Genetic analysis of yield and fiber quality traits in upland cotton(Gossypium hirsutum L.) cultivated in different ecological regions of China

查看全文 作　　者：SHAHZAD [1]Kashif;LI [1]Xue;QI [1]Tingxiang;GUO [1]Liping;TANG [1]Huini;ZHANG [1]Xuexian;WANG [1]Hailin;ZHANG [1]Meng;ZHANG [1]Bingbing;QIAO [1]Xiuqin;XING [1]Chaozhu;WU [1]Jianyong

机构地区：[1]State Key Laboratory of Cotton Biology/Institute of Cotton Research,Chinese Academy of Agricultural Sciences/Key Laboratory for Cotton Genetic Improvement,Ministry of Agriculture and Rural Affairs

出　　处：《Journal of Cotton Research》索引2019年第2卷第2期,共11页

基　　金：supported by National Key Research and Development Program of China(2016YFD0101400) 摘　　要：Background:Cotton is an important fiber crop worldwide.The yield potential of current genotypes of cotton can be exploited through hybridization.However,to develop superior hybrids with high yield and fiber quality traits,information of genetic control of traits is prerequisite.Therefore,genetic analysis plays pivotal role in plant breeding.Results:In present study,North Carolina II mating design was used to cross 5 female parents with 6 male parents to produce 30 intraspecific F1cotton hybrids.All plant materials were tested in three different ecological regions of China during the year of 2016-2017.Additive-dominance-environment(ADE)genetic model was used to estimate the genetic effects and genotypic and phenotypic correlation of yield and fiber quality traits.Results showed that yield traits except lint percentage were mainly controlled by genetic and environment interaction effects,whereas lint percentage and fiber quality traits were determined by main genetic effects.Moreover,dominant and additiveen vironine nt in teraction effects had more influence on yield traits,whereas additive and domi nance-e nviron ment interaction effects were found to be predominant for fiber traits.Broad-sense and its interaction heritability were significant for all yield and most of fiber quality traits.Narrow-sense and its interaction heritability were non-significant for boll number and seed cotton yield.Correlation analysis indicated that seed cotton yield had significant positive correlation with other yield attributes and non-significant with fiber quality traits.All fiber quality traits had signiflcant positive correlation with each other except micronaire.Conclusions:Results of current study provide important information about genetic control of yield and fiber quality traits.Further,this study identified that parental lines,e.g.,SJ48-1,ZB-1,851-2,and DT-8 can be utilized to improve yield and fiber quality traits in cotton. 关键词：Cotton Hybrid GENETIC effects ADDITIVE DOMINANCE Correlation

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Genetic analysis of yield and fiber quality traits in upland cotton(Gossypium hirsutum L.) cultivated in different ecological regions of China

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