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题名: Genetic diversity and structure of Munronia delavayi Franch. (Meliaceae), an endemic species in the dry-hot valley of Jinsha River, south-western China
作者: Jia, Jing1, 2; Wu, Hao1; Wang, Jin-Feng3; Gong, Xun1
刊名: GENETIC RESOURCES AND CROP EVOLUTION
出版日期: 2014-10-01
卷号: 61, 期号:7, 页码:1381-1395
关键词: Conservation genetics ; Dry-hot valley ; Hydropower stations ; Mitochondrial, chloroplast and nuclear genomes ; Munronia delavayi
学科分类: Agriculture ; Plant Sciences
DOI: 10.1007/s10722-014-0120-7
通讯作者: Gong,X (reprint author),Chinese Acad Sci,Kunming Inst Bot,Key Lab Plant Divers & Biogeog East Asia,132 Lanhei Rd,Kunming 650201,Peoples R China. ; gongxun@mail.kib.ac.cn
文章类型: Article
英文摘要: Munronia delavayi Franch. (Meliaceae) is a vulnerable perennial species that is narrowly distributed and endemic to the dry-hot valley of the middle/lower Jinsha River. However, 12 hydropower stations are currently scheduled to be built in the middle and lower Jinsha River drainage and their distribution overlaps with the range of M. delavayi. The construction of these hydropower stations will cause flooding of the adjacent habitats that support M. delavayi and will change the local ecological environment, which may result in a new and dangerous situation for the survival of this species. Our aim was to evaluate the population structure and propose the most suitable conservation strategy for M. delavayi to support its adaptive potential. In this study, we collected 70 individuals from seven populations that covered most of the geographic range along the Jinsha River and investigated the population diversity, genetic structure and demographic history of this species by analyzing the variations in one mitochondrial marker (18sf-5sr), two non-coding chloroplast DNA regions (trnT-trnL, trnS-trnG), and one nuclear DNA marker (Gs687f-994r). As a result, three mitotypes, nine chlorotypes and six haplotypes with high genetic diversity (H-T = 0.580, 0.774 and 0.740) were detected based on mtDNA, cpDNA and nDNA and a strong genetic structure (F-ST = 0.855 and 0.545) was detected based on cpDNA and nDNA. Our study also indicated that habitat fragmentation and limited gene flow may result in the genetic differentiation of this species and that the population distributed in Qiaojia, Yongshan and Panzhihua should be proactively protected based on the conservation genetic analysis.
类目[WOS]: Agronomy ; Plant Sciences
研究领域[WOS]: Agriculture ; Plant Sciences
关键词[WOS]: NOUELIA-INSIGNIS ASTERACEAE ; CHLOROPLAST DNA-SEQUENCES ; POPULATION-GROWTH ; TIBETAN PLATEAU ; STATISTICAL TESTS ; GORGES DAM ; CONSERVATION ; PLANT ; DIFFERENTIATION ; PHYLOGEOGRAPHY
收录类别: SCI
语种: 英语
WOS记录号: WOS:000343288500011
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内容类型: 期刊论文
URI标识: http://ir.kib.ac.cn/handle/151853/18420
Appears in Collections:资源植物与生物技术所级重点实验室_期刊论文

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作者单位: 1.Chinese Acad Sci, Kunming Inst Bot, Key Lab Plant Divers & Biogeog East Asia, Kunming 650201, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Zhejiang Forestry Acad, Hangzhou 310000, Zhejiang, Peoples R China

Recommended Citation:
Jia,Jing;Wu,Hao;Wang,Jin-Feng;Gong,Xun.Genetic diversity and structure of Munronia delavayi Franch. (Meliaceae), an endemic species in the dry-hot valley of Jinsha River, south-western China,GENETIC RESOURCES AND CROP EVOLUTION,2014,61(7):1381-1395
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