Welcome to Journal of Tea Science,Today is

Journal of Tea Science ›› 2018, Vol. 38 ›› Issue (1): 69-77.doi: 10.13305/j.cnki.jts.2018.01.007

Previous Articles     Next Articles

Genetic Diversity Analysis of Tea Plant in Baiyingshan Mountain of Yunnan

MAO Juan1, JIANG Hongjian2, LI Chongxing3, MA Jianqiang1,*, CHEN Liang1,*   

  1. 1. Key Laboratory of Tea Plant Biology and Resources Utilization, Ministry of Agriculture, Tea Research Institute of the Chinese Academy of Agricultural Sciences, Hangzhou 310008, China;
    2. Tea Administration Office of Lincang, Lincang 677000, China;
    3. Tea Research Institute of Lincang, Lincang 677000, China
  • Received:2017-04-05 Revised:2017-08-15 Online:2018-02-15 Published:2019-08-28

Abstract: Tea germplasms including Camellia sinensis var. assamica, wild and semi-wild C. taliensis, and interspecific hybrid populations of the aforesaid species, are widely distributed in Baiyingshan Mountain of Yunnan Province. In this study, a core set of SSR markers were employed to assess the genetic diversity of tea germplasms derived from Baiyingshan Mountain. The results showed that a total of 202 alleles were detected, and the average number of allele (A) per SSR was 6.73, and 0.6135 for the average of expected heterozygosity (HE), –0.1745 for the mean of inbreed coefficient (Fis). The polymorphic information content (PIC) and gene diversity (H) were estimated to be 0.5652 and 0.6112 on average, respectively. The regression curves of genetic parameters influenced by population size showed that it could reach an optimized coverage of genetic diversity as the sample size was higher than 40. Investigation of the genetic diversity of tea germplasms in Baiyingshan Mountain was of vital importance for protection and utilization of these resources in the future.

Key words: Baiyingshan, tea plant, SSR, genetic diversity

CLC Number: