摘要
以强雌性苦瓜品系09C-51、09C-54和普通性型品系09C-57为亲本配制杂交组合,调查单株主茎50节位内的雌花节率。通过对两个组合的P1、P2、F1、F2、BC1P1各世代植株的性型观察,并经χ2测验,表明苦瓜强雌性性状由1对不完全显性基因控制。利用组合09C-51×09C-57的Pl、P2、Fl、F2群体的性型分离数据,进一步对性型进行数量遗传学分析,表明强雌性性状符合1对显性主基因+加性-显性多基因模型,说明苦瓜强雌性性状由1对主基因控制,且存在微效多基因的影响,其主基因遗传率为63.06%,多基因遗传率为26.96%。
Subgynoecious bitter melon(Momoridca charantia L.)line 09C-51,09C-54 and normal sexual line 09C-57 were crossed in this study.Female flower proportion within 50 nodes for each plant was counted.Through investigation and χ 2 test of P 1,P 2,F 1,F 2,BC 1 P 1 types in segregating population,found that the subgynoecious trait was controlled by one pair of incomplete dominant gene.Further more,by quantitative genetics analysis of the 09C-51,09C-57 and their P 1,P 2,F l,F 2 population,the subgynoecious inheritance was proved to correspond with major gene and polygene mixed inheritance model.The heritability of the major gene was 63.06% and that of polygenes was 26.96%.
出处
《中国蔬菜》
北大核心
2012年第08X期22-26,共5页
China Vegetables
基金
山东省潍坊市高层次人才引进项目
关键词
苦瓜
强雌性状
遗传分析
主基因+多基因
Bitter melon
Subgynoecious
Genetic analysis
Major gene and polygene
