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中国农学通报

中国农学通报 ›› 2016, Vol. 32 ›› Issue (36): 109-114.doi: 10.11924/j.issn.1000-6850.casb16060018

所属专题： 资源与环境； 园艺

• 生物技术科学 • 上一篇    下一篇

连南栽培型古茶树资源叶片表型性状遗传多样性及聚类分析

李华锋,滕 杰,杨家干,杨亚杰,晏嫦妤,黄亚辉   

  1. (华南农业大学园艺学院,广州 510642）
  • 收稿日期:2016-06-03 修回日期:2016-07-13 接受日期:2016-07-22 出版日期:2016-12-26 发布日期:2016-12-26
  • 通讯作者: 黄亚辉
  • 基金资助:
    广东省科技计划项目“广东抗寒及特异茶树新种质的创制和利用研究”(2013B020201003)；广东省科技计划项目“广东特异资源与新品种选育”(2015B020202007)；福建省科技计划项目“中国乌龙茶产业协同创新中心专项”（闽教〔2015〕75号）；广东省科技计划项目“高EGCG茶树资源的引种、驯化及繁殖技术”(2016A020208012)；广东省科技计划项目“连南古茶树资源的评价及优良品系筛选”(2016A020210070)。

Genetic Diversity and Cluster Analysis of Leaf Phenotypic Traits of Liannan Cultivated Ancient Tea

Li Huafeng, Teng Jie, Yang Jiagan, Yang Yajie, Yan Changyu, Huang Yahui   

  1. (College of Horticulture South China Agricultural University, Guangzhou 510642)
  • Received:2016-06-03 Revised:2016-07-13 Accepted:2016-07-22 Online:2016-12-26 Published:2016-12-26

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551

摘要： 以连南县内涡水、黄连、大龙不同地方的共66份栽培型古茶树资源为材料，对茶树叶长、叶宽、叶面积、叶形、叶身、叶缘等24项叶片表型性状进行了遗传多样性研究。通过变异系数、Shannon-Weaver、聚类分析等方法分析，结果表明：连南66份茶树资源24个叶片表型性状的平均变异系数为31.86%，其中叶基变异系数最大(92.90%)，侧脉与主脉交角最小(12.02%)。24个叶片性状的平均遗传多样性指数为1.10，多样性系数均较大，叶基遗传多样性指数最大，其值为2.08，叶面遗传多样性指数最小，其值为0.59。基于24项叶片表型性状，66份茶树资源在欧氏距离为20时聚为5类，存在丰富的变异程度和遗传多样性。

关键词: 水稻, 水稻, 干物质, 产量, 相关性

Abstract: Genetic diversity of 66 cultivated ancient tea plants from Woshui, Huanglian and Dalong of Liannan was studied based on 24 leaf phenotypic characters such as leaf length, leaf width, leaf area, leaf shape, leaf lamina, leaf margin and so on, the method of variable coefficient, Shannon-Weaver and cluster analysis were used. The results showed that the average variable coefficient of the 66 cultivated ancient tea plants was 31.86%, and the variable coefficient of phyllopodium was the maximum (92.90%), while that of the angle between lateral vein and main vein was the minimum (12.02%). The average Shannon-Weaver index was 1.10, and the diversity coefficient was great. The diversity coefficient of phyllopodium was the maximum (2.08), and that of leaf area was the minimum (0.59). Furthermore, the 66 cultivated ancient tea plants were clustered into 5 groups at the euclidean of 20 based on 24 leaf phenotypic characters, which showed rich variation degree and genetic diversity.

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