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Evolutionary Hotspots of Seed Plants in Subtropical China: A Comparison With Species Diversity Hotspots of Woody Seed Plants

Genetic diversity is a fundamental level of biodiversity. However, it is frequently neglected in conservation prioritization because intraspecific genetic diversity is difficult to measure at large scales. In this study, we synthesized population genetic or phylogeographic datasets of 33 seed plants...

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Autores principales: Fan, Dengmei, Huang, Jihong, Hu, Huili, Sun, Zhixia, Cheng, Shanmei, Kou, Yixuan, Zhang, Zhiyong
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Frontiers Media S.A. 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6109751/
https://www.ncbi.nlm.nih.gov/pubmed/30177954
http://dx.doi.org/10.3389/fgene.2018.00333
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author Fan, Dengmei
Huang, Jihong
Hu, Huili
Sun, Zhixia
Cheng, Shanmei
Kou, Yixuan
Zhang, Zhiyong
author_facet Fan, Dengmei
Huang, Jihong
Hu, Huili
Sun, Zhixia
Cheng, Shanmei
Kou, Yixuan
Zhang, Zhiyong
author_sort Fan, Dengmei
collection PubMed
description Genetic diversity is a fundamental level of biodiversity. However, it is frequently neglected in conservation prioritization because intraspecific genetic diversity is difficult to measure at large scales. In this study, we synthesized population genetic or phylogeographic datasets of 33 seed plants in subtropical China into multi-species genetic landscapes. The genetic landscapes identified 18 evolutionary hotspots with high within-population genetic diversity (WGD), and among-population genetic diversity (AGD), or both. The western subtropical China is rich in AGD (possessing four major AGD hotspots), deserving a high conservation priority. We found that WGD was positively correlated with longitude, with most WGD hotspots locating in east subtropical China. The results showed that the locations of 12 of 18 evolutionary hotspots corresponded approximately to those of previously identified species diversity (SD) hotspots, however, a positive and significant correlation existed only between AGD and SD, not between WGD and SD. Therefore, spatial patterns of species richness in plants in subtropical China cannot generally be used as surrogate for their intraspecific diversity. This study identified multi-species evolutionary hotspots and correlated multi-species genetic diversity with SD across subtropical China for the first time, providing profound implications for the conservation of biodiversity in this important ecoregion.
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spelling pubmed-61097512018-09-03 Evolutionary Hotspots of Seed Plants in Subtropical China: A Comparison With Species Diversity Hotspots of Woody Seed Plants Fan, Dengmei Huang, Jihong Hu, Huili Sun, Zhixia Cheng, Shanmei Kou, Yixuan Zhang, Zhiyong Front Genet Genetics Genetic diversity is a fundamental level of biodiversity. However, it is frequently neglected in conservation prioritization because intraspecific genetic diversity is difficult to measure at large scales. In this study, we synthesized population genetic or phylogeographic datasets of 33 seed plants in subtropical China into multi-species genetic landscapes. The genetic landscapes identified 18 evolutionary hotspots with high within-population genetic diversity (WGD), and among-population genetic diversity (AGD), or both. The western subtropical China is rich in AGD (possessing four major AGD hotspots), deserving a high conservation priority. We found that WGD was positively correlated with longitude, with most WGD hotspots locating in east subtropical China. The results showed that the locations of 12 of 18 evolutionary hotspots corresponded approximately to those of previously identified species diversity (SD) hotspots, however, a positive and significant correlation existed only between AGD and SD, not between WGD and SD. Therefore, spatial patterns of species richness in plants in subtropical China cannot generally be used as surrogate for their intraspecific diversity. This study identified multi-species evolutionary hotspots and correlated multi-species genetic diversity with SD across subtropical China for the first time, providing profound implications for the conservation of biodiversity in this important ecoregion. Frontiers Media S.A. 2018-08-20 /pmc/articles/PMC6109751/ /pubmed/30177954 http://dx.doi.org/10.3389/fgene.2018.00333 Text en Copyright © 2018 Fan, Huang, Hu, Sun, Cheng, Kou and Zhang. http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
spellingShingle Genetics
Fan, Dengmei
Huang, Jihong
Hu, Huili
Sun, Zhixia
Cheng, Shanmei
Kou, Yixuan
Zhang, Zhiyong
Evolutionary Hotspots of Seed Plants in Subtropical China: A Comparison With Species Diversity Hotspots of Woody Seed Plants
title Evolutionary Hotspots of Seed Plants in Subtropical China: A Comparison With Species Diversity Hotspots of Woody Seed Plants
title_full Evolutionary Hotspots of Seed Plants in Subtropical China: A Comparison With Species Diversity Hotspots of Woody Seed Plants
title_fullStr Evolutionary Hotspots of Seed Plants in Subtropical China: A Comparison With Species Diversity Hotspots of Woody Seed Plants
title_full_unstemmed Evolutionary Hotspots of Seed Plants in Subtropical China: A Comparison With Species Diversity Hotspots of Woody Seed Plants
title_short Evolutionary Hotspots of Seed Plants in Subtropical China: A Comparison With Species Diversity Hotspots of Woody Seed Plants
title_sort evolutionary hotspots of seed plants in subtropical china: a comparison with species diversity hotspots of woody seed plants
topic Genetics
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6109751/
https://www.ncbi.nlm.nih.gov/pubmed/30177954
http://dx.doi.org/10.3389/fgene.2018.00333
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