大豆主要生育期基因型鉴定与分析
Identification and analysis of major maturity genotypes in soybean
刘念析 1钱雪艳 1邱红梅 1刘月 1厉志 1刘佳 1王英男 1谭化 1刘晓冬 1王玉民 1董英山 1李玉秋1
作者信息
- 1. 吉林省农业科学院<中国农业科技东北创新中心>,吉林 长春 130033
- 折叠
摘要
大豆是光周期敏感作物,大豆的生育期除了受到环境条件的影响,还受到遗传因素的调控.目前的研究发现,调控大豆开花和成熟的位点包括E1～E12 和J基因,其中E1～E4 是调控大豆开花和成熟的主要基因.本研究鉴定了 250 份大豆材料的E1～E4 基因型及开花、成熟表型,通过关联分析发现,E1、E3 基因与始花期、成熟期间的关系最密切,显性的E1、E3 基因均有延迟开花的作用,隐性变异由于功能部分或完全丧失,导致开花提前.结果显示,大豆基因型组合可分为 10 组,分别为e1-nle2e4、e1-nlE2E3e4、e1-nle2E4、e1-nlE2E4、e1-asE2E4、e2e3e4、e1-ase2E4、E1e2E4、E1E2e3e4、E1E2E4,不同基因型组合决定了大豆生育期的多样化和对不同生态区的适应性.本研究结果为分子设计育种提供了分子模型,对于培育特定生态区的大豆品种具有重要意义.
Abstract
Soybean is a photoperiod sensitive crop.The maturity of soybean is not only affected by environmental con-ditions,but also regulated by genetic factors.At present,E1-E12 and J genes were found to regulate the flowering and ripe-ning of soybean,among which E1-E4 were the main genes regulating the flowering and ripening of soybean.In this study,250 soybean materials with E1-E4 genotypes and flowering and maturity phenotypes were identified.Association analysis showed that E1 and E3 genes were most closely related to the first flowering and maturity stages.Dominant E1 and E3 genes delayed flowering,while recessive variation caused early flowering due to partial or complete loss of function.In this study,soybean genotype combinations could be divided into 10 groups,namely e1-nle2e4,e1-nlE2E3e4,e1-nle2E4,e1-nlE2E4,e1-asE2E4,e2e3e4,e1-ase2E4,E1e2E4,E1E2e3e4,E1E2E4.Different genotype combinations determined the diversification of soybean growth period and its adaptability to different ecological zones.The results of this study provide a molecular prediction model for molecular design breeding,which is important for breeding soybean varieties in specific ecological zones.
关键词
大豆/生育期/基因型/分子育种模型Key words
soybean/growth period/genotype/molecular breeding model引用本文复制引用
出版年
2024
国家科技期刊平台
NSTL
维普
万方数据