云南稻核心种质回交后代糙米GABA含量分析  

An analysis on the content of γ-aminobutyric acid in the backcross hybrids of Indica and Japonica rice core collections in Yunnan

作　　者：靳祥[1,2] 张明喜[2,3] 曾亚文[2] 杨树明[2] 杜娟[2] 普晓英[2] 

机构地区：[1]云南大学生命科学学院,云南昆明650091 [2]云南省农业科学院生物技术与种质资源研究所,云南昆明650223 [3]昆明田康科技有限公司,云南昆明650231

出　　处：《云南大学学报（自然科学版）》2011年第3期360-365,共6页Journal of Yunnan University(Natural Sciences Edition)

基　　金：国家自然科学基金资助项目(30160186);云南省重点新产品开发计划资助项目(2010BB001);昆明市创新型试点企业资助项目(昆科计字10N060204号)

摘　　要：为研究云南稻核心种质回交后代糙米GABA含量,实验分别以143份云南籼稻核心种质与滇屯502,241份云南粳稻核心种质与合系35配制的杂种F6,BC2F4,BC3F3,BC4F2为材料,采用比色法对其糙米GABA含量进行测定分析.结果表明,粳稻回交后代GABA含量高于籼稻回交后代;有色米高于无色米;不同回交世代GABA含量差异较大,籼稻的规律是(mg/(100 g)),BC2F4(9.50)>BC3F3(7.73)>轮回亲本(3.72)>BC4F2(3.3);粳稻的规律是,轮回亲本(12.28)>BC2F4(8.77)>BC3F3(6.11)>BC4F2(5.37).可见,在水稻GABA高含量育种方面,对早世代材料选择更易获得高GABA材料.The generations F6,BC2F4,BC3F3,BC4F2 were prepared by the crosses,which were producted by Diantun 502 and 143 Indica rice core collections,the other samples were producted by Hexi 35 and 241 Japonica rice core collections.The study were proceed in Yunnan to determine and analyze GABA content of brown rice by spectrophotometry.The results show that,the content which Japonica rice backcross generations GABA is higher than Indica rice backcross generations,and the colored rice is higher than the colorless.GABA content are different in different backcross generations,for Indica,BC2F4（9.50）BC3F3（7.73）recurrent parent（3.72）BC4F2（3.3）,for Japonica,recurrent parent（12.28）BC2F4（8.77）BC3F3（6.11）BC4F2（5.37）.Overall,it is more accessible to get the GABA material from the early generations during in rice breeding.

关 键 词：Γ-氨基丁酸 核心种质 云南稻 回交 

分 类 号：S511[农业科学—作物学]