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选用13个小麦亲本基因型及其F1代进行花药培养,测定了其中6个基因型的配合力,初步分析了花药培养力的遗传控制,对白化苗的DNA进行了随机引物扩增。结果表明,培养力在基因型间的差异十分显著,其遗传控制非常复杂,各种遗传学效应都可能存在,表现为多基因控制的数量性状遗传,包括显性效应、加性效应、互作效应、胞质效应和核质互作效应等;白化苗的发生由基因突变引起,第一次为白化苗的发生提供了分子遗传学证据。建议在花培育种工作中选用高培养力、高配合力亲本配制组合,并继续改进培养基,通过在培养基中添加叶绿素合成的中间物质或其它生理活性物质来控制白化苗的发生。
Thirteen wheat parental genotypes and their F1 generation were selected for anther culture. The combining ability of six genotypes was determined. The genetic control of anther culture ability was preliminary analyzed. The DNA of albino seedling was amplified by random primers. The results showed that there were significant differences in culturability among genotypes. The genetic control was very complicated and all kinds of genetic effects were likely to exist. The results showed that the inheritance of quantitative traits was controlled by multiple genes, including dominant effect, additive effect, interaction Effect, cytoplasmic effect and nuclear-cytoplasmic interaction effect; the occurrence of albino seedling is caused by gene mutation, and the first time provides molecular genetic evidence for the occurrence of albino seedling. It is suggested to choose the combination of high culture ability and high combining ability parents to improve the culture medium and to control the occurrence of albino seedling by adding the intermediate of chlorophyll synthesis or other physiologically active substances in the culture medium.