兰州大学机构库 >生命科学学院
Distributional dynamics and interspecific gene flow in Picea likiangensis and P. wilsonii triggered by climate change on the Qinghai-Tibet Plateau
Sun, YS; Li, LL; Li, L; Zou, JB; Liu, JQ(刘建全); Liu, JQ (reprint author), Sichuan Univ, Coll Life Sci, Chengdu 610065, Peoples R China.
Indexed BySCIE
2015-03
Source PublicationJOURNAL OF BIOGEOGRAPHY
Volume42Issue:3Pages:475-484
PublisherWILEY
Publication PlaceHOBOKEN
AbstractAimTo address whether climate changes have altered the distributional ranges of cold-preferring conifer species, and whether this has influenced interspecific divergence. LocationQinghai-Tibet Plateau (QTP), Asia. MethodsWe obtained DNA sequences at 13 nuclear loci in 229 individuals collected from 32 populations across the range of two cold-preferring alpine species, Picea likiangensis and Picea wilsonii. Bayesian skyline plots (BSPs) were used to examine historical changes in effective population sizes. Species distributions were reconstructed based on presence-only data at 134 locations and climate variables from the WorldClim database, and the reconstructed distributions were compared with projected palaeodistributions at the Last Glacial Maximum (LGM, about 20ka). Four models of interspecific gene flow during the Pleistocene and Holocene were compared using approximate Bayesian computation (ABC). ResultsThe effective population sizes of P.likiangensis and P.wilsonii increased continuously from 5 to 0.2 Ma, but decreased after 0.2Ma. The distributional ranges during the LGM were wider than at present, confirming the trend of a recent decrease. However, the overlapping area became greater due to their shifted distributions, and these shifts altered the major direction of continuing interspecific gene flow. Main conclusionsThe early increase in the distributions of these two species might have been triggered by enlargements of the available cold habitats brought about by QTP uplift and Pleistocene glaciations. However, the distributional ranges decreased in response to climatic warming since the end of the largest glaciation. These distributional changes further retarded the process of differentiation by altering the pattern of gene flow. Our results shed light on the evolutionary complexity of alpine species in response to climate changes in this climate-sensitive biodiversity hotspot.
KeywordClimate change distributional shift effective population size gene flow population genetic data Qinghai-Tibet Plateau
Department[Sun, Yongshuai;
Liu, Jianquan] Sichuan Univ, Coll Life Sci, MOE Key Lab Bioresources & Ecoenvironm, Chengdu 610065, Peoples R China;
[Li, Lili;
Li, Long;
Zou, Jiabin;
Liu, Jianquan] Lanzhou Univ, Coll Life Sci, Lanzhou 730000, Peoples R China
Subject AreaEnvironmental Sciences & Ecology ; Physical Geography
Project NumberNational Key Project for Basic Research [2014CB954100] ; National Natural Science Foundation of China [31300559, 30930072] ; Sichuan University ; Ministry of Science and Technology of China [2010DFB63500]
Funding Project国家自然科学基金项目 ; 国家重点基础研究发展计划以及国家重大科学研究计划(973计划) ; 国家国际科技合作专项
Funding OrganizationNSFC ; MOST
DOI10.1111/jbi.12434
ISSN0305-0270
SubtypeArticle
Language英语
WOS IDWOS:000350559900006
First Inst
Citation statistics
Cited Times:15[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.lzu.edu.cn/handle/262010/115580
Collection生命科学学院
Corresponding AuthorLiu, JQ (reprint author), Sichuan Univ, Coll Life Sci, Chengdu 610065, Peoples R China.
Recommended Citation
GB/T 7714
Sun, YS,Li, LL,Li, L,et al. Distributional dynamics and interspecific gene flow in Picea likiangensis and P. wilsonii triggered by climate change on the Qinghai-Tibet Plateau[J]. JOURNAL OF BIOGEOGRAPHY,2015,42(3):475-484.
APA Sun, YS,Li, LL,Li, L,Zou, JB,Liu, JQ,&Liu, JQ .(2015).Distributional dynamics and interspecific gene flow in Picea likiangensis and P. wilsonii triggered by climate change on the Qinghai-Tibet Plateau.JOURNAL OF BIOGEOGRAPHY,42(3),475-484.
MLA Sun, YS,et al."Distributional dynamics and interspecific gene flow in Picea likiangensis and P. wilsonii triggered by climate change on the Qinghai-Tibet Plateau".JOURNAL OF BIOGEOGRAPHY 42.3(2015):475-484.
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