豇豆始花节位遗传分析  

Inheritance Analysis of the First Flower Node of Cowpea

作　　者：于海龙[1] 古瑜[1] 韩启厚[1] 乔军[1] 

机构地区：[1]天津科润蔬菜研究所/蔬菜种质创新国家重点实验室,天津300384

出　　处：《中国农学通报》2017年第22期58-62,共5页Chinese Agricultural Science Bulletin

基　　金：国家科技支撑计划项目"蔬菜商业化育种技术研究与示范"(2014BAD01B08)子项"黄瓜等主要蔬菜商业化育种技术研究与示范"(2014BAD01B0802);天津市农科院院长基金项目"早熟绿荚豇豆新品系选育"(13008);天津市科技创新体系及平台建设计划"设施精品蔬菜分子育种技术平台建设"(14TXSYJC00463)

摘　　要：为明确豇豆始花节位的遗传规律,应用数量性状的主基因+多基因遗传模型6世代联合分析方法,调查豇豆杂交组合‘Ju08-10’ב丰豇10号’的6个世代始花节位。利用南京农业大学章元明教授提供的植物主基因+多基因遗传分析软件,计算最适合的遗传模型及相应的遗传参数。结果显示,‘Ju08-10’ב丰豇10号’杂交组合的始花节位遗传符合加性-显性-上位性多基因模型,无主基因存在,F2群体多基因遗传率为71.64%,环境方差占表现型方差的比例为28.36%,说明豇豆始花节位是多基因控制的数量性状,始花节位易受环境因素的影响,早熟性(较低的始花节位)可以通过杂交后代选择实现,但定向选择会有较好的效果。To clarify the genetic law of the first flower node in cowpea（Vigna unguiculata）,6 generations of the first flower node from the cross ‘Ju08-10’בFengjiang 10’ was investigated with the major gene plus polygene inheritance model 6 generation joint analysis method of quantitative traits.The genetic analysis software which was provided by Professor Zhang Yuanming of Nanjing Agricultural University,was used to calculate the most suitable genetic model and the corresponding genetic parameters.The results showed that the first flower node of the cross ‘Ju08-10’בFengjiang 10’ was controlled by additive-dominance-interaction polygene model,no major gene.Heritability value of polygene of the cross ‘Ju08-10’בFengjiang 10’ of F2 population was estimated as 71.64%.Environment VAR of the cross ‘Ju08-10’× ‘Fengjiang 10’ of F2 population was 28.36%in total VAR.We concluded that the first flower node of cowpea was quantitative trait and was controlled by polygene.Environment played an important role in the trait inheritance.Early matured（lower node）trait could be made by hybrid vigor,but directional selection had better effects.

关 键 词：豇豆 始花节位 遗传 主基因 多基因 

分 类 号：S643.4[农业科学—蔬菜学]