02428×合系35 RILs群体糙米和发芽糙米γ-氨基丁酸、抗性淀粉的遗传分析  

Genetic Analysis of γ-aminobutyric Acid and Resistant Starch Content between Germinated Brown Rice and Brown Rice of 02428×Hexi 35 RILs Group

作　　者：杨涛[1] 杨武振[2] 王荔[2] 曾亚文[1] 文国松[2] 杜娟[1] 杨树明[1] 普晓英[1] 

机构地区：[1]云南省农业科学院生物技术与种质资源研究所/云南省农业生物技术重点实验室/农业部西南作物基因资源与种质创制重点实验室,昆明650205 [2]云南农业大学农学与生物技术学院,昆明650201

出　　处：《植物遗传资源学报》2015年第1期205-209,共5页Journal of Plant Genetic Resources

基　　金：云南省重点新产品开发项目(2010BB001);国家自然科学基金(31060186);云南省技术创新人才培养项目(2011CI059;2012HB050)

摘　　要：以水稻02428×合系35的RILs群体及其亲本糙米和发芽糙米为材料,对糙米、发芽糙米各222个群体样品的γ-氨基丁酸、抗性淀粉含量进行测定,以期选育出高γ-氨基丁酸、高抗性淀粉的水稻新品种。研究结果表明,重组自交系糙米、发芽糙米γ-氨基丁酸含量差异不大,群体间存在广泛变异,由主效基因控制。重组自交系糙米、发芽糙米抗性淀粉含量差异大,发芽糙米抗性淀粉平均含量是该群体糙米的1.2倍,群体间存在广泛变异,呈偏态分布。高海拔冷凉气候有利于糙米高抗性淀粉含量的提升与进化。本研究可以为功能水稻的遗传及品种选育提供一定的理论依据。The γ-aminobutyric acid （GABA） and resistant starch （RS） content were studied based on germinated brown rice and brown rice of 222 RILs as well as their parents to breed new varieties with high content. The showed that the difference of GABA content between germinated brown rice and brown rice of RILs populati results on was not significant. GABA content presented a wide range of genetic variation in germinated brown rice and brown rice and controlled by major gene. RS content in germinated brown rice was 1.2 times as much as the brown rice. RS content presented a wide range of genetic variation in germinated brown rice and brown rice, but all appeared the skewed distribution. High altitude and cold climate were effective for improvement and evolution of high content of resistant starch of brown rice. This study could be a theoretical basis for genetic and breeding of the functional rice.

关 键 词：重组自交系 Γ-氨基丁酸 抗性淀粉 糙米 遗传分析 

分 类 号：S511[农业科学—作物学]