云南野生猕猴桃资源果实性状的多元统计分析  

Multivariate statistical analyses of fruit characteristics of wild kiwifruit germplasm resources in different ecological regions of Yunnan

作　　者：王连润[1] 万红[1] 陶磅[1] 李坤明[1] 陈霞[1] 丁仁展[1] 沙毓沧[1] WANG Lianrun;WAN Hong;TAO Pang;LI Kunming;CHEN Xia;DING Renzhan;SHA Yucang(Horticultural Research Institute of Yunnan Academy of Agricultural Sciences,Kunming 650205,Yunnan,China)

机构地区：[1]云南省农业科学院园艺作物研究所,昆明650205

出　　处：《果树学报》2022年第11期2019-2027,共9页Journal of Fruit Science

基　　金：国家自然科学基金项目(31960579)。

摘　　要：【目的】通过对76份云南野生猕猴桃果实性状开展多元统计分析,探明果实性状的遗传差异、相关性和聚类情况,为加快云南猕猴桃资源的研究利用提供参考。【方法】对76份资源的12个果实性状进行了变异度分析、因子分析、相关性分析和聚类分析等多元统计分析。【结果】12个果实性状的变异系数为23.96%~117.01%,变异系数居前二位的性状为被毛类型和被毛密度,达117.01%和113.49%,果肉颜色、单果质量、果形和果点的变异系数较大,均超过50%,果实纵径、横径、侧径、果形指数、果皮颜色和风味的变异系数均在50%以下,变异系数最小的为风味。因子分析得到3个主要因子,累积贡献率达73.843%。相关性分析结果表明,有25对性状间呈极显著正相关,7对性状间呈极显著负相关,有3对性状间呈显著正相关,5对性状间呈显著负相关。通过系统聚类分析,可把76份资源划分为3大类,可选择第3大类的材料进行鲜食新品种选育。【结论】76份资源果实性状表现存在显著的遗传差异,遗传多样性比较丰富。【Objective】Yunnan province is located in the southwest frontier of China,with rich and diverse climate types,which provide different ecological environment and living conditions for different kinds of kiwifruit,so that Yunnan province is enriched with kiwifruit resources.At present,some related studies such as sensory traits,morphological indicators,nutrient contents and nutritional quality have been carried out on kiwifruit resources in Yunnan.In order to find out the genetic differences and genetic diversity,provide reference for future genetic breeding of kiwifruit,guide the screening of new germplasm and accelerate the research and utilization of germplasm resources of the genus kiwifruit in Yunnan,we surveyed and collected local wild kiwifruit germplasm resources in Yunnan from 2019 to 2021,and investigated the genetic differences,taxonomic status,and correlations among the 12 traits examined,which were based on the morphological identification analysis,by conducting multivariate statistical analysis of fruit traits in 76 wild kiwifruit germplasm resources collected from five regions in northeastern,southeastern,southern,northwestern,and eastern Yunnan.【Methods】Multivariate statistical analyses,such as variation analysis,factor analysis,correlation analysis and cluster analysis,were performed on 12 fruit traits including fruit shape,longitudinal diameter,transverse diameter,side diameter,fruit shape index,single fruit weight,fruit skin color,fruit dots,hair density,hair type,flesh color and flavor of 76 Yunnan kiwifruit germplasm resources.【Results】The coefficients of variation of 12 traits ranged from 23.96%to 117.01%,and among the traits,the largest coefficients of variation were hair type and hair density,with coefficients of variation of 117.01%and 113.49%,respectively.Morphological identification analysis showed that 76 Yunnan wild kiwifruit germplasm resources were with all kinds of hair type,for example,some fruits were densely covered with short woolly hairs,some fruits were densely cover

关 键 词：猕猴桃 云南 种质资源 果实性状 多元统计分析 

分 类 号：S663.4[农业科学—果树学]