内蒙古农业大学学报（自然科学版）2026，Vol.47Issue(1)：9-16,8.DOI:10.16853/j.cnki.1009-3575.2026.01.002
马铃薯杂交组合群体性状分析与新品系选育
Analysis of Population Traits in Potato Hybrid Combinations and Breeding of New Varieties
摘要
Abstract
In order to enrich the potato germplasm resources in Inner Mongolia,this study carried out statistical investigation,correlation detection,principal component analysis and systematic cluster analysis on eighteen traits of 325 materials from different hybrid combina-tions,and then constructed SSR fingerprints of nine new strains screened for comprehensive evaluation.The genetic diversity index of eigh-teen traits of 325 tested materials ranged from 0.26 to 2.03.The correlation analysis revealed that the correlation coefficient between the number of main stems and the number of branches was the highest.The principal component analysis simplified the eight quantitative trait indices into four principal components,with a cumulative contribution rate of 90.717%.The clustering results showed that the 325 materi-als could be divided into five groups.Nine new strains suitable for cultivation in Inner Mongolia were selected through comprehensive scor-ing.Through the eight pairs of SSR polymorphic primers selected,98 alleles and 84 polymorphic loci were amplified.The comprehensive evaluation was consistent with the SSR analysis,the new strain'Y37-99'had the highest comprehensive score and could be used for fur-ther breeding as a new variety.The results of this study provided a theoretical reference for the breeding of new potato varieties.关键词
马铃薯/新品系/相关性分析/主成分分析/SSRKey words
Potatoes/New strain/Correlation analysis/Principal component analysis/SSR分类
农业科技引用本文复制引用
皇馨悦,张霞,张宏吉,樊荣,王慧婷,徐文锋,田振平,田康瑞,于肖夏..马铃薯杂交组合群体性状分析与新品系选育[J].内蒙古农业大学学报（自然科学版）,2026,47(1):9-16,8.基金项目
内蒙古自治区自然科学基金项目(2024MS03018) （2024MS03018）
内蒙古农业大学优秀青年科学基金培养项目(BR220403) （BR220403）
内蒙古自治区留学人员创新创业启动支持计划项目(nmlxcx2024) （nmlxcx2024）
