under a Creative Commons Attribution License 4.0 (CC BY). https://creativecommons.org/licenses/by/4.0/This is an open-access article distributed under the terms of the Creative Commons Attribution license (https://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Earth, Environmental, Ecological, and Space Sciences
Qian, Hong
Kessler, Michael
Zhang, Jian
Jin, Yi
Soltis, Douglas E.
Qian, Shenhua
Zhou, Yadong
Soltis, Pamela S.
Angiosperm phylogenetic diversity is lower in Africa than South America
title Angiosperm phylogenetic diversity is lower in Africa than South America
title_full Angiosperm phylogenetic diversity is lower in Africa than South America
title_fullStr Angiosperm phylogenetic diversity is lower in Africa than South America
title_full_unstemmed Angiosperm phylogenetic diversity is lower in Africa than South America
title_short Angiosperm phylogenetic diversity is lower in Africa than South America
title_sort angiosperm phylogenetic diversity is lower in africa than south america
topic Earth, Environmental, Ecological, and Space Sciences
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10651126/
https://www.ncbi.nlm.nih.gov/pubmed/37967173
http://dx.doi.org/10.1126/sciadv.adj1022
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