作　　者： ; ; ;

机构地区： 青岛农业大学农学与植物保护学院茶叶研究所

出　　处： 《青岛农业大学学报（自然科学版）》 2012年第1期18-25,共8页

摘　　要： 通过对130份‘黄山种’自然杂交后代种质材料的生化多样性进行鉴定,为杂交育种亲本筛选与新品种选育奠定基础。结果发现,‘黄山种’自然杂交后代存在丰富的变异,平均遗传多样性指数达到1.99,平均变异系数达到30.5%,通过多变量的主成分分析,主成分PC1、PC2、PC3、PC4代表了茶树生化成分多样性的84.86%的信息。基于生化成分,把130份资源聚类划分为3个类群。第1类群为红绿茶兼制的资源,第2类群和第3类群大部分为适制绿茶的资源。并从中筛选出一批生化成分特异的资源。‘黄山种’自引种至山东以来,其自然杂交后代的生化成分发生了丰富的变异,其中存在大量高氨基酸、茶氨酸、茶多酚、咖啡碱、儿茶素等单株。 The biochemical diversity of the 130 natural hybrid progenies of Camellia sinensis Huangshanzhong were identified for the foundation of crossbreeding parent screening and the new variety selective breeding.The results showed that the biochemical diversity and variation were high in the natural hybrid progenies of Camellia sinensis Huangshanzhong.The average diversity index and coefficient of variation were 1.99 and 30.5%,respectively.In principal component analysis,the first 4 principal components represented 84.86% of the biochemical diversity.Based on the biochemical data,130 germplasms were clustered into 3 groups.The germplasms in the first group suited to be processed black tea and green tea.The germplasms in the second and third group suited to be processed green tea.A set of special germplasms on some biochemical composition were selected.Since Camellia sinensis Huangshanzhong was introduced into Shandong province,the biochemical components of its natural hybrid progenies have had great variation,with abundant amino acid,theanine,tea polyphenols,cafeine and catechins in some individual plant,to screen outstanding plants out of them can be used for tea breeding.

关 键 词： 黄山群体种 茶树 种质资源 生化成分 多样性

领　　域： [农业科学] [农业科学]