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Genetic diversity and structure among natural populations of Mytilaria laosensis (Hamamelidaceae) revealed by microsatellite markers  ( EI收录)  

文献类型:期刊文献

英文题名:Genetic diversity and structure among natural populations of Mytilaria laosensis (Hamamelidaceae) revealed by microsatellite markers

作者:Yu, Niu[1] Yuan, Jie[2] Yin, Guangtian[1] Yang, Jinchang[1] Li, Rongsheng[1] Zou, Wentao[1]

第一作者:余纽

机构:[1] Key Laboratory of State Forestry Administration on Tropical Forestry Research, Research Institute of Tropical Forestry, Chinese Academy of Forestry, Guangzhou, 510520, China; [2] Forestry Investigation and Design Team, Loudi, China

年份:2018

卷号:67

期号:1

起止页码:93-98

外文期刊名:Silvae Genetica

收录:EI(收录号:20233114477369);Scopus(收录号:2-s2.0-85074671120)

语种:英文

外文关键词:Biodiversity - Biomarkers - Genes - Tropics

摘要:Mytilaria laosensis is a fast-growing tropical broadleaf tree that is extensively used for wood production and has significant ecological benefits. To investigate the genetic diversity and population structure of M. laosensis, eight major natural popu-lations in China were analyzed by using simple sequence repeat (SSR) markers. A total of 88 microsatellite-containing fragments were obtained by the method of magnetic bead enrichment, among which 26 pairs of SSR primers were scree-ned out and used to generate a total of 190 alleles among 152 individuals. The average of observed number of alleles, Shannon's information index and polymorphism information content per locus were 18.3, 1.1577 and 0.7759, respectively, implying a high level of genetic diversity in M. laosensis popu-lations. The variation within populations accounted for 81.74 % of total variation based on analysis of molecular variance. Clus-Ter analysis divided the eight populations into four groups, among which five populations from the southern parts of Guangxi province were classified as one major group. Mantel test showed that there was highly significant correlation bet-ween Euclidean genetic distance and geographic distance, suggesting that geographic isolation contribute to the high genetic diversity of M. laosensis. Together, these could provide support for the feasibility of exploration and utilization of M. laosensis in subtropical areas of East Asia including Jiangxi, Hunan and Fujian province of China. ? 2018 Niu Yu et al., published by Sciendo.

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