中国农业大学学报2012，Vol.17Issue(6)：111-116,6.
甜高粱茎秆含糖量相关性状的遗传分析
Genetic analysis of stalk sugar content related traits in sweet sorghum(Sorghum bicolor)
摘要
Abstract
A genetic segregation analysis of stalk sugar content related traits was made with the parents of LR625,a grain sorghum variety(P1),Rio,a sweet sorghum variety(P2) and their F1 and F2:3 populations by using the mixed major gene plus poly-gene inheritance model.The results suggested that the genetic control of the stalk sugar content(brix) is consistent with E-1 model,the trait is controlled by two major genes with additive-dominant-epistatic effects and poly-genes.The poly-genes effects were higher than major gene effects,and the heritability of major genes and poly-genes were 48.98% and 39.52%,respectively.Environmental effects accounted for 11.59% of total phenotypic variance.Juice ratio was consistent with B-5 model,the trait is controlled by two major genes with dominant effects.Heritability account for 75.3% of phenotypic variation,and environmental factors accounted for 24.7%.Stalk fresh weight was consistent with E-2 model,the trait was controlled by two major genes with additive-dominant effects and poly-genes with additive-dominant effects.Heritability of major genes was 58.85%,and heritability of poly-genes was 17.63%,environmental factor effects accounted for 23.52%.关键词
甜高粱/茎秆含糖量/出汁率/茎秆鲜重/遗传分析Key words
sweet sorghum/stalk sugar content/juice ratio/stalk fresh weight/genetic analysis分类
农业科技引用本文复制引用
卢峰,邹剑秋,段有厚,吕香玲..甜高粱茎秆含糖量相关性状的遗传分析[J].中国农业大学学报,2012,17(6):111-116,6.基金项目
农业部现代农业产业技术体系项目 （）
国际合作项目 （）
948项目 （）
