Great genetic differentiation among populations of Meconopsis integrifolia and its implication for plant speciation in the Qinghai-Tibetan Plateau.

The complex tectonic events and climatic oscillations in the Qinghai-Tibetan Plateau (QTP), the largest and highest plateau in the world, are thought to have had great effects on the evolutionary history of the native plants. Of great interest is to investigate plant population genetic divergence in...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Fu-Sheng Yang, Ai-Li Qin, Yu-Fei Li, Xiao-Quan Wang
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2012
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/55699353eb7148b39acd9a36cce90303
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:55699353eb7148b39acd9a36cce90303
record_format	dspace
spelling	oai:doaj.org-article:55699353eb7148b39acd9a36cce903032021-11-18T07:19:07ZGreat genetic differentiation among populations of Meconopsis integrifolia and its implication for plant speciation in the Qinghai-Tibetan Plateau.1932-620310.1371/journal.pone.0037196https://doaj.org/article/55699353eb7148b39acd9a36cce903032012-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/22590654/pdf/?tool=EBIhttps://doaj.org/toc/1932-6203The complex tectonic events and climatic oscillations in the Qinghai-Tibetan Plateau (QTP), the largest and highest plateau in the world, are thought to have had great effects on the evolutionary history of the native plants. Of great interest is to investigate plant population genetic divergence in the QTP and its correlation with the geologic and climatic changes. We conducted a range-wide phylogeographical analysis of M. integrifolia based on the chloroplast DNA (cpDNA) trnL-trnF and trnfM-trnS regions, and defined 26 haplotypes that were phylogenetically divided into six clades dated to the late Tertiary. The six clades correspond, respectively, to highly differentiated population groups that do not overlap in geographic distribution, implying that the mountain ranges acting as corridors or barriers greatly affected the evolutionary history of the QTP plants. The older clade of M. integrifolia only occurs in the southwest of the species' range, whereas the distributions of younger clades extend northeastward in the eastern QTP, suggesting that climatic divergence resulting from the uplift of the QTP triggered the initial divergence of M. integrifolia native to the plateau. Also, the nrDNA ITS region was used to clarify the unexpected phylogenetic relationships of cpDNA haplotypes between M. integrifolia and M. betonicifolia. The topological incongruence between the two phylogenies suggests an ancestral hybridization between the two species. Our study indicates that geographic isolation and hybridization are two important mechanisms responsible for the population differentiation and speciation of Meconopsis, a species-rich genus with complex polyploids.Fu-Sheng YangAi-Li QinYu-Fei LiXiao-Quan WangPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 7, Iss 5, p e37196 (2012)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Fu-Sheng Yang Ai-Li Qin Yu-Fei Li Xiao-Quan Wang Great genetic differentiation among populations of Meconopsis integrifolia and its implication for plant speciation in the Qinghai-Tibetan Plateau.
description	The complex tectonic events and climatic oscillations in the Qinghai-Tibetan Plateau (QTP), the largest and highest plateau in the world, are thought to have had great effects on the evolutionary history of the native plants. Of great interest is to investigate plant population genetic divergence in the QTP and its correlation with the geologic and climatic changes. We conducted a range-wide phylogeographical analysis of M. integrifolia based on the chloroplast DNA (cpDNA) trnL-trnF and trnfM-trnS regions, and defined 26 haplotypes that were phylogenetically divided into six clades dated to the late Tertiary. The six clades correspond, respectively, to highly differentiated population groups that do not overlap in geographic distribution, implying that the mountain ranges acting as corridors or barriers greatly affected the evolutionary history of the QTP plants. The older clade of M. integrifolia only occurs in the southwest of the species' range, whereas the distributions of younger clades extend northeastward in the eastern QTP, suggesting that climatic divergence resulting from the uplift of the QTP triggered the initial divergence of M. integrifolia native to the plateau. Also, the nrDNA ITS region was used to clarify the unexpected phylogenetic relationships of cpDNA haplotypes between M. integrifolia and M. betonicifolia. The topological incongruence between the two phylogenies suggests an ancestral hybridization between the two species. Our study indicates that geographic isolation and hybridization are two important mechanisms responsible for the population differentiation and speciation of Meconopsis, a species-rich genus with complex polyploids.
format	article
author	Fu-Sheng Yang Ai-Li Qin Yu-Fei Li Xiao-Quan Wang
author_facet	Fu-Sheng Yang Ai-Li Qin Yu-Fei Li Xiao-Quan Wang
author_sort	Fu-Sheng Yang
title	Great genetic differentiation among populations of Meconopsis integrifolia and its implication for plant speciation in the Qinghai-Tibetan Plateau.
title_short	Great genetic differentiation among populations of Meconopsis integrifolia and its implication for plant speciation in the Qinghai-Tibetan Plateau.
title_full	Great genetic differentiation among populations of Meconopsis integrifolia and its implication for plant speciation in the Qinghai-Tibetan Plateau.
title_fullStr	Great genetic differentiation among populations of Meconopsis integrifolia and its implication for plant speciation in the Qinghai-Tibetan Plateau.
title_full_unstemmed	Great genetic differentiation among populations of Meconopsis integrifolia and its implication for plant speciation in the Qinghai-Tibetan Plateau.
title_sort	great genetic differentiation among populations of meconopsis integrifolia and its implication for plant speciation in the qinghai-tibetan plateau.
publisher	Public Library of Science (PLoS)
publishDate	2012
url	https://doaj.org/article/55699353eb7148b39acd9a36cce90303
work_keys_str_mv	AT fushengyang greatgeneticdifferentiationamongpopulationsofmeconopsisintegrifoliaanditsimplicationforplantspeciationintheqinghaitibetanplateau AT ailiqin greatgeneticdifferentiationamongpopulationsofmeconopsisintegrifoliaanditsimplicationforplantspeciationintheqinghaitibetanplateau AT yufeili greatgeneticdifferentiationamongpopulationsofmeconopsisintegrifoliaanditsimplicationforplantspeciationintheqinghaitibetanplateau AT xiaoquanwang greatgeneticdifferentiationamongpopulationsofmeconopsisintegrifoliaanditsimplicationforplantspeciationintheqinghaitibetanplateau
_version_	1718423595381686272

Great genetic differentiation among populations of Meconopsis integrifolia and its implication for plant speciation in the Qinghai-Tibetan Plateau.

Ejemplares similares