云南野生猕猴桃资源不同居群遗传多样性及遗传演化关系  

Genetic diversity and evolution relationship of different populations of natural Actinidia germplasm resources in Yunnan Province

作　　者：王连润[1] 万红[1] 陶磅[1] 陈霞[1] 李坤明[1] 沙毓沧[1] WANG Lianrun;WAN Hong;TAO Pang;CHEN Xia;LI Kunming;SHA Yucang(Horticultural Research Institute of Yunnan Academy of Agricultural Sciences,Kunming,Yunnan 650205,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：《中国南方果树》2024年第2期152-158,共7页South China Fruits

基　　金：国家自然科学基金(31960579)资助。

摘　　要：应用SSR分子标记研究云南10个地理居群野生猕猴桃的遗传多样性及遗传演化关系。结果表明,不同地理居群间的遗传多样性水平差异不大;居群间的遗传一致度在0.9899~0.9991之间,遗传分化系数(Gst)在0.0011~0.1743之间。威信居群与彝良居群间的遗传一致度最高,遗传距离最小,亲缘关系最近;永善居群与云龙居群间的遗传一致度最低,遗传距离最大,亲缘关系最远。10个居群可分为两大类群,师宗、绥江、西畴和永善4个居群聚为类群Ⅰ,麻栗坡、屏边、云龙、镇雄、彝良和威信6个居群聚为类群Ⅱ。类群Ⅰ内的遗传演化关系可分为2个进化层次,师宗居群与绥江居群之间以及西畴居群与永善居群之间的遗传进化关系最近。类群Ⅱ内的遗传演化关系可分为5个进化层次,麻栗坡居群与屏边居群之间的遗传进化关系最近,云龙居群与威信居群之间的亲缘关系较远。研究结果可为加快云南猕猴桃属种质资源的研究利用提供参考。SSR molecular markers were applied to study the genetic diversity and evolution of 10 natural Actinidia populations in Yunnan.The results showed that there was no obvious difference on genetic diversity among different geographical populations.The genetic consistency among populations ranged from 0.9899 to 0.9991,and the genetic differentiation coefficient(Gst)ranged from 0.0011 to 0.1743.The genetic consistency between the Weixin and Yiliang populations was the highest with minimum genetic distance and closest genetic relationship.The genetic consistency between Yongshan and Yunlong populations was the lowest,with maximum genetic distance and the farthest genetic relationship.These 10 populations can be divided into two groups.Four populations of Shizong,Suijiang,Xichou and Yongshan were clustered into group I,and 6 populations of Malipo,Pingbian,Yunlong,Zhenxiong,Yiliang and Weixin were clustered into group II.Genetic evolution relationship of the four populations in group I can be divided into two evolutionary levels.The genetic relationship between Shizong and Suijiang populations,and the genetic relationship between Xichou and Yongshan populations was the closest,respectively.The genetic evolution relationship of group II could be divided into five evolutionary levels.The genetic evolution relationship between Malipo population and Pingbian population was the closest,and the genetic relationship between Yunlong population and Weixin population was the farthest.This study provided a reference for accelerating the research and utilization of germplasm resources of the genus Actinidia in Yunnan.

关 键 词：云南 野生猕猴桃 SSR 遗传多样性 遗传演化 

分 类 号：S663.4[农业科学—果树学]