不同柠条锦鸡儿种群表型特征多样性分析

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中图分类号：Q948.1 文献标识码：A 文章编号：1006-0960（2025）01-0032-07

Analysis of Diversity of Phenotypic Characteristics in Different Caragana korshinskii Populations

HUAXiaoqin1，MAHongwen1，WANGDuowen1，LINZhijun1，ZHANGJiaxin （1.Wuwei Forestry Comprehensive Service Center，Wuwei Gansu 733ooo，China;2.Beijng Forestry University， Beijing，100000，China）

Abstract：In order to study the diversityof phenotypic characteristics in natural populations of Caragana korshinskii at the desert edge，included Hongaobao of Wuwei City，Alagu Mountain，Zhazigou， Mingdiao canal and Babusha area.Genetic diversity，principal component analysis and cluster analysis wereused to analyze 13 phenotypic characteristics diversity of C .korshinskii in five populations.The results showed that the Shannon-Wiener index of each character of the five C .korshinskii populations was between （204 ，the average coefficient of variation was 22.49% ，and the differentiation coefficient was between 64.07%～100% .The principal component analysis divided the 13 characters into four principal components. Cluster analysis clustered the five C.korshinskii populations into three categories.Leaf length，branch spines，leaf hair，and1 OOo-grain weight were the main characteristics of population diffrentiation.There were abundant phenotypic variations among C.korshinskii populations in the desert edge of Wuwei area， which provided theoretical basis and germplasm resources for the breeding of C.korshinskii.

Keywords：Caragana korshinskii; populations; diversity of phenotypic characteristics

表型多样性是遗传多样性的外部反映，是种质资源收集、保存、利用的前提[1，同一物种、同一居群的不同个体之间往往存在不同形式、不同程度的变异，这些变异多由基因和环境共同作用决定，与植物遗传特性、生理生化、繁殖特征、功能具有密切关系，而植物表型性状多样性分析对其表型变异及多样性研究具有直观、方便、经济等优点，因此在研究植物多样性时开展表型性状研究十分必要[2-5]。（剩余6575字）