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CHUZhizhan1,XIEYongyao1,HUChen2,GUOHaibin3,LIUYaoguang1
(1ColegeofLifeSciences,SouthChinaAgriculturalUniversity,StateKeyLaboratoryforConservationandUtilizationofSub
tropicalAgrobioresources,Guangzhou510642,China;2ColegeofFoodSciences,SouthChinaAgriculturalUniversity,Guang
zhou510642,China;3CenterofExperimentalTeachingforCommonBasicCourse,SouthChinaAgriculturalUniversity,Guang
zhou510642,China)
犃犫狊狋狉犪犮狋:Aricesemidwarfanddeformedflowermutant,temporarilynamedas狊犱犱犳3,wasidentified
from60Coγrayradiationmutationin犼犪狆狅狀犻犮犪ricevarietyNipponbare.Themutantwascharacterizedby
semidwarf,moretilers,semienclosedpanicle,stamensdysplasiaandnonpolen.Geneticsanalysisindi
catedthatthemutantwascontroledbyasinglerecessivegene.TheF2 mappingpopulationwasderived
fromacrossbetweentheheterozygous狊犱犱犳3genotypeandawidecompatiblevarietyDular.Thegene
waslocatedina227kbregionbetweentheIn/Delmarker333591and333818onchromosome3inrice,
whichwasassumedtobeanewgenecontrolingsemidwarfanddeformedflower.
犓犲狔狑狅狉犱狊:rice;semidwarfanddeformedflower;genemapping;geneticsanalysis
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A.Plantphenotypesofwildtypeand狊犱犱犳3;BD.Thecomparisonofinternodeslength,plantheightandnumberoftilersbetweenwild
typeand狊犱犱犳3:ⅠⅣ.Theupperfourinternodesdownpanicle;indicateastatisticalysignificantdifference(犘<0.01)
Fig.1 ComparisonofmorphologicalcharactersbetweenNipponbareand狊犱犱犳3
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[1] =ð÷,>?@.v4Àyrzæ¿û[M].èA:èAD%
EBåCD
,1991:69.
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犿狔狅犳犛犮犻犲狀犮犲狊狅犳狋犺犲犝狀犻狋犲犱犛狋犪狋犲狊狅犳犃犿犲狉犻犮犪,1999,96
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