不同环境下杂交粳稻直链淀粉含量的遗传分析  

Genetic Analysis on Amylose Content of Japonica Hybrid Rice in Different Environments

作　　者：吕文彦[1] 武翠 程海涛[1] 邵国军[1] 曹萍[1] 马莲菊[3] 崔鑫福[1] 尹长斌[1] 徐兴伟[1] 

机构地区：[1]沈阳农业大学农学院,辽宁沈阳110161 [2]丹东市农业科学院,辽宁凤城118109 [3]沈阳师范大学化学与生命科学学院,辽宁沈阳110034

出　　处：《作物学报》2008年第4期724-728,共5页Acta Agronomica Sinica

基　　金：国家高技术研究发展计划(863计划)项目(2001AA241015);辽宁省自然科学基金项目(20032092);北方粳稻遗传育种生理生态实验室开放项目(06-03)

摘　　要：以粳稻三系材料组配的5×5不完全双列杂交亲本及F2、F3种子为试材,应用包括胚乳效应、细胞质效应、母体效应的三倍体种子性状遗传模型,对不同年份、不同穗位两种环境设计下的直链淀粉含量进行遗传分析。结果表明,两种环境下,直链淀粉含量的方差组成均以基因型方差为主。遗传主效应方差以胚乳加性方差为主。以穗位作为环境因子时,能检测到显著的细胞质方差,互作方差以直接显性×环境互作方差为主,其次是细胞质×环境互作方差,但对互作效应值的遗传预测表明,绝大部分品种所有粒位均以细胞质×环境的互作效应值最大,且细胞质×环境互作使不育系强、中势籽粒的直链淀粉含量降低、弱势粒直链淀粉含量提高,恢复系则相反,强、中势籽粒直链淀粉含量提高,弱势粒直链淀粉含量降低。以年份作为环境因子时,细胞质方差不显著,互作方差以母体显性×环境互作方差为主。A genetic model for triploid endosperm including endosperm effect, cytoplasmic effect, and maternal effect was used to analyze the amylose content （AC） of F2, F3 seeds and their parents derived from 5×5 incomplete diallel cross of japonica three lines rice, in different years, panicle positions, and two environments. The results showed that in the two environments, AC was controlled by genotype, with predominant endosperm additive effects. With panicle position as environmental factor, significant cytoplasmic variance （Vc） could be detected; for the interaction effect variances, direct dominant × environment variance （VDE） was primary and cytoplasmic × environment variance （VCE） was secondary. According to the genetic prediction of interaction effects, VCE was the biggest for different panicle positions in most cultivars, and cytoplasmic × environment effect caused AC decrease in the grains of middle and upper panicle positions and increase in grains of lower panicle position in CMS lines which had opposite performances to restorer lines. With year as environment factor, Vc was not significant; maternal dominant × environment variance （VDm） was the main component of interaction variance.

关 键 词：杂交粳稻 直链淀粉含量 环境 穗位 遗传分析 

分 类 号：S511.22[农业科学—作物学]