| 中国部分胡椒属植物表型性状的数量分类 |
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| 引用本文： | 郝朝运,谭乐和,范睿,杨建峰,鱼欢,邬华松,吴刚.中国部分胡椒属植物表型性状的数量分类[J].热带作物学报,2012,33(5):779-785. |
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| 作者姓名： | 郝朝运 谭乐和 范睿 杨建峰 鱼欢 邬华松 吴刚 |
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| 作者单位： | 中国热带农业科学院香料饮料研究所 农业部香辛饮料作物遗传资源利用重点实验室 海南省热带香辛饮料作物遗传改良与品质调控重点实验室 海南万宁571533 |
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| 基金项目： | 公益性（农业）科研专项项目（No. 200903024-005）； 农业部热作种质资源保护项目（No. 11RZZY-08，12RZZY-13）。 |
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| 摘 要： | 利用聚类分析和主成分分析,基于32个重要表型性状研究中国29种(包括变种)胡椒属植物的形态多样性与系统关系。结果表明:枝条是否被毛、叶片宽度、叶质地等9个性状与其它性状密切相关,或出现规律性不明显,在种以上分类单位划分中作用不大;表型性状变异水平偏低,且各性状贡献率分散,累计贡献率增长缓慢,说明胡椒属植物在演化过程中表型变异的多方向性和复杂性;29种胡椒属植物大体可被划分为4个类群,各类群并未出现明显的地域性特征。
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| 关 键 词： | 胡椒属 数量分类 聚类分析 主成分分析 |
Mathematic Classification of Some Species in Piper Genus with Morphological Characters |
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| HAO Chaoyun,TAN Lehe,FAN Rui,YANG Jianfeng,YU Huan,WU Huasong and WU Gang.Mathematic Classification of Some Species in Piper Genus with Morphological Characters[J].Chinese Journal of Tropical Crops,2012,33(5):779-785. |
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| Authors: | HAO Chaoyun TAN Lehe FAN Rui YANG Jianfeng YU Huan WU Huasong and WU Gang |
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| Institution: | Spice and Beverage Research Institute, CATAS, Ministry of Agriculture Key Laboratory of Genetic Resources Utilization of Spice and Beverage Crops, Hainan Provincial Key Laboratory of Genetic Improvement and Quality Regulatioin for Tropical Spice and Beverage Crops;Spice and Beverage Research Institute, CATAS, Ministry of Agriculture Key Laboratory of Genetic Resources Utilization of Spice and Beverage Crops, Hainan Provincial Key Laboratory of Genetic Improvement and Quality Regulatioin for Tropical Spice and Beverage Crops;Spice and Beverage Research Institute, CATAS, Ministry of Agriculture Key Laboratory of Genetic Resources Utilization of Spice and Beverage Crops, Hainan Provincial Key Laboratory of Genetic Improvement and Quality Regulatioin for Tropical Spice and Beverage Crops;Spice and Beverage Research Institute, CATAS, Ministry of Agriculture Key Laboratory of Genetic Resources Utilization of Spice and Beverage Crops, Hainan Provincial Key Laboratory of Genetic Improvement and Quality Regulatioin for Tropical Spice and Beverage Crops;Spice and Beverage Research Institute, CATAS, Ministry of Agriculture Key Laboratory of Genetic Resources Utilization of Spice and Beverage Crops, Hainan Provincial Key Laboratory of Genetic Improvement and Quality Regulatioin for Tropical Spice and Beverage Crops;Spice and Beverage Research Institute, CATAS, Ministry of Agriculture Key Laboratory of Genetic Resources Utilization of Spice and Beverage Crops, Hainan Provincial Key Laboratory of Genetic Improvement and Quality Regulatioin for Tropical Spice and Beverage Crops;Spice and Beverage Research Institute, CATAS, Ministry of Agriculture Key Laboratory of Genetic Resources Utilization of Spice and Beverage Crops, Hainan Provincial Key Laboratory of Genetic Improvement and Quality Regulatioin for Tropical Spice and Beverage Crops |
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| Abstract: | The mathematic classification of 29 species(including varieties) in Piper genus of China was studied with 32 important morphological characters, including 11 dualistic characters, 13 multi-characters and 8 quantitative characters, by using cluster analysis and principal component analysis. The result showed that 9 characters were closely related to others or appeared irregularly, showing that those characters did not play a significant role on the classification of Piper species. The level of morphological characters deviation was low and the contributions of the first several principal components were obviously not big enough as expected. The results showed that deviation of morphological characters might be multi-directional characteristics during the course of evolution and their taxonomic significance in Piper was not as useful as in other plants. The 29 species of Piper were divided into four caboodles by clustering analysis, and each caboodle did not show obvious regional characteristics. |
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| Keywords: | Piper Mathematic classification Cluster analysis Principal component analyses(PCA) |
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