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Impacts of biogeographic history and marginal population genetics on species range limits: a case study of Liriodendron chinense

Species ranges are influenced by past climate oscillations, geographical constraints, and adaptive potential to colonize novel habitats at range limits. This study used Liriodendron chinense, an important temperate Asian tree species, as a model system to evaluate the roles of biogeographic history...

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Detalles Bibliográficos
Autores principales: Yang, Aihong, Dick, Christopher W., Yao, Xiaohong, Huang, Hongwen
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group 2016
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4861920/
https://www.ncbi.nlm.nih.gov/pubmed/27162176
http://dx.doi.org/10.1038/srep25632
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author Yang, Aihong
Dick, Christopher W.
Yao, Xiaohong
Huang, Hongwen
author_facet Yang, Aihong
Dick, Christopher W.
Yao, Xiaohong
Huang, Hongwen
author_sort Yang, Aihong
collection PubMed
description Species ranges are influenced by past climate oscillations, geographical constraints, and adaptive potential to colonize novel habitats at range limits. This study used Liriodendron chinense, an important temperate Asian tree species, as a model system to evaluate the roles of biogeographic history and marginal population genetics in determining range limits. We examined the demographic history and genetic diversity of 29 L. chinense populations using both chloroplast and nuclear microsatellite loci. Significant phylogeographic structure was recovered with haplotype clusters coinciding with major mountain regions. Long-term demographical stability was suggested by mismatch distribution analyses, neutrality tests, and ecological niche models (ENM) and suggested the existence of LGM refuges within mountain regions. Differences in genetic diversity between central and marginal populations were not significant for either genomic region. However, asymmetrical gene flow was inferred from central populations to marginal populations, which could potentially limit range adaptation and expansion of L. chinense.
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spelling pubmed-48619202016-05-20 Impacts of biogeographic history and marginal population genetics on species range limits: a case study of Liriodendron chinense Yang, Aihong Dick, Christopher W. Yao, Xiaohong Huang, Hongwen Sci Rep Article Species ranges are influenced by past climate oscillations, geographical constraints, and adaptive potential to colonize novel habitats at range limits. This study used Liriodendron chinense, an important temperate Asian tree species, as a model system to evaluate the roles of biogeographic history and marginal population genetics in determining range limits. We examined the demographic history and genetic diversity of 29 L. chinense populations using both chloroplast and nuclear microsatellite loci. Significant phylogeographic structure was recovered with haplotype clusters coinciding with major mountain regions. Long-term demographical stability was suggested by mismatch distribution analyses, neutrality tests, and ecological niche models (ENM) and suggested the existence of LGM refuges within mountain regions. Differences in genetic diversity between central and marginal populations were not significant for either genomic region. However, asymmetrical gene flow was inferred from central populations to marginal populations, which could potentially limit range adaptation and expansion of L. chinense. Nature Publishing Group 2016-05-10 /pmc/articles/PMC4861920/ /pubmed/27162176 http://dx.doi.org/10.1038/srep25632 Text en Copyright © 2016, Macmillan Publishers Limited http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/
spellingShingle Article
Yang, Aihong
Dick, Christopher W.
Yao, Xiaohong
Huang, Hongwen
Impacts of biogeographic history and marginal population genetics on species range limits: a case study of Liriodendron chinense
title Impacts of biogeographic history and marginal population genetics on species range limits: a case study of Liriodendron chinense
title_full Impacts of biogeographic history and marginal population genetics on species range limits: a case study of Liriodendron chinense
title_fullStr Impacts of biogeographic history and marginal population genetics on species range limits: a case study of Liriodendron chinense
title_full_unstemmed Impacts of biogeographic history and marginal population genetics on species range limits: a case study of Liriodendron chinense
title_short Impacts of biogeographic history and marginal population genetics on species range limits: a case study of Liriodendron chinense
title_sort impacts of biogeographic history and marginal population genetics on species range limits: a case study of liriodendron chinense
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4861920/
https://www.ncbi.nlm.nih.gov/pubmed/27162176
http://dx.doi.org/10.1038/srep25632
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