| 鹧鸪茶种质资源品质性状的多样性分析 |
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| 引用本文： | 顾文亮,张建禹,覃永兰,庄辉发,王辉,张翠玲,谭乐和.鹧鸪茶种质资源品质性状的多样性分析[J].热带作物学报,2019,40(12):2364-2368. |
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| 作者姓名： | 顾文亮 张建禹 覃永兰 庄辉发 王辉 张翠玲 谭乐和 |
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| 作者单位： | 1. 中国热带农业科学院香料饮料研究所,海南万宁 5715332. 农业农村部香辛饮料作物遗传资源利用重点实验室,海南万宁 5715333. 云南农业大学热带作物学院,云南普洱 6650994. 长江师范学院,重庆 408100 |
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| 基金项目： | 国家香料饮料作物种质资源平台运行服务项目(No.NICGR-2019-094);海南省应用技术研发与示范推广专项“鹧鸪茶优良无性品系选育及种苗繁育技术研究”(No.ZDXM2015053) |
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| 摘 要： | 针对海南省的92份鹧鸪茶种质为材料,采用主成分分析和聚类分析,对水浸出物、茶多酚含量、游离氨基酸含量、咖啡碱含量和氨酚比等5个主要品质性状进行多样性分析。结果表明,鹧鸪茶种质资源主要品质性状的遗传变异丰富。游离氨基含量的多样性指数最高,其次是茶多酚含量;咖啡碱含量的变异系数最大,其次是氨酚比。主成分分析表明,前2个主成分累计贡献率达77.70%,能够反映5个品质性状的大部分信息。基于各种质在5个品质性状上的差异,对92份鹧鸪茶种质进行聚类分析,发现第Ⅰ、Ⅱ、Ⅲ类3个类群,第Ⅲ类群综合表现最好,抗氧化的保健功效突出,且咖啡碱含量最低,可作为良好的育种材料。本研究结果可为鹧鸪茶的开发利用以及优良无性品系选育提供科学依据。
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| 关 键 词： | 鹧鸪茶 种质资源 品质性状 遗传多样性 |
| 收稿时间： | 2019-09-23 |
Quality Traits Diversity Analysis of Mallotus oblongifolius Germplasm Resources |
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| GU Wenliang,ZHANG Jianyu,QIN Yonglan,ZHUANG Huifa,WANG Hui,ZHANG Cuiling,TAN Lehe.Quality Traits Diversity Analysis of Mallotus oblongifolius Germplasm Resources[J].Chinese Journal of Tropical Crops,2019,40(12):2364-2368. |
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| Authors: | GU Wenliang ZHANG Jianyu QIN Yonglan ZHUANG Huifa WANG Hui ZHANG Cuiling TAN Lehe |
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| Institution: | 1. Spice and Beverage Research Institute, Chinese Academy of Tropical Agricultural Sciences, Wanning, Hainan 571533, China2. Key Laboratory of Genetic Resources Utilization of Spice and Beverage Crops, Ministry of Agriculture and Rural Affairs, Wanning, Hainan 571533, China3. School of Tropical Crops, Yunnan Agricultural University, Pu°er, Yunnan 665099, China4. Yangtze Normal University, Chongqing 408100, China |
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| Abstract: | The genetic diversity of five major quality traits including water extracts content, tea polyphenols content, free amino acid content, caffeine content and ammonia polyphenols ratio was analyzed by the principal component analysis and cluster analysis for 92 Mallotus oblongifolius germplasm resources from Hainan, China. The genetic diversity of the major quality traits of M. oblongifolius germplasms was abundant. The diversity index of the content of free amino acids was the highest, and that of the content of tea polyphenols was the second highest. The coefficient variation of the caffeine content was the highest, followed by the ammonia polyphenols ratio. The principal components analysis of the five quality traits revealed that the first two principal components accounted for 77.70% accumulation contribution rate, reflecting most of the information of the five traits. Based on the difference of the five quality traits between each resource, the 92 germplasms were divided into three groups. The third group had the best prominent antioxidant health care effect and the lowest caffeine content. It means that the third group could be used as a good material for breeding. Our results could provide a scientific basis for the utilization and breeding for excellent asexual strains of M. oblongifolius. |
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| Keywords: | Mallotus oblongifolius (Miq ) Muell Arg germplasm resources quality traits genetic diversity |
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