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题名: Determining the extent and direction of introgression between three spruce species based on molecular markers from three genomes with different rates of gene flow
作者: Wang, X; Lu, J; Yue, W; Li, L; Zou, JB; Li, XW; He, XD; Duan, BB; Liu, JQ(刘建全)
收录类别: SCIE ; BIOSIS
出版日期: 2016-06
刊名: PLANT SYSTEMATICS AND EVOLUTION
卷号: 302, 期号:6, 页码:691-701
出版者: SPRINGER
出版地: WIEN
英文摘要: Introgression frequently occurs between closely related plant species when there is incomplete reproductive isolation. However, few studies have been designed to examine the extent and direction of introgression from all three genomes, especially when they have different rates of gene flow. Conifers, in which chloroplast (cp), mitochondrial (mt) and nuclear (nr) genomes show contrasting rates of gene flow, provide a good model in which to carry out such a case study. Here we use data on sequence variation in 18 DNAs from three genomes for 311 individuals of 31 populations to investigate the extent and direction of introgressions between three spruce species in areas where they are sympatrically distributed. We found that one species seem to have introgressions derived from the other two species in areas of sympatric distribution; there were more introgressions from the maternally inherited mtDNA, which has the lowest rate of gene flow, and fewer introgressions from the bi-parentally inherited nrDNA. Further coalescent analysis of nrDNA population genetic data suggested that the species containing introgressions had experienced range expansion in the recent past while there was no such indication for the other two species. Our results support the hypotheses that introgressions occurred more frequently at genetic markers with lower rates of gene flow and that they usually took place from local species towards invading species that had undergone recent demographic expansion.
关键词: Conifer ; CpDNA ; Introgression ; MtDNA ; NrDNA ; Picea
作者部门: [Wang, Xi ; Lu, Jing ; Yue, Wei ; Li, Long ; Zou, Jiabin ; Li, Xiaowei ; He, Xiaodong ; Duan, Bingbing ; Liu, Jianquan] Lanzhou Univ, Sch Life Sci, State Key Lab Grassland Agroecosyst, Lanzhou 730000, Gansu, Peoples R China
通讯作者: Liu, JQ (reprint author), Lanzhou Univ, Sch Life Sci, State Key Lab Grassland Agroecosyst, Lanzhou 730000, Gansu, Peoples R China.
学科分类: Plant Sciences; Evolutionary Biology
文章类型: Article
所属项目编号: National Natural Science Foundation of China [30930072] ; Fundamental Research Funds for the Central Universities [lzujbky-2009-k05] ; International Collaboration 111 Projects of China
所属项目名称: 国家自然科学基金项目 ; 高等学校学科创新引智计划(111计划) ; 中央高校基本科研业务费专项资金
项目资助者: NSFC ; MOE ; SAFEA ; LZU
语种: 英语
DOI: 10.1007/s00606-016-1289-3
ISSN号: 0378-2697
WOS记录号: WOS:000376311400008
BIOSIS记录号: BCI:BCI201600578421
IR记录号: WOS:000376311400008
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内容类型: 期刊论文
URI标识: http://ir.lzu.edu.cn/handle/262010/182021
Appears in Collections:生命科学学院_期刊论文

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Recommended Citation:
Wang, X,Lu, J,Yue, W,et al. Determining the extent and direction of introgression between three spruce species based on molecular markers from three genomes with different rates of gene flow[J]. PLANT SYSTEMATICS AND EVOLUTION,2016,302(6):691-701.
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