| 金牡丹自然杂交后代遗传差异分析 |
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| 引用本文： | 杨军,孔祥瑞,王让剑,郑国华.金牡丹自然杂交后代遗传差异分析[J].茶叶科学简报,2014(4):32-36. |
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| 作者姓名： | 杨军 孔祥瑞 王让剑 郑国华 |
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| 作者单位： | 福建省农业科学院茶叶研究所,福建福安,355015 |
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| 基金项目： | 福建省现代农业(茶叶)产业技术体系建设项目；福建省农业科学院科技创新团队建设项目 |
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| 摘 要： | 利用EST-SSR对茶树品种铁观音、黄棪、金牡丹及其自然杂交后代,进行初步遗传多样性和亲缘关系分析。14对EST-SSR标记共检测到等位位点62个,平均检测到4.43个,Shannon信息指数1.22,Simpson指数0.70。在相似系数0.73时,金牡丹自然杂交后代可分为4组。结果表明,第I组与铁观音亲缘关系最近,第II组与金牡丹亲缘关系最近,第II组组内遗传多样性较高;4个组间在树幅、叶片长、叶片宽等性状上达到显著性差异,每组在性状上都具有一定的群体特征。
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| 关 键 词： | 茶树 自然杂交 EST-SSR 亲缘关系 遗传多样性 |
Analysis of Genetic Diversity Among the Natural Hybrid Prodenies ofJinmudan(Camellia sinensis) |
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| YANG Jun,KONG Xiang-rui,WANG Rang-jian,ZHENG Guo-hua.Analysis of Genetic Diversity Among the Natural Hybrid Prodenies ofJinmudan(Camellia sinensis)[J].Tea Science and Technology,2014(4):32-36. |
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| Authors: | YANG Jun KONG Xiang-rui WANG Rang-jian ZHENG Guo-hua |
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| Institution: | (Tea Research Institute, Fujian Academy of Agricultural Sciences, Fu ＇an, Fujian 355015, China) |
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| Abstract: | Genetic diversity and relationship among Camellia sinensis ＂Tie guanyin＂, ＂Huangdan＂, and ＂Jinmudan＂ and its natural hybrid prodenies, were researched with EST-ESSR markers. Using 14 EST-SSR primers, 62 alleles were generated and its average value was 4.43（ranged between 1 and 7）. The Shannon＇s information index and Simpson index were 0.485 and 0.70 respectively. According to the similarity coefficient at 0.73, the natural hybrid progenies of Jinmudan could be clustered into 4 groups. From the results, Group I was a close relative of Tie guanyin. Group II was close related to Jinmudan and expressed the high genetic variation. There were significant differences in tree width, leaf length and leaf width among 4 group progenies of Jinmudan, furthermore, each group possessed a certain group characteristics. |
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| Keywords: | tea plant natural hybrids EST-SSR genetic relationship genetic diversity |
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