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1、棉花学报CottonScience2014袁26渊1冤院25~33陆地棉主要农艺与纤维品质性状的双列杂交分析1112111111*刘艳改袁马雄风袁周晓箭袁张文英袁王海风袁孟清芹袁张文生袁裴小雨袁周克海袁杨代刚渊1.中国农业科学院棉花研究所/棉花生物学国家重点实验室袁河南安阳455000曰2.长江大学农学院袁湖北荆州434025冤摘要院本文利用加性-显性与环境互作的遗传模型渊ADE模型冤袁分析8个陆地棉亲本及其F1在不同环境下的农艺和纤维品质性状袁在估算遗传方差分量尧遗传效应的基础上袁分析各类性状间的遗传相关性袁并预测F1和F2的杂种优势袁为棉花杂种优势利用和新品种选育提供了较有价值的信息遥
2、研究表明袁农艺与纤维品质性状的遗传主要受加性尧显性和加性与环境互作效应控制遥遗传相关分析表明袁皮棉产量与纤维品质性状的显性相关系数值较大袁利用杂种优势在早期世代可以得到协同改良袁纤维品质性状间易实现协同改良遥杂种优势分析表明袁F1和F2的皮棉产量均具有显著的超亲优势袁纤维品质性状的杂种优势不明显遥关键词院陆地棉曰遗传效应曰遗传相关曰杂种优势中图分类号院S562.035.1文献标志码院A文章编号院1002-7807渊2014冤01-0025-09111211LiuYan'gai,MaXiongfeng,ZhouXiaojian,ZhangWenying,WangHaifeng,MengQin
3、gqin,ZhangWen-1111*sheng,PeiXiaoyu,ZhouKehai,YangDaigang(1.455000;2.434025,)UplandcottonhybridsdevelopedrapidlyinChina,especiallyintheYangtzeRiverandYellowRivervalleys.Theob-jectiveofthisresearchwastoprovidemorevaluableinformationforuplandcottonheterosisutilizationandnewvarietybreed-ing,throughgen
4、eticanalysisofnewmaterialsselectedinrecentyears.EightuplandcottonparentsandtheirF1hybridswereana-lyzedfortheirmainagronomicandfibertraitsindifferentecologicalenvironments,viathegeneticmodelofadditive-dominancewithenvironmentalinteractioneffects(ADEmodel).Basedonanalyzinggeneticvariancecomponentsan
5、dgeneticeffects,genet-iccorrelationsamongalltraitswerecalculated,andF1andF2heterosiswerepredicted.Theresultsindicatedthatagronomicandfibertraitsweremainlycontrolledbyadditive,dominanceandadditive伊environmenteffects.Geneticcorrelationanalysisshowedthatthedominantcorrelationcoefficientsoflintyieldan
6、dfibertraitsweregreat,sosimultaneousimprovementbetweenthetwocanbeeasilyobtainedinearlygenerationsunderapplicationofheterosis.Moreover,itwaseasytoachievesimultaneousimprovementoffibertraits.HeterosisanalysisshowedthatHpb(populationheterosisoverbetterparent)oflintyieldinF1andF2weresignificant,andnoo
7、bviousheterosiswasdetectedinfibertraits.uplandcotton;geneticeffects;geneticcorrelation;heterosis[4][5]棉花的产量和纤维品质等主要性状均为受析的研究结果袁孙济中尧戴茂华对棉花杂种优[1]多基因控制的数量性状袁对数量性状的改进和势的研究和利用情况进行了评述遥从前人的研究提高一直是棉花遗传改良的重要目标遥有关棉花结果来看袁各试
