黄皮种质资源果实性状多样性分析及其数量分类研究  

Fruit Character Diversity Analysis and Numerical Taxonomy of Wampee(Clausena lansium)Germplasm Resources

作　　者：陆育生 林志雄[1] 邱继水[1] 常晓晓[1] 潘建平[1] LU Yu-sheng LIN Zhi-xiong QIU Ji-shui CHANG Xiao-xiao PAN Jian-ping(Institution of Fruit Tree Research, Guangdong Academy of Agricultural Sciences, Key Laboratory of South Subtropical Fruit Biology and Resource Utilization, Ministry of Agriculture, Guangdong Provincial Key Laboratory of Tropical and Subtropical Fruit Tree Research, Guangzhou 510640, China)

机构地区：[1]广东省农业科学院果树研究所农业部南亚热带果树生物学及遗传资源利用重点实验室广东省热带亚热带果树研究重点实验室,广州510640

出　　处：《园艺学报》2016年第10期1903-1915,共13页Acta Horticulturae Sinica

基　　金：国家自然科学基金项目(31501729);广东省科技计划项目(2015A030302041;2016B020201004);广东省农业科学院院长基金项目(201605)

摘　　要：为深入了解黄皮(Clausena lansium)种质资源果实性状的多样性,根据《黄皮种质资源描述规范和数据标准》,对农业部广州黄皮种质资源圃中保存的96份黄皮种质果实性状进行观测,并结合Q型聚类、R型聚类和主成分分析等方法开展数量分类研究。结果表明,22个描述型性状,平均每个性状的变异类型达3.4个,其中种子形状的变异类型最为丰富,为6个。16个数量性状中,穗粒数的变异系数最大,为58.78%;种子侧径的变异系数最小,为6.34%。Q型聚类分析将96份种质在欧氏距离19.84处分为4个类群,类群内的种质资源以果穗性状、果实大小和果实风味聚类;R型聚类分析将38个果实性状在相关系数1.45时分为4组,多数性状表现两两相关;主成分分析结果表明,第1、第2主成分解释的总变异为28.16%,其分析结果与聚类分析基本一致。In order to further understand the genetic diversity of wampee（Clausena lansium）germplasm resources,fruit characters of 96 wampees conserved at the National Depository of Wampee Germplasm（Guangzhou）were evaluated in this study according to the book of‘Descriptors and Data Standard for Wampee[Clausena lansium（Lour.）Skeels]’and the data was numerical classified by Q cluster analysis,R cluster analysis and principal component analysis. The results indicated that the average variation type of 22 descriptive characters was up to 3.4,among which the shape of seed had the most variation with coefficient 6. Among 16 numerical characters,the number of fruits per ear possessed the largest coefficient of variance,which was 58.78%,while the lateral diameter of seed had the least coefficient of variance,6.34%. The result of Q cluster analysis showed that 96 wampee germplasm resources were divided into 4 groups at the Euclidean distance of 19.84 based on characters of fruit ear,fruit size and fruit taste. The result of R cluster analysis indicated that 38 fruit characters which show close relationship were significantly clustered into 4 groups at similarity coefficient of 1.45. Principal component analysis suggested that the first and second principal components could explain 28.16% of total variance,and the results were basically consistent with the cluster analysis.

关 键 词：黄皮 种质资源 果实性状 多样性 数量分类 

分 类 号：S666[农业科学—果树学]