| 77份文心兰种质资源表型性状遗传多样性分析 |
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| 引用本文： | 张叶,叶蓓蕾,邬静,刘乐,黎维诗,郝代成,谢尚潜,凌鹏. 77份文心兰种质资源表型性状遗传多样性分析[J]. 热带作物学报, 2021, 42(8): 2183-2190. DOI: 10.3969/j.issn.1000-2561.2021.08.009 |
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| 作者姓名： | 张叶 叶蓓蕾 邬静 刘乐 黎维诗 郝代成 谢尚潜 凌鹏 |
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| 作者单位： | 热带特色林木花卉遗传与种质创新教育部重点实验室(海南大学),海南海口 570228;海南博大兰花科技有限公司,海南海口 570311 |
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| 基金项目： | 海南省重大科技计划项目(ZDKJ201815) |
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| 摘 要： | 对文心兰77份种质资源的28个表型性状进行测定与评价,通过相关性分析、主成分分析及聚类分析获得其表型遗传多样性.结果表明:21个数量性状的遗传多样性指数均值达1.85,变化区间为1.36～2.07,其中数值最大为株幅(2.07);在7个质量形状中,除叶色性状外的其他表型性状的多样性指数均大于1,均值为1.23,最大表现...
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| 关 键 词： | 文心兰 表型性状 种质资源 遗传多样性 |
| 收稿时间： | 2020-10-15 |
Analysis of Genetic Diversity of Phenotypic Traits of 77 Oncidium Germplasm Resources |
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| ZHANG Ye,YE Beilei,WU Jing,LIU Le,LI Weishi,HAO Daicheng,XIE Shangqian,LING Peng. Analysis of Genetic Diversity of Phenotypic Traits of 77 Oncidium Germplasm Resources[J]. Chinese Journal of Tropical Crops, 2021, 42(8): 2183-2190. DOI: 10.3969/j.issn.1000-2561.2021.08.009 |
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| Authors: | ZHANG Ye YE Beilei WU Jing LIU Le LI Weishi HAO Daicheng XIE Shangqian LING Peng |
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| Affiliation: | 1. Key Laboratory of Genetics and Germplasm Innovation of Tropical Special Forest Trees and Ornamental Plants, Ministry of Education, Hainan University, Haikou, Hainan 570228, China2. Hainan Boda Orchid Technology Co., Ltd., Haikou, Hainan 570311, China |
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| Abstract: | 28 traits of 77 Oncidium germplasm resources were measured and evaluated. The correlation analysis, principal component analysis and cluster analysis of the traits of Oncidium were used to obtain the phenotypic genetic diversity analysis results. The average value of genetic diversity index of 21 quantitative traits reached 1.85, and the variation range was 1.36 to 2.07, with the largest value being the plant width (2.07). In the quality shape, the diversity index of other phenotypic traits except leaf color traits was greater than 1, with an average value of 1.23, and the largest manifestation was the lip color (1.79). The correlation analysis results showed that the relationship between quantitative traits was complex, and most of the traits showed significant or extremely significant positive correlation. Four principal components with eigenvalue greater than 1 were screened out by principal component analysis, and the cumulative contribution rate reached 74.079%. It was mainly composed of Oncidium gynandrium length, middle sepal width, flowering branches length, number of flowers, sidesepal width, lip width, and sidesepal length phenotypic characteristics. The study could provide a theoretical basis for the breeding of new varieties of Oncidium and the selection of hybrid parents. |
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| Keywords: | Oncidium phenotypic trait germplasm resource genetic diversity |
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