导入反义Wx基因对珍汕97A及其F_1稻米品质的影响  

Effects of Introducing Antisense Wx Gene on Grain Quality of Rice Cultivar Zhenshan97A and Its F_1 Generations

作　　者：方加海[1] 魏雪娇[2] 王来春[1] 

机构地区：[1]江西农业大学作物生理生态与遗传育种教育部重点实验室,江西南昌330045 [2]江西农业大学国土资源与环境学院,江西南昌330045

出　　处：《江西农业大学学报》2010年第3期436-439,共4页Acta Agriculturae Universitatis Jiangxiensis

基　　金：江西省科技厅项目(赣科发计字[2000]130号);江西省教育厅项目(赣财教[2003]73号;GJJ08184)

摘　　要：利用转反义Wx基因珍汕97B阳性转化植株,通过单株选择、回交转育,育成转反义Wx基因珍汕97A——优质珍汕97A。优质珍汕97A与珍汕97A比较,直链淀粉含量从25.6%下降到9.3%,胶稠度从45 mm提高到86 mm,垩白度从23.5%下降到7.1%;利用优质珍汕97A配制的F1稻米品质具有同样效应。Through single plant selection and successive backcross,the transgenic rice Zhenshan 97A with antisense Waxy（Wx） gene,called the fine-quality Zhenshan 97A,was bred from the transgenic lines of Zhenshan 97B which positively expressed antisense Wx gene.Compared with non-transgenic Zhenshan 97A,the amylose content in grains of the transgenic Zhenshan 97A（fine-quality Zhenshan 97A） decreased by 16.3%,and the chalkiness degree decreased by 16.4%,while the gel consistency increased by 41mm.Its hybrid F1 generations had the same effect on rice quality as the fine-quality Zhenshan 97A.

关 键 词：反义WX基因 珍汕97A 稻米品质 

分 类 号：S511.032[农业科学—作物学]