CAJ | 학술논문

以茎/叶性状不同的3个茎瘤芥自交系为亲本配制了2个杂交组合,对其P1、P2、F1、F2群体茎/叶性状的遗传体系应用主基因+多基因混合遗传模型分离分析方法进行了研究.结果表明:2个杂交组合的茎/叶性状遗传体系均由1对加性-显性主基因+加性-显性-上位性多基因(D-0)构成;F2世代的主基因遗传率为60.17%~68.74%,多基因遗传率为6.83%~10.23%;主基因以加性效应为主,且均有不同程度的负向显性效应.
이경/협성상불동적3개경류개자교계위친본배제료2개잡교조합,대기P1、P2、F1、F2군체경/협성상적유전체계응용주기인+다기인혼합유전모형분리분석방법진행료연구.결과표명:2개잡교조합적경/협성상유전체계균유1대가성-현성주기인+가성-현성-상위성다기인(D-0)구성;F2세대적주기인유전솔위60.17%~68.74%,다기인유전솔위6.83%~10.23%;주기인이가성효응위주,차균유불동정도적부향현성효응.
Three inbred lines with different ratio of stem and leaf were used as parents and devel-oped 2 hybrids. Their genetic systems in stem/leaf ratio of P1,P2,F1 and F2 were analyzed by method of joint segregation analysis of major gene plus polygenes mixed inheritance model.The results showed that the genetic systems in stem/leaf ratio of these 2 hybridized combinations were constructed by one pair of additive-dominant major genes plus additive-dominant-epistatic polygenes (D-O).Heritability of the major genes and polygenes in F2 generations were 60.17%-68.74% and 6.83%-10.23%,respec-tively.The additive effects of the major genes were more important than their dominant effects,and dominant effects showed negative in various degrees in 2 hybridized combinations.