摘要
用包括基因型×环境互作效应的种子性状遗传模型，研究了籼粳亚种间杂交稻米脂肪含量的遗传特性，结果表明：在籼粳杂种中，脂肪含量的遗传表达主要受控于种子直接加性效应和母体加性效应，以前者为主．基因型X环境互作主要表现为显性（包括直接显性和母体显性）X环境以及细胞质X环境工作．直接近传率和母体遗传率都极显著．此外，根据遗传效应预测值对供试条本的利用价值作了评价．
Genetic analyses were conducted fot fat content of indicajmpnica hybrid rice byusing genetic medels with genotype x environment interaCtions for seed traits. The resultsindicated that the fat content in rice was mainly controlied simultaneously by seed directadditive and matemal additive effects, with the former predominating. Genotype x environmentinteractions expressed mainly as dommancex environment (including direct dondnance xenvironment and maternal dondnance x environment) and cytoplasm x environmentinteractions- Direct and matemal heritabilities were highly significant. The potential valuesof parehtal lines for the improvement of fat content were discussed in respeet to predictedvalues of genetic effects.
出处
《热带亚热带植物学报》
CAS
CSCD
1998年第4期347-351,共5页
Journal of Tropical and Subtropical Botany
基金
国家教委"跨世纪优秀人才"专项基金
湖北省教委基金!97A008
关键词
水稻
籼粳杂交
脂肪含量
遗传分析
基因型
Rice (Oryza sativa)
Indica-japonica hybridization
Fat content
Geneticanalysis
Genotype
Environment interaction
