CAJ | 학술논문

利用包括基因与环境互作的加性-显性遗传模型对6个花椰菜品种(系)完全双列杂交实验的2年观察资料进行花球球径不同发育阶段的遗传分析.结果表明:年份间的环境差异对亲本和F1的球径表现影响较小,球径在整个发育期主要受加性效应控制,不存在基因型×环境互作效应,选用瑞雪70天、c-3、c-5为亲本配置组合,能够使其后代在10月中下旬前在平均球径的基础上增大球径;而福州80天和c-8这2个亲本的表现恰好相反.进一步对不同发育阶段的平均球径进行条件遗传分析发现,加性主效应和显性主效应在球径增大的大部分时期都有新的表达,且不易受到年份等外部条件的影响,但这些新表达的效应在10月12日之前和之后表现为相反的方向.成熟期球径给定不同发育时期性状的条件遗传分析表明,在各个时期均检测到显著的条件加性方差(10月24日除外)和条件显性方差,10月6日之前的净加性表达效应的作用占最终球径表现变异的88.8%.
이용포괄기인여배경호작적가성-현성유전모형대6개화야채품충(계)완전쌍렬잡교실험적2년관찰자료진행화구구경불동발육계단적유전분석.결과표명:년빈간적배경차이대친본화F1적구경표현영향교소,구경재정개발육기주요수가성효응공제,불존재기인형×배경호작효응,선용서설70천、c-3、c-5위친본배치조합,능구사기후대재10월중하순전재평균구경적기출상증대구경;이복주80천화c-8저2개친본적표현흡호상반.진일보대불동발육계단적평균구경진행조건유전분석발현,가성주효응화현성주효응재구경증대적대부분시기도유신적표체,차불역수도년빈등외부조건적영향,단저사신표체적효응재10월12일지전화지후표현위상반적방향.성숙기구경급정불동발육시기성상적조건유전분석표명,재각개시기균검측도현저적조건가성방차(10월24일제외)화조건현성방차,10월6일지전적정가성표체효응적작용점최종구경표현변이적88.8%.
An additive-dominant genetic model with genotype-environment(GE) interaction was employed to analyze the genetic behavior of head diameter of cauliflower at different developmental stages, based on 2-year data from 6×6 diallel crosses. The results indicate that head diameter of parents and F1 was mainly controlled by additive effects at whole developmental period, and the effect of environmental deviation of different years on it was less. Compared with genetic main effects, GE interaction effects played a minor and insignificant role on the head diameter. The predicted additive effects of head diameter at different developmental stages indicated that enhanced head diameter over population mean could be expected when Ruixue 70, c-3 and c-5 were selected as parents, while opposite phenomenon was observed when Fuzhou 80 and c-8 were selected. It was found that, by conditional variances and conditional additive effects, extra new additive and dominant effects were detected at most developmental periods, which were relatively stable under different environmental conditions. But interestingly, opposite direction was observed for these extra new additive and dominant effects before and after Oct.12. Significant conditional additive variance and conditional dominant variance were detected at most stages (except final stage conditioned on Oct.24 for conditional additive variance). Eighty-eight point eight percent of unconditional additive variation was contributed by net additive effects accumulated from initial time to Oct.6.