YM型小麦温敏雄性不育系ATM3314育性遗传研究  

Inheritance of Male Fertility in YM-type Thermo-sensitive Male Sterile Wheat Line ATM3314

作　　者：周菊红[1] 李轲[1] 何蓓如[1] 胡银岗[1,2,3] 

机构地区：[1]西北农林科技大学农学院,陕西杨凌712100 [2]国家小麦改良中心杨凌分中心,陕西杨凌712100 [3]陕西省农业分子生物学重点实验室,陕西杨凌712100

出　　处：《西北农业学报》2010年第8期38-43,共6页Acta Agriculturae Boreali-occidentalis Sinica

基　　金：教育部重点科研项目(105166);教育部春晖计划启动项目(Z2005-2-7104)

摘　　要：以YM型小麦温敏雄性不育系ATM3314与恢复系中国春配制杂交组合,连续2 a对该组合的P1、F1、P2和F2代的育性进行了调查,采用植物数量性状主基因+多基因混合模型4世代联合分析法对YM型小麦温敏雄性不育系育性遗传进行了研究。结果表明,YM型小麦温敏雄性不育系育性受2对加性-显性-上位性主基因+多基因联合控制,主基因遗传率很高,分别为95.62%和90.32%;2008年为加性-显性-上位性多基因控制,2009年为加性-显性多基因控制,多基因遗传率分别为0.058%和6.11%,表明环境对其育性波动有较大影响。Two-line hybrid wheat system is an important way to use heterosis in wheat.To reveal the inheritance of male fertility in thermo-sensitive male sterile（TMS） wheat lines is important for the breeding of TMS wheat line and application of two-line hybrid wheat theoretically and practically.In this study,the inheritance of male fertility in TMS wheat line was investigated by using 4 generations joint analysis method of mixed major gene plus polygene mixed inheritance model based on the fertility data of the P1,P2,F1 and F2 populations from the cross between YM-type TMS wheat line ATM3314 and restorer line China Spring in two consecutive years.The results showed that the fertility of YM-type TMS wheat lines was controlled by two additive-dominance-epitasis major genes plus polygene.The heritability of major genes were very high with 95.62% and 90.32%,and combined with additive-dominance-epitasis polygene in 2008 and additive-dominance polygene in 2009 with polygenic heritability of 0.058% and 6.11%,respectively,which reflected the effects of environment on the variation of male fertility.

关 键 词：小麦 温敏雄性不育 育性 主基因+多基因 

分 类 号：S512.1[农业科学—作物学] S334