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茎瘤芥(榨菜)现蕾期的遗传分析

Study on Inheritance of Budding Period in Tumorous Stem Mustard

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利用现蕾期有较大差异的2个茎瘤芥自交系作为亲本配制了1个杂交组合,应用主基因+多基因混合遗传模型分离分析方法对其衍生后代家系群体P1、P2、F1、B1、B2 、F2现蕾期进行了分析.结果表明:杂交组合y154×b145的现蕾期受2对加性-显性-上位性主基因控制,主基因遗传率在B1、B2 、F2分别为47.22%、37.95%和46.45%;现蕾期改良时要有效地利用主基因,宜在中高世代选择.
0ne hybridized combinations between 2 self lines as parents with different budding period were used to analyze the inheritance of budding period in their progeny family groups P1,P2,F1,B 1,B2 and F2 by utilizing the method of joint segregation of major genes plus polygenes.The results showed that budding period in the cross of y145 × b145 was controlled by two major genes with additive-dominant-epistatic effects.The heritability of the major gene was 47.22 % in B1 generation,37.95 % in B2 generation,and 46.45 % in F2 generation.The major gene effects was important and should be utilized effectively in the breeding program.The improvement of budding period trait should be selected in middle and high generation.

Tumorous stem mustardBudding periodInheritance

刘义华、李娟、张召荣、赵守忠

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重庆市渝东南农业科学院,南方芥菜品种改良与栽培技术国家地方联合工程实验室,榨菜品种改良栽培技术重庆市工程实验室,重庆涪陵408000

茎瘤芥 现蕾期 遗传

重庆市科技攻关项目

CSTC-2009AC1199

2014

西南农业学报
四川,云南,贵州,广西,西藏及重庆省(区,市)农科院

西南农业学报

CSTPCDCSCD北大核心
影响因子:0.679
ISSN:1001-4829
年,卷(期):2014.27(6)
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