热带亚热带植物学报2026，Vol.34Issue(1)：53-62,10.DOI:10.11926/jtsb.4955
基于SSR标记的'天山菜茶'遗传多样性和亲缘关系分析
Analysis of Genetic Diversity and Relationship of'Tianshancaicha'Germplasm Resources Based on SSR Markers
摘要
Abstract
To explore the genetic diversity of Camellia sinensis'Tianshancaicha'germplasm resources,the genetic background of 143'Tianshancaicha'germplasm resources and their genetic relationship were analyzed by using SSR molecular marker technology,with local tea tree germplasm resources from other production areas in Ningde City as references.The results showed that 6 pairs of primers amplified a total of 55 alleles,with an average of 9.166;the average observed heterozygosity,expected heterozygosity,Shannon index and PIC were 0.649,0.779,1.870 and 0.742,respectively.The 143 germplasm resources from different production areas could be divided into 5 groups by genetic cluster analysis.Among them,112'Tianshancaicha'germplasm resources(including wild bitter tea trees in Jiaocheng)were scattered in different groups,indicating that they might share the same genetic background as'Mindencaicha'.The gene flow among different production areas was 2.225,suggesting that the gene exchange among'Mindencaicha'was relatively strong.So,there was a phenomenon of cross-inheritance among the'Tianshancaicha'germplasm resources,with significant genetic differences and rich genetic diversity,which can assist in the selection of core and excellent resources.关键词
茶树/SSR分子标记/遗传多样性/天山菜茶/聚类分析Key words
Camellia sinensis/SSR molecular marker/Genetic diversity/'Tianshancaicha'/Cluster analysis引用本文复制引用
赵翊暄,俞滢,梁子钧,陈强,陈言概,雷荣杰,张磊,杨如兴..基于SSR标记的'天山菜茶'遗传多样性和亲缘关系分析[J].热带亚热带植物学报,2026,34(1):53-62,10.基金项目
国家茶叶产业技术体系项目(CARS-19) （CARS-19）
农业基础性长期性科技工作国家作物种质资源数据中心观测监测(ZX01S140105) （ZX01S140105）
福建省农业科学院科技重点项目(KJZD20250017)资助 This work was supported by the National Tea Industry Technology System Project of China(Grant No.CARS-19),and the Project for Observation and Monitoring of the National Crop Germplasm Resources Data Center for Basic Long-term Scientific and Technological Work in Agriculture(Grant No.ZX01S140105),and the Project for Key Science and Technology of Fujian Academy of Agricultural Sciences(Grant No.KJZD20250017). （KJZD20250017）
