利用分子标记辅助选育优质长粒香型软米水稻新品系“上师大19号”  

Development of a aromatic soft rice line “Shangshida No.19” with long grain by molecular marker-assisted selection

作　　者：胡兰 孙双燕 曹伟召 曾文秀 赵国超[1] 李建粤[1] HU Lan;SUN Shuangyan;CAO Weizhao;ZENG Wenxiu;ZHAO Guochao;LI Jianyue(College of Life Sciences,Shanghai Normal University,Shanghai 200234,China;Shanghai Shangshi Modern Agricultural Development Co.,Ltd.,Shanghai 202183,China)

机构地区：[1]上海师范大学生命科学院,上海200234 [2]上海上实现代农业开发有限公司,上海202183

出　　处：《上海农业学报》2020年第4期1-5,共5页Acta Agriculturae Shanghai

基　　金：上海市科委现代农业科技创新项目(16391900800)。

摘　　要：以香型软米水稻‘松早香1号’作为香味基因和软米基因供体亲本,以非香非软长粒型水稻‘嘉禾218’作为转育亲本,结合香味基因和软米基因分子标记辅助筛选,成功选育出长粒香型软米水稻品系"上师大19号"。试种试验表明:"上师大19号"水稻粒长7.2 mm,长宽比3.1;米外观好,透明度1级,精米直链淀粉含量8.0%,产量8 234.4 kg∕hm^2。"上师大19号"水稻对叶瘟、穗茎瘟和白叶枯病均具有较强的抗性,病情指数均为0,但略感纹枯病,病情指数为1.24。该水稻品系的成功选育将为上海地区推广长粒型的香型软米水稻奠定基础。"Shangshida No.19",a aromatic soft rice line with long grain,was successfully bred by molecular marker assisted screening combining aroma gene and soft rice gene,using aromatic soft rice’Songzaoxiang No.1’as donor parent of aroma gene and soft rice gene,and non-aromatic,non-soft,long grain rice’Jiahe 218’as backcross parent.The trial planting test results showed that the grain length of"Shangshida No.19"was 7.2 mm,the ratio of length to width was 3.1,the appearance of rice was good,the transparency was grade 1,the amylose content of milled rice was 8.0%,and the yield was 8234.4 kg/hm^2."Shangshida No.19"had strong resistance to leaf blast,panicle stem blast and bacterial blight,and the disease index was 0.But it was slightly susceptible to sheath blight,and the disease index was 1.24.The successful breeding of the new rice line"Shangshida No.19"will lay a foundation for popularizing long grain aromatic soft rice in Shanghai.

关 键 词：水稻 长粒 香米 软米 “上师大19号” 分子标记辅助育种 

分 类 号：S511.03[农业科学—作物学]