茶树品种紫娟及其诱变后代生化成分分析和聚类分析  

Biochemical components analysis and cluster analysis of tea variety Zijuan and its mutagenesis progeny

作　　者：仝佳音 田易萍[1] 邓少春[1] 杨方慧 张艳梅[1] 陈春林[1] 汤海昆 TONG Jia-yin;TIAN Yi-ping;DENG Shao-chun;YANG Fang-hui;ZHANG Yan-mei;CHEN Chun-lin;TANG hai-kun(Tea Research Institute,Yunnan Academy of Agricultural Sciences,Kunming 650205,China)

机构地区：[1]云南省农业科学院茶叶研究所,昆明650205

出　　处：《湖北农业科学》2022年第11期119-122,共4页Hubei Agricultural Sciences

基　　金：云南省科技厅项目“特异茶树‘紫娟’诱变后代的多样性研究”(2018FD130)。

摘　　要：对茶树品种紫娟及其诱变后代进行生化成分分析和聚类分析。结果表明,春季、夏季紫娟及其诱变后代的生化成分含量各有差异,其中两季变异系数最大的是花青素含量,都达70%以上。通过微卫星标记进行遗传多样性分析,结果表明,紫娟与诱变后代相比,其遗传距离都大于0.7,其中亚群诱变后代ZJ07和ZJ15之间的遗传距离最大达0.9以上。生化成分分析和聚类分析都表明,紫娟及其诱变后代遗传多样性较丰富,特别是茶多酚的含量及变异系数,其中春茶的变异系数为13.99%,夏茶的变异系数较低,为6.57%,因此可以得出,样本间的遗传距离越大,茶多酚的含量越高。Biochemical component analysis and cluster analysis of the new tea variety Zijuan and its mutagenesis progeny were conducted. The results showed that the biochemical components of Zijuan tea in spring and summer were different,among which the largest coefficient of variation in the two seasons was anthocyanin content,both reaching more than 70%. By microsatellite markers for genetic diversity analysis,the results showed that compared with mutagenesis progeny,the genetic distance of Zijuan was more than0.7,and the genetic distance between ZJ07 and ZJ15,the progeny of subcohort mutation,was more than 0.9. The results of biochemical component analysis and cluster analysis showed that Zijuan and its mutagenic progeny were rich in genetic diversity,especially in the content and coefficient of variation of tea polyphenols. The coefficient of variation of spring tea was 13.99%,and that of summer tea was 6.57%. Therefore,it can be concluded that the greater the genetic distance between samples,the higher the content of tea polyphenols.

关 键 词：茶树品种紫娟 遗传距离 生化成分 遗传多样性 

分 类 号：S571.1[农业科学—茶叶生产加工]