文献类型：期刊文献

英文题名：Genetic Diversity, Population Genetic Structure and Protection Strategies for HoupoA << a officinalis (Magnoliaceae), an Endangered Chinese Medical Plant

作者：Yang Xu[1,2] Yang Zhiling[2] Li Huogen[1]

第一作者：Yang Xu;杨旭

通信作者：Li, HG[1]

机构：[1]Nanjing Forestry Univ, Minist Educ, Key Lab Genet & Biotechnol, Nanjing 210037, Jiangsu, Peoples R China;[2]Chinese Acad Forestry, Res Inst Subtrop Forestry, Fuyang 311400, Zhejiang, Peoples R China

年份：2018

卷号：61

期号：3

起止页码：159-168

外文期刊名：JOURNAL OF PLANT BIOLOGY

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000434177400006)】；

基金：The research has been financially supported by the National Natural Science Foundation of China (31270585).

语种：英文

外文关键词：EST-SSR; Genetic structrue; Houpoea officinalis; Protection strategies

摘要：HoupoA << a officinalis is a traditional Chinese medical plant, which has significantly declined in the past decades because of human influence and habitat fragmentation. Twelve expressed sequence tag SSR (EST-SSR) markers developed from the EST sequence of H. officinalis were used to analyse the genetic diversity and structure of fourteen natural populations. The results indicated that moderate genetic diversity and high genetic differentiation existed in this plant (Ho = 0.600, Fst = 0.327). STRUCTURE and UPGMA analyses showed that H. officinalis populations could be divided into 3 different groups, and the west group had higher genetic diversity than the central and east groups. The historical migration rates among the groups were low and unsymmetrical, and there was no significant correlation between Nei's genetic distance and geographic distance. According to the genetic consequences, conservation strategies (in situ or ex situ, artificial pollination) should be carried out in all populations to preserve genetic diversity.