福建农业学报2025，Vol.40Issue(4)：341-348,8.DOI:10.19303/j.issn.1008-0384.2025.04.003
基于MAS技术提高水稻恢复系明恢1831的碱消值
Improving Alkali Spreading Value of Minghui 1831 Rice by Means of MAS-assisted Technology
摘要
Abstract
[Objective]Molecular marker-assisted selection(MAS)was applied in breeding to improve the alkali spreading value(ASV)of Minghui 1831.[Method]The high-ASV gene of Mingxiang 510 was introduced to the blast-resistant,aromatic Minghui 1831 using backcross breeding,MAS,and ASV detection.Genetic similarity between Minghui 1831 and the improved lines was analyzed based on 48 pairs of SSR primers.Main agronomic and some quality traits of them,as well as the combinations between Minghui 1831 and 4 sterile lines including Mingtai A and Tianxiang 2A,were compared.[Results]The ZiS_1_ALK molecular markers in the BC3F2 population were used to identify 8 homozygous high-ASV lines.Of which,MG-2,MG-3,and MG-6 were similar in genetic background to the recurrent parent,Minghui 1831,while superior on some agronomic traits and grain length/width ratio.Meanwhile,the combining ability remained intact.[Conclusion]Three newly bred high-ASV rice lines were successfully obtained that inherited the desirable characteristics and combining ability of their parent,Minghui 1831.关键词
水稻/明恢1831/碱消值/分子标记辅助选择Key words
rice/Minghui 1831/alkali spreading value/molecular marker-assisted selection分类
农业科技引用本文复制引用
邹文广,候新坡,马彬林,卓伟,杨旺兴,杨腾帮,许旭明..基于MAS技术提高水稻恢复系明恢1831的碱消值[J].福建农业学报,2025,40(4):341-348,8.基金项目
福建省科技厅引导性项目(2022N0038) （2022N0038）
