寒地粳稻品种功能营养品质分析  

Functional Nutrition Quality Analysis of Japonica Rice( Oryza sativa L. ) Varieties in the Cold Region

作　　者：胡月婷[1] 王敬国[1] 刘化龙[1] 孙健[1] 孙晓雪[1] 赵宏伟[1] 邹德堂[1] 

机构地区：[1]东北农业大学农学院,哈尔滨150030

出　　处：《植物遗传资源学报》2016年第5期840-845,共6页Journal of Plant Genetic Resources

基　　金：黑龙江省重大科技招标项目(GA14B102);"十二五"农村领域国家科技计划课题(2013BAD20B04)

摘　　要：功能型稻米因其具有调节人体生理功能、改善人体健康等特点,越来越受到人们的重视。本研究对226份寒地粳稻品种的6种功能营养品质进行了遗传变异、相关分析和主成分分析。结果表明,2年间各功能营养品质差异不显著,赖氨酸、谷蛋白、γ-氨基丁酸、总黄酮含量、平均胚重和胚占糙米重在226份寒地粳稻品种中均呈现较大的变异,其中平均胚重的变异系数最大为92.17%,总黄酮含量的变异系数最小为11.51%。绥粳3号、绥粳5号、牡丹江21号、合粳1号、牡丹江22号、龙糯2号、系选1号7个品种,同时具有2种功能营养品质优良的特点。赖氨酸含量与平均胚重和胚占糙米重呈极显著正相关,总黄酮含量与γ-氨基丁酸含量呈显著负相关,与谷蛋白含量呈显著正相关。胚型因子、黄酮和谷蛋白型因子、γ-氨基丁酸型因子的累计贡献率达到69.149%,是影响寒地粳稻功能营养品质的主要因子。在功能型稻米品种选育过程中,应首先注意对巨胚、高γ-氨基丁酸和低谷蛋白的选择,并可以利用分子标记辅助选择或转基因育种手段,实现多个功能营养品质性状的聚合育种。Functional rice has been paid more and more attention because of the functions of adjusting human body＇s physiological function, improving human health and other characteristics. This study was conducted to analysis the genetic variation, correlation and principal component of 6 functional nutrition qualities of 226 japonica rice varieties in the cold region. Results showed that there were no significant difference in each functional nutrition qualities in two years, lysine, gluten,γ-Aminobutyrie Acid （ GABA）, flavonoids and average embryo weight, embryo of brown rice all had large variation of the 226 japonica rice varieties in the cold region. Among them, average embryo weight had the biggest variable coefficient, of 92. 17%, flavonoids had the smallest variable coefficient, of 11.51%. Seven varieties（ Suijing 3, Sujing 5, Mudanjing 21, Hejing 1, Mudanjiang 22, Longnuo 2, Xixuan 1 ） had two higher functional nutrition components. Lysine content and average embryo weight, embryo of brown rice were all had extremely significant positive correlation. Flavonoids content was significant negative correlative with GABA and significant positive correlative with gluten. The cumulative contribution of the embryo factor, flavonoids and gluten factor,GABA factor was 69. 149%. In the process of functional variety breeding,we should pay attention to select big embryo, high GABA and low gluten and use marker-assisted selection or transgenic breeding methods to realize polymerization breeding of multiple functional nutrition quality traits.

关 键 词：寒地粳稻 功能营养品质 相关分析 主成分分析 

分 类 号：S511.22[农业科学—作物学]