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题名: Arctic plant origins and early formation of circumarctic distributions: a case study of the mountain sorrel, Oxyria digyna
作者: Wang, Q; Liu, JQ(刘建全); Allen, GA; Ma, YZ; Yue, W; Marr, KL; Abbott, RJ
收录类别: SCIE ; PubMed ; MEDLINE
出版日期: 2016-01
刊名: NEW PHYTOLOGIST
卷号: 209, 期号:1, 页码:343-353
出版者: WILEY
出版地: HOBOKEN
英文摘要: Many plant species comprising the present-day Arctic flora are thought to have originated in the high mountains of North America and Eurasia, migrated northwards as global temperatures fell during the late Tertiary period, and thereafter attained a circumarctic distribution. However, supporting evidence for this hypothesis that provides a temporal framework for the origin, spread and initial attainment of a circumarctic distribution by an arctic plant is currently lacking. Here we examined the origin and initial formation of a circumarctic distribution of the arctic mountain sorrel (Oxyria digyna) by conducting a phylogeographic analysis of plastid and nuclear gene DNA variation. We provide evidence for an origin of this species in the Qinghai-Tibet Plateau of southwestern China, followed by migration into Russia c. 11 million yr ago (Ma), eastwards into North America by c. 4 Ma, and westwards into Western Europe by c. 1.96 Ma. Thereafter, the species attained a circumarctic distribution by colonizing Greenland from both sides of the Atlantic Ocean. Following the arrival of the species in North America and Europe, population sizes appear to have increased and then stabilized there over the last 1 million yr. However, in Greenland a marked reduction followed by an expansion in population size is indicated to have occurred during the Pleistocene.
关键词: ancestral location ; arctic flora ; circumarctic distribution ; migration ; species origin
作者部门: [Wang, Qian ; Liu, Jianquan] Sichuan Univ, Coll Life Sci, Key Lab Bio Resources & Ecoenvironm, Chengdu 6100065, Peoples R China ; [Allen, Geraldine A.] Univ Victoria, Dept Biol, Victoria, BC V8W 2Y2, Canada ; [Ma, Yazhen ; Yue, Wei] Lanzhou Univ, Sch Life Sci, State Key Lab Grassland Agro Ecosyst, Lanzhou 730000, Peoples R China ; [Marr, Kendrick L.] Royal British Columbia Museum, Victoria, BC V8W 9W2, Canada ; [Abbott, Richard J.] Univ St Andrews, Sch Biol, St Andrews KY16 9TH, Fife, Scotland
通讯作者: Liu, JQ (reprint author), Sichuan Univ, Coll Life Sci, Key Lab Bio Resources & Ecoenvironm, Chengdu 6100065, Peoples R China.
学科分类: Plant Sciences
文章类型: Article
所属项目编号: John and Joan Walton Innovation Fund ; National Key Project for Basic Research [2014CB954100] ; National Natural Science Foundation of China [31300176] ; Sichuan Province Youth Science and Technology Innovation Team [2014TD003] ; Sichuan University ; Ministry of Science and Technology of China [2010DFA34610]
所属项目名称: 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
项目资助者: NSFC ; MOST
语种: 英语
DOI: 10.1111/nph.13568
ISSN号: 0028-646X
WOS记录号: WOS:000365393700034
PM记录号: 26197783
IR记录号: WOS:000365393700034
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内容类型: 期刊论文
URI标识: http://ir.lzu.edu.cn/handle/262010/181942
Appears in Collections:生命科学学院_期刊论文

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Recommended Citation:
Wang, Q,Liu, JQ,Allen, GA,et al. Arctic plant origins and early formation of circumarctic distributions: a case study of the mountain sorrel, Oxyria digyna[J]. NEW PHYTOLOGIST,2016,209(1):343-353.
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