除草剂(草丁膦)抗性基因的遗传与利用  

Genetic Study on the Herbicide (Liberty)Resistibility and Its Application on Utilizing Heterosis in Rice

作　　者：黎垣庆[1] 刘刚[2] 严文贵 许秋生[1] 

机构地区：[1]中国科学院华南植物研究所,广州510650 [2]中国科学院成都生物研究所,成都610041 [3]严氏杂种优势与除草剂公司,美国斯图加特ar72160

出　　处：《Acta Botanica Sinica》1999年第12期1348-1350,共3页Acta Botanica Sinica（植物学报：英文版）

摘　　要：Threerestoringlines (Minghui 6 3,Ce 6 4andTeqing)asfemaleparentswerecrossedwithherbi cide_resistanttransgeniccultivars (Bengal_Hu10andGulfmont)asmaleparents .Geneticanalysisongenera tionsofF1,F2 andBC1indicatedthattheresistancetotheherbicide (Liberty)wascontrolledbyasingledomi nantnucleargene .Theresistancetotheherbicidewillworkasamarkerforthetruehybridfromcrossingwith themaleparent ,butnotforallotherplantsfromeitherselfing ,orintracrossinginfemaleparentpopulation . Aftertheapplicationoftheherbicide ,allplantsexceptthetruehybridwereeliminated .Withtheaidofthis technology ,thestrictrequirementofcompletesterilityformalesterilelineincropscanbereduced .Itwillbe beneficialnotonlyforbreedingnewexcellentmalesterilelines ,butalsoforcommercializingchemicallyin ducedmalesterilesystemincrops .Threerestoringlines (Minghui 6 3,Ce 6 4andTeqing)asfemaleparentswerecrossedwithherbi cide_resistanttransgeniccultivars (Bengal_Hu10andGulfmont)asmaleparents .Geneticanalysisongenera tionsofF1,F2 andBC1indicatedthattheresistancetotheherbicide (Liberty)wascontrolledbyasingledomi nantnucleargene .Theresistancetotheherbicidewillworkasamarkerforthetruehybridfromcrossingwith themaleparent ,butnotforallotherplantsfromeitherselfing ,orintracrossinginfemaleparentpopulation . Aftertheapplicationoftheherbicide ,allplantsexceptthetruehybridwereeliminated .Withtheaidofthis technology ,thestrictrequirementofcompletesterilityformalesterilelineincropscanbereduced .Itwillbe beneficialnotonlyforbreedingnewexcellentmalesterilelines ,butalsoforcommercializingchemicallyin ducedmalesterilesystemincrops .

关 键 词：制种纯度 恢复系 除草剂 草丁膦 抗性基因 转育 

分 类 号：S511.032[农业科学—作物学]