Contrasts between the phylogeographic patterns of chloroplast and nuclear DNA highlight a role for pollen-mediated gene flow in preventing population divergence in an East Asian temperate tree

doi:10.1016/j.ympev.2014.08.024

	Contrasts between the phylogeographic patterns of chloroplast and nuclear DNA highlight a role for pollen-mediated gene flow in preventing population divergence in an East Asian temperate tree
	Bai, Wei-Ning ; Wang, Wen-Ting ; Zhang, Da-Yong
	2014
发表期刊	MOLECULAR PHYLOGENETICS AND EVOLUTION
ISSN	1055-7903
卷号	81 页码:37-48
摘要	Plant phylogeographic studies in East Asia have provided support for the biogeographic hypothesis that the complex landforms and climate of this region have provided substantial opportunities for allopatric speciation. However, most of these studies have been based on maternally inherited chloroplast DNA (cpDNA) markers and were therefore unable to reveal the role of pollen-mediated gene flow in preventing population divergence. Here, we investigate the phylogeography of the Chinese walnut Juglans cathayensis, a temperate deciduous tree widely distributed across disjunct montane sites in subtropical China. We genotyped 19 populations using seven cpDNA fragments and ten nuclear microsatellite loci and modeled the ecological niche of J. cathayensis. CpDNA analysis identified a total of nine haplotypes, and each of the 19 sampled populations was fixed for a single haplotype, displaying a prominent phylogeographic structure. The results of ecological niche modeling indicated that J. cathayensis populations survived the last glaciation in situ, although they were probably more fragmented than today. In contrast, we detected a much weaker, but nonetheless clear, genetic structure based on nuclear microsatellite data. Our study demonstrates how extensive pollen flow can erase the genetic imprint of long-term refugial isolation in maternal lineages, effectively preventing population differentiation in temperate, particularly wind-pollinated, forest trees in subtropical China. (C) 2014 Elsevier Inc. All rights reserved.
关键词	Demographic history East Asia Ecological niche modeling Gene flow Isolation by distance juglans
学科领域	Biochemistry & Molecular Biology ; Evolutionary Biology ; Genetics & Heredity
DOI	10.1016/j.ympev.2014.08.024
收录类别	SCI
语种	英语
WOS关键词	2 REFUGE AREAS ; MOLECULAR PHYLOGEOGRAPHY ; LINEAGE DIVERGENCE ; NONCODING REGIONS ; MIGRATION RATES ; CLIMATE ; CHINA ; MITOCHONDRIAL ; SOFTWARE ; COALESCENT
WOS研究方向	Biochemistry & Molecular Biology ; Evolutionary Biology ; Genetics & Heredity
WOS记录号	WOS:000345953100005
出版者	ACADEMIC PRESS INC ELSEVIER SCIENCE
文献子类	Article
出版地	SAN DIEGO
EISSN	1095-9513
资助机构	National Natural Science Foundation of China [3112103, 41371073] ; Fundamental Research Funds for the Central Universities ; open project of State Key Laboratory of Earth Surface Processes and Resource Ecology
作者邮箱	baiwn@bnu.edu.cn ; zhangdy@bnu.edu.cn
引用统计	被引频次：62[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ibcas.ac.cn/handle/2S10CLM1/27190
专题	系统与进化植物学国家重点实验室
作者单位	1.[Bai, Wei-Ning 2.Wang, Wen-Ting 3.Beijing Normal Univ, Coll Life Sci, State Key Lab Earth Surface Proc & Resource Ecol, Beijing 100875, Peoples R China 4.Beijing Normal Univ, Coll Life Sci, Minist Educ, Key Lab Biodivers Sci & Ecol Engn, Beijing 100875, Peoples R China 5.Chinese Acad Sci, Inst Bot, State Key Lab Systemat & Evolutionary Bot, Beijing 100093, Peoples R China 6.Northwest Univ Nationalities, Sch Math & Comp Sci, Lanzhou 730030, Peoples R China
推荐引用方式 GB/T 7714	Bai, Wei-Ning,Wang, Wen-Ting,Zhang, Da-Yong. Contrasts between the phylogeographic patterns of chloroplast and nuclear DNA highlight a role for pollen-mediated gene flow in preventing population divergence in an East Asian temperate tree[J]. MOLECULAR PHYLOGENETICS AND EVOLUTION,2014,81:37-48.
APA	Bai, Wei-Ning,Wang, Wen-Ting,&Zhang, Da-Yong.(2014).Contrasts between the phylogeographic patterns of chloroplast and nuclear DNA highlight a role for pollen-mediated gene flow in preventing population divergence in an East Asian temperate tree.MOLECULAR PHYLOGENETICS AND EVOLUTION,81,37-48.
MLA	Bai, Wei-Ning,et al."Contrasts between the phylogeographic patterns of chloroplast and nuclear DNA highlight a role for pollen-mediated gene flow in preventing population divergence in an East Asian temperate tree".MOLECULAR PHYLOGENETICS AND EVOLUTION 81(2014):37-48.

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