转BAR基因水稻的抗性遗传、生理特性和农艺性状研究  

Resistant inheritance,physiological and agricultural characters of BAR-transgenic rice.

作　　者：段发平[1] 郑枫[1] 段俊[1] 黎垣庆[1] 梁承邺[1] 

机构地区：[1]中国科学院华南植物园,广州510650

出　　处：《浙江大学学报（农业与生命科学版）》2006年第4期355-359,共5页Journal of Zhejiang University:Agriculture and Life Sciences

基　　金：广州市科技基金资助项目(2002J1-C0231)

摘　　要：为了明确BAR基因对水稻的影响,对转BAR基因的Bengal HU-10、Bengal HC-11、CypressPB-6、Cypress PB-13的抗性遗传、生理特性和农艺性状进行了研究,结果表明,它们对除草剂Liberty的抗性均受一对显性核基因控制,在这4个实验材料中,BAR基因在染色体上的整合位置互不等位,株高、生育期和每穗粒数等农艺性状也不相同.转BAR基因水稻与原亲本比较,叶片中叶绿素含量、光合速率和叶绿素荧光参数、GS酶活性等均未有明显差异,但用Liberty处理2 d后,上述生理性状变化明显,且在这4个转BAR基因材料之间也有显著差异,说明与BAR基因的插入位置有关.In order to investigate the effect of BAR gene on rice, the characteristics of inheritance, physiology and agriculture of 4 BAR-transgenic rice （Bengal HU-10, Bengal HC-11, Cypress PB-6, Cypress PB-13） were studied. The results indicated that the resistance of this 4 BAR-transgenic rice to herbicide （Liberty） was controlled by a single dominant nuclear gene. The inserted locus of BAR gene and agricultural properties including plant height, growth period and grain number per panicle were different among the 4 BAR-transgenic rice. There were no evident differences in chlorophyll content, photosynthetic rate, parameters of chlorophyll fluorescence and glutarnine synthetase activity etc in leaves between BAR-transgenic rice and the original parents. However, the above physiological characters changed significantly and were significantly different between each BAR-transgenic rice in leaves 2 days later after spraying Liberty. The above results showed that the change of physiological characters was related to the inserted locus of BAR gene.

关 键 词：转BAR基因水稻 抗性遗传 生理特性 农艺性状 

分 类 号：Q81[生物学—生物工程]