湖北农业科学2025，Vol.64Issue(8)：54-61,8.DOI:10.14088/j.cnki.issn0439-8114.2025.08.009
测交鉴定结合数量性状遗传分析创制糯高粱保持系资源
The creation of waxy sorghum maintainer line resources by test cross identification combined with quantitative trait genetic analysis
摘要
Abstract
The application of three-line hybrid waxy sorghum in production had been constrained by the scarcity of elite waxy maintain-er germplasm resources.To rapidly create waxy sorghum maintainer germplasm resources,the F2 segregating population and F2:3 family population were constructed by using Aijiaonuo as the male parent and maintainer line TX623B as the female parent.The inheritance of sorghum quantitative traits such as plant height and stem diameter was analyzed by using the major gene+polygene mixed model.The results showed that the plant height was controlled by two pairs of major genes,and the heritability was high.Stem diameter was controlled by a pair of major genes,and the heritability was low.Based on the results of genetic analysis,a weighted comprehensive evaluation and screening system based on fuzzy similarity priority ratio was established by DPS data processing system,and the weight-ed comprehensive evaluation of F2:3 families was carried out.The application direction of excellent family materials in variety breeding was evaluated by comprehensive evaluation,and waxy maintainer materials with good comprehensive traits and phenotypic traits close to TX623B were screened out,which provided a method basis and material basis for sorghum variety breeding and heterosis utilization.关键词
糯高粱/保持系/回交转育/测交/数量性状/株高/茎粗/主基因+多基因混合遗传模型Key words
waxy sorghum/maintainer line/backcross breeding/test cross/quantitative trait/plant height/stem diameter/major gene+polygene mixed genetic model分类
农业科技引用本文复制引用
韩永亮,方路斌,罗河月,崔江慧,郭群,常金华..测交鉴定结合数量性状遗传分析创制糯高粱保持系资源[J].湖北农业科学,2025,64(8):54-61,8.基金项目
河北省农业科技成果转化项目 （）
2025年邯郸市农业科学院自主创新项目 （）
