Comprehensive evaluation of kernel and quality traits in maize-teosinte introgression line population
[Objective]To study the quality differences of maize-teosinte introgression line population in the hope of providing basis for breeding high-quality maize.[Methods]In this study,principal component analysis and cluster analysis were conducted to comprehensively evaluate the grains and quality traits of 866 families belonging to the maize-teosinte introgression line population.The traits analyzed included kernel length,kernel width,kernel thickness,and 100-kernel weight,as well as various quality-related traits such as protein,starch,soluble sugar,Lysine,phosphorus,and potassium.This comprehensive evaluation al-lowed us to gain insights into the genetic characteristics of these traits.[Results]The results showed that the 10 traits were characterized by richer variation,with coefficients of variation ranging from 6.401%to 20.451%.Kernel traits were mostly negatively correlated with quality traits,while all quality traits were posi-tively correlated with each other except starch,protein and soluble sugar,which were negatively correlated.10 better inbred lines were selected,in which all of the 3 rd taxon were inclusive.[Conclusion]The kernel and quality traits of each family line in this group have different degrees of correlation,which can be used to select materials according to their correlation in the subsequent yield and quality breeding.Meanwhile,the inbred materials with good performance in starch,soluble sugar and kernel weight can be used as the core germplasm resources for subsequent breeding.
国家科技期刊平台
NSTL
万方数据
