学科分类
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1 个结果
  • 简介:Forthetwo-linehybridricesystem,pollensterilityisregulatedbyrecessivegenethatrespondstotemperature.Therecessivegenecontrollingthermo-sensitivegeneticmalesterility(TGMS)isexpressedwhentheplantsaregrowninconditionswithhigherorlowercriticaltemperatures.Totransfertgmsgene(s)controllingTGMStoThairicecultivarsbybackcrossbreedingmethod,amalesterilelinewasusedasadonorparentwhileThairicecultivarsChaiNat1,PathumThani1,andSuphanBuri1wereusedasrecurrentparents.TheBC2F2linesweredevelopedfrombackcrossingandselfing.Moreover,thesimplesequencerepeat(SSR)markersweredevelopedforidentifyingtgmsgeneandthelinkedmarkerwasusedforassistingselectioninbackcrossing.Theidentificationlineswereconfirmedbypollenobservation.TheresultsshowedthesuccessofintrogressionofthetgmsgeneintoThairicecultivars.TheselineswillbetestedforcombiningabilityandusedasfemaleparentinhybridriceproductioninThailand.

  • 标签: 温敏核不育 泰国香米 水稻品种 基因渗入 无花粉型 雄性不育系