小麦宁春4号及其亲本农艺性状·品质性状及相关背景基因的研究

摘要

[目的]研究在同一环境条件下宁春4号及其亲本的农艺、产量及品质性状表现,并对其相关性状的背景基因分布进行分子检测.[方法]以宁春4号及其亲本索诺拉64、宏图、阿勃碧玉麦为材料,对其农艺性状、品质性状进行测定,并用分子检测法对其遗传变异规律进行分析.[结果]宁春4号遗传了索诺拉64大穗,红粒,硬质和宏图千粒重高等优点,同时也遗传了索诺拉64晚熟、宏图分蘖力低等缺点;宁春4号籽粒品质略低于索诺拉64;宁春4号具有5+10的优质亚基,具有良好的面团流变学特性;宁春4号遗传了宏图长光周期特性和不抗慢叶锈和条锈特性及双亲低PPO活性、高黄色素含量.[结论]该研究结果为小麦种质资源的遗传分析奠定了基础.%[ Objective ] The aim of this study was to observe the agronomic, yield and quality traits of Ningchun No. 4 and its parents under the same environmental conditions, as well as to carry out molecular detection on the background genes distribution of the corresponding traits.[ Method] Ningchun No. 4 and its parents Sonora 64, Hongtu, Abo, Biyumai were used as materials to detect the agronomic and quality traits, as well as to analyze the genetic variation laws by molecular determination method. [ Result] Ningchun No. 4 had inherited the advantages of bigger spike, red and hard grain from Sonora 64 and higher 1 000-grain weight from Hongtu. However, it had also inherited the disadvantages of late-maturing from Sonora 64 and lower tillering ability from Hongtu; the grain quality of Ningchun No. 4 was slightly lower than the Sonora 64; Ningchun No. 4 had 5 + 10 subunit with high quality, which had good dough rheologieal properties. Ningchun No. 4 had inherited the long photoperiod characteristics and no-resistant to slow-leaf rusting aad stripe rust characteristics from Hongtu and low PPO activity,high yellow pigments content from two parents. [ Conclusion ] This study ahd provided basis for genetic analysis of wheat gennplasm resource.