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除草剂(草丁膦)抗性基因的遗传与利用 被引量:23
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作者 黎垣庆 刘刚 +1 位作者 严文贵 许秋生 《Acta Botanica Sinica》 CSCD 1999年第12期1348-1350,共3页
Threerestoringlines (Minghui 6 3,Ce 6 4andTeqing)asfemaleparentswerecrossedwithherbi cide_resistanttransgeniccultivars (Bengal_Hu10andGulfmont)asmaleparents .Geneticanalysisongenera tionsofF1,F2 andBC1indicatedthatthe... 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 . 展开更多
关键词 制种纯度 恢复系 除草剂 草丁膦 抗性基因 转育
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