• 医学文献
  • 知识库
  • 评价分析
  • 中外期刊
  • 学位
  • 会议
  • 专利
  • 成果
  • 标准
  • 法规
  • 临床诊疗知识库
  • 中医药知识库
  • 机构
  • 作者
论文 期刊
高级检索

检索历史 清除

Genetic diversity and population structure of Amorphophallus albus, a plant species with extremely small populations (PSESP) endemic to dry-hot valley of Jinsha River.

摘要:

<AbstractText Label="BACKGROUND">Amorphophallus albus P. Y. Liu &amp; J. F. Chen (Araceae) is a plant species with extremely small populations (PSESP) and an important economic crop endemic to dry-hot valleys along the Jinsha River. In order to gain information for sustaining the development and conservation of A. albus, we studied the genetic diversity and population structure of this species using microsatellite markers (SSR). In this study, we analysed 364 individuals belonging to 24 populations, including four wild populations and three ex-situ cultivated populations, collected in the provinces Yunnan, Sichuan and Hubei.</AbstractText><AbstractText Label="RESULTS">The population genetic analyses indicated that A. albus possesses moderate genetic diversity with the percentage of polymorphic loci (PPL) from 69.23 to 100%, an expected heterozygosity (He) of 0.504 and an average Shannon's Information Index (I) 0.912. Analysis of molecular variance (AMOVA) indicated that most of the variance (71%) resided within populations and the estimated gene flow (Nm) was 0.61. The results of UPGMA cluster tree, STRUCTURE analyses together with the Mantel test (R<sup>2</sup> = 0.352, P &lt; 0.01) indicated that geographically closely located populations are clustered together with some exceptions.</AbstractText><AbstractText Label="CONCLUSIONS">Our results showed that A. albus still possesses moderate genetic variation in most of the studied populations, and for now, most cultivated populations were naturally distributed but still some reintroduction exists. For sustaining the present genetic variation, some protections measures are necessary for the wild populations and also for the cultivated ones with high genetic diversity.</AbstractText>

更多
作者: Rong,Tang [1,2,3] ; Erxi,Liu [4] ; Yazhou,Zhang [2,3] ; Johann,Schinnerl [5] ; Weibang,Sun [1,2] ; Gao,Chen [6,7]
作者单位: Yunnan Key Laboratory for Integrative Conservation of Plant Species with Extremely Small Populations, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, China. [1] CAS Key Laboratory for Plant Biodiversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, China. [2] University of Chinese Academy of Science, Beijing, 100049, China. [3] Enshi Autonomous Prefecture Academy of Agricultural Sciences, Enshi, 445000, China. [4] Department of Botany and Biodiversity Research, University of Vienna, Vienna, Austria. [5] Yunnan Key Laboratory for Integrative Conservation of Plant Species with Extremely Small Populations, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, China. chen_gao@mail.kib.ac.cn. [6] CAS Key Laboratory for Plant Biodiversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, China. chen_gao@mail.kib.ac.cn. [7]
期刊:
《BMC genetics》 2020年21卷1期102页
DOI: 10.1186/s12863-020-00910-x
PMID: 32919456
发布时间: 2021-04-05
翻译满意度评价:
提交
  • 浏览:14

相似文献

  • 中文期刊
  • 外文期刊
  • 学位论文
  • 会议论文

加载中!

加载中!

加载中!

加载中!

特别提示:本网站仅提供医学学术资源服务,不销售任何药品和器械,有关药品和器械的销售信息,请查阅其他网站。

充值 订阅 收藏 移动端 使用
帮助