山东农业科学2025，Vol.57Issue(5)：69-74,6.DOI:10.14083/j.issn.1001-4942.2025.05.008
基于SSR分子标记的泰安老茶树资源遗传多样性分析
Genetic Diversity Analysis of Old Tea Tree Resources in Taian Based on SSR Molecular Markers
摘要
Abstract
In order to explore the genetic diversity and population structure of Taian old tea tree re-sources,and to clarify the genetic background among them,214 old tea tree resources in Taian were used as research objects.The genetic diversity parameters of the old tea tree resources were calculated based on the re-sults of SSR molecular marker technology,and the genetic diversities and population structure were analyzed by AMOVA analysis,UPGMA clustering,and PCoA methods.The results showed that a total of 65 alleles were detected by 18 pairs of SSR primers,and the average number of SSR loci was 3.611.The genetic diversi-ty parameters showed that the average Shannon's information index of Taian old tea tree resources was 1.263,and the average polymorphism information content was 0.506.The result of UPGMA cluster analysis showed that the 214 old tea tree resources were clustered into three different groups.The result of AMOVA analysis showed that the genetic variation within the old tea tree population was higher than that between populations.The conclusions drawn in this study about the genetic background and population structure of Taian old tea tree resources could provide a scientific basis for evaluation of germplasm resources and breeding of new varieties of tea in the future.关键词
茶树/SSR标记/遗传多样性/群体结构Key words
Camellia sinensis/SSR marker/Genetic diversity/Population structure分类
园艺学与植物营养学引用本文复制引用
李相花,韩笑翀,鹿英,李涵宇,侯剑,孙衍鹏,韩晓阳..基于SSR分子标记的泰安老茶树资源遗传多样性分析[J].山东农业科学,2025,57(5):69-74,6.基金项目
泰安市科技创新重大专项(农业良种)(2022NYLZ08) （农业良种）
山东农业大学'一流学科'建设项目 （）
