| 丁帅涛1，程晓梅1，张 亚1，任华江1，2，江昌俊3，纪晓明1，2，胡 歆1，2.陕西古茶树种质资源表型性状遗传多样性研究[J].广东农业科学,2018,45(2):52-60 |
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陕西古茶树种质资源表型性状遗传多样性研究 |
| The research on phenotypic traits genetic diversity of the ancient tea germplasm resources in Shaanxi province |
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| DOI：10.16768/j.issn.1004-874X.2018.02.010 |
| 中文关键词: 古茶树种质资源 表型性状 相关性分析 主成分分析 聚类分析 遗传多样性 |
| 英文关键词: ancient tea germplasm resources phenotypic traits correlation analysis principal compoent
analysis clustering analysis genetic diversity |
| 基金项目:陕西茶树种质资源普查项目（SXHCCG004） |
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| 摘要点击次数: 2314 |
| 全文下载次数: 978 |
| 中文摘要: |
| 古茶树种质资源研究和利用是我国茶树种质资源研究的新课题。为鉴定和评价陕西38 份古茶
树种质资源表型性状遗传多样性，利用相关性分析、主成分分析、聚类分析方法对其表型性状遗传多样性
进行研究和分析。结果表明，陕西38 份古茶树种质资源6 个主要表型性状（叶面积、叶形、叶色、叶身、叶
面隆起性、叶片着生角度）变异丰富，不同性状间遗传多样性指数不同，遗传多样性指数在0.7934～0.9969
之间，平均遗传多样性指数为0.8811；在欧氏距离10 时可将陕西38 份古茶树种质资源聚类为2 大类群，但
并没有严格按照地域聚类，而是按照表型性状遗传多样性进行聚类。研究结果表明，陕西汉中、安康等地古
茶树种质资源表型性状变异丰富，具有较高的遗传多样性和选育优异茶树种质资源的潜力。 |
| 英文摘要: |
| The research and utilization of the ancient tea germplasm resources were the new topic in the
reasearch of the tea germplasm resources in China. In order to identify and evaluate the phenotypic traits diversity
index of the 38 ancient tea germplasm resources in Shaanxi，the phenotypic traits diversity index was researched and
analyzed with the methods of the correlation analysis，the principal compoent analysis and the clustering analysis
in the paper. The results showed that，the diversity and variation of the six main phenotypic traits（leaf size，leaf
shape，leaf colour，leaf cross section，leaf upper surface and leaf attitude）of the 38 ancient tea germplasm resources
in Shaanxi was abundant，the diversity index among the main phenotypic traits was different，the diversity index was
between 0.7934-0.9969，and the average diversity index reaching 0.8811；the 38 ancient tea germplasm resources in
Shaanxi could clustered into two large groups at the euclidean distance of ten，they were clustered accordance with the
phenotypic traits diversity index，were not in strict accordance with the regional cluster. The variation of the ancient
tea germplasm resources in Hanzhong and Ankang of Shaanxi was abundant，possessing the high genetic diversity and
breeding potential of the excellent tea germplasm resources to a certain extent. |
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