作 者：
王玉刚;修文超;沈宝宇;周泽峰;古君伶;聂晓巍;冯辉
单 位：
沈阳农业大学园艺学院;辽宁省经济作物研究所;北京市顺义区植保植检站
摘 要：
以角果差异显著的白菜自交不亲和系(P1)和白菜型油菜自交系(P2)为亲本及杂交获得的4个基本世代(P1、P2、F1、F2)为材料,应用植物数量性状主基因+多基因混合遗传模型对其角果相关性状进行遗传分析。结果表明,芸薹种作物的角果长度(SPL)性状及喙长(SBL)性状均受加性-显性-上位性多基因控制(C-0模型),多基因遗传率分别为83.16%和68.67%;角果宽度(SPW)性状受2对加性-显性-上位性主基因+加性-显性-上位性多基因控制(E-0模型),其主基因遗传率为20.40%,多基因遗传率为78.34%。角果相关各性状均以多基因遗传为主,角果宽度性状受环境因素影响较小,为1.26%;角果长度、喙长受环境因素影响较大,分别达16.08%和25.36%。针对芸薹种作物角果性状的改良要以多基因为主,并注意环境条件影响。
译 名：
Genetic Analysis of Pod Correlated Traits in Brassica campestris
作 者：
WANG Yu-gang1,XIU Wen-chao1,SHEN Bao-yu2,ZHOU Ze-feng3,GU Jun-ling3,NIE Xiao-wei3,FENG Hui1(1College of Horticulture,Shenyang Agricultural University,Shenyang 110866; 2Liaoning Cash Crop Institute,Liaoyang 111000; 3Shunyi District of Plant Protection and Quarantine Station,Beijing 101300)
关键词：
Brassica campestris;inheritance;silique;major-gene plus poly-gene
摘 要：
Two parents of Brassica campestris(P1,P2) with significant difference in silique traits,and their corresponding four basic generations(P1,P2,F1,and F2) were used to analyze the inheritance of silique correlated traits by applying mixed major-gene plus poly-gene inheritance model.The results indicated that both the silique length(SPL) and the seed beak length(SBL) were controlled by poly-gene with additive-dominant-epistatic effects(C-0 model),and the heritabilities of poly-gene for SPL and SBL were 83.16% and 68.67%,respectively.The silique width(SPW) was controlled by two major genes with additive-dominant-epistatic effects plus poly-gene with additive-dominant-epistatic effects(E-0 model),and the heritability of major genes was 20.40%,while poly-genes was 78.34%.The silique width(SPW) was less affected by environmental factors,conversely to the SPL and SBL,which influenced by environmental factors were 16.08% and 25.36%,respectively.This implied that in the genetic improvement of silique correlated trait poly-gene was a main factor and environment factors should also be mentioned.
