茶叶科学2018，Vol.38Issue(1)：69-77,9.
云南白莺山地区茶树遗传多样性研究
Genetic Diversity Analysis of Tea Plant in Baiyingshan Mountain of Yunnan
摘要
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.关键词
白莺山/茶树/SSR/遗传多样性Key words
Baiyingshan/tea plant/SSR/genetic diversity分类
农业科技引用本文复制引用
毛娟,江鸿键,李崇兴,马建强,陈亮..云南白莺山地区茶树遗传多样性研究[J].茶叶科学,2018,38(1):69-77,9.基金项目
国家自然科学基金(No.31500568)、国家茶叶产业技术体系(CARS-023)、中国农业科学院科技创新工程(CAAS-ASTIP-2017-TRICAAS) （No.31500568）
