摘要
５个亲本按ＧｒｉｆｆｉｎｇＩ配置２０个正反交组合，研究了脂肪酸组份含量的正反交效应和配合力。结果为：１、Ｆ１代正反交组合油酸、亚油酸、亚麻酸含量群体平均值间无显著差异。表明无正反交效应。２、棕榈酸、硬脂肪、油酸、亚油酸及亚麻酸等５种脂肪酸含量的一般配合力方差（Ｍ．Ｓ．ｇ）与特殊配合力方差（Ｍ．Ｓ．ｓ）均显著，以一般配合力方差占优势（Ｍ．Ｓ．ｇ／Ｍ．Ｓ．ｓ值为４．７５～１８．５４），表明均以加性效应遗传为主。３、５种脂肪酸含量的一般配合力效应值与亲本值间为显著或极显著正相关（ｒ＝０．９４８～０．９９６），特殊配合力效应值与一般配合力效应值间关系不密切。
reciprocal crosses by 5 parents according to Griffing I design were used to study the reciprocal cross effect and combining ability of fatty acid compositions.The results showed that both M.S.g and M.S.s were significant in genetic variation for palmitic acid,stearic acid,oleic acid,linoleic acid and linolenic acid,and M. S.g occupied a dominent position,the ratios of M.A.g and M.S.s were 4.75- 18.54.It demositrated that additive effect played an important role in the inheritance of fatty acid compositions.Values of gi for the five kinds of fatty acid were significantly or very significantly positively correlated with the fatty acid content of parents,the correlation coefficients were 0. 948- 0. 996,sij values had no close correlation with gi values.
出处
《大豆科学》
CSCD
北大核心
1994年第1期9-14,共6页
Soybean Science
关键词
大豆
脂肪酸
正反交效应
配合力
Soybean
Fatty acid compositions
Reciprocal cross effect
Combining ability
