蒙古栎主要种群表型性状变异分析及多样性研究  

Study on variation and diversity of phenotypic characters of main populations of Quercus mongolica

作　　者：王娜 杨会娜 肖健 WANG Na;YANG Huina;XIAO Jian(Hulunbeier Agro-Technique Extension Service Center,Hailaer 021008,China;Hulunbuir Agricultural and Animal Husbandry Science Research Institute,Hailaer 021008,China)

机构地区：[1]呼伦贝尔市农牧技术推广中心,内蒙古海拉尔021008 [2]呼伦贝尔市农牧科学研究所,内蒙古海拉尔021008

出　　处：《林业与生态科学》2023年第3期269-274,共6页Forestry and Ecological Sciences

基　　金：国家林业局项目(2009330)。

摘　　要：为揭示蒙古栎种群的表型分化程度和变异规律,探索蒙古栎表型变异特点和性状地理分布格局,对来自河北、内蒙古、辽宁、吉林、黑龙江5省6个蒙古栎天然种群的10个表型性状进行差异分析和多样性研究,采用巢式分析、相关性分析及聚类分析对种群表型多样性进行系统分析。结果发现,蒙古栎的9个表型性状差异显著,种群表型分化系数为48.12%,种群内表型分化程度略高于种群间表型分化程度;10个表型性状香农指数均大于1.00,性状表现丰富,种群变异系数差别较大,变异幅度为5.0%~51.1%,同一表型性状在不同种群间的变异及同一种群内不同表型性状的变异不同;利用聚类分析将蒙古栎种群分为3类,聚类结果与地理距离不一致。In order to reveal Quercus mongolica population phenotypic differentiation degree and variation law,and explore Q.mongolica characteristics of phenotype variation and geographical distribution pattern of traits.The differences and diversity of 10 phenotypic characters of 6 natural populations of Q.mongolica from Hebei,Inner Mongolia,Liaoning,Jilin and Heilongjiang provinces were studied.The phenotypic differentiation and variation of Q.mongolica phenotypic traits with methods of nested analysis of variance,correlation analysis and cluster analysis were analyzed.The results showed that 9 phenotypic traits were significantly different.The phenotypic differentiation coefficient was 48.12%,and the degree of phenotypic differentiation within populations was slightly higher than that between populations.The Shannon index of 10 phenotypic characters was all greater than 1.00,indicating that the characters were abundant,and the coefficient of variation of population varied greatly,ranging from 5.0%-51.1%.The variation of the same phenotypic trait between different populations and the variation of different phenotypic traits within the same population were different.The population of Q.mongolica was divided into three groups by cluster analysis.The clustering results were inconsistent with geographical distance.

关 键 词：蒙古栎 种群 表型性状 表型分化系数 

分 类 号：S718.55[农业科学—林学]