摘要
Agronomictraitsareimportantdeterminantstoriceyield,whicharecontrolledbycomplexgeneticfactorsaswellasgenotypebyenvironment(G×E)interactioneffects.TheG×Eeffectsforagronomictraitsofricehavebeendissectedwithvariousapproaches,butnotwiththecurrentavailableapproach,theassociationstudies.Inthisstudy,atotalof32655singlenucleotidepolymorphismswereusedtocarryoutassociationswith14agronomictraitsamong20riceaccessionsintwoenvironments.TheG×Einteractioneffectsforalltheagronomictraitswereathighlysignificantlevels(P<0.01),accountingfor3.4%–22.3%ofthetotalsumofsquaresexceptforthelengthofbrownrice.Twentythreeputativequantitativetraitloci(QTLs),includingfivepreviouslyknownandseveralnewpromisingassociations,wereidentifiedfor10of14traits.AnalysisoftherelationshipsbetweenthetraitsforwhichQTLsandthegenotypeeffectscouldbeidentifiedsuggestedthatthehigherthegenotypiceffect,thehigherthepossibilitytoidentifyQTLsforthegiventrait.ThenewQTLsdetectedinthisstudywillfacilitatedissectionofthecomplexagronomictraitsandmaygiveinsightintotheG×Eeffectswithassociationmapping.
出版日期
2014年03月13日（中国期刊网平台首次上网日期，不代表论文的发表时间）
