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- W2362204457 abstract "Tassel is an important reproductive organ of maize and its appearance varies greatly in different maize varieties.Molecular markers tightly linked with tassel color could be screened by genetic analysis and QTL mapping on the color of the maize tassel.These molecular markers can be used as an useful tool for maize variety protection and species identification.Mean while,higher pigment content of anthocyanin in purple tassel is closely related to the insect resistance of maize tassel.In this paper,two related F2∶ 3 populations derived from crosses of Mu6×SDM(MuS)and Mo17×SDM(MoS)were used to identify QTLs for for two traits,i.e.,the anther color(COAn)and the anther capes color(COCa),and the two populations were planted in two different environments in Yunnan and Chongqing for phenotyping.The results showed that the anther color and the anther cape color were both quantitative traits,jointly controlled by major genes and minor genes.Seven QTLs related to anther color were detected from the two populations in two different environments.They were located in chromosomes 2,3,6,and 10.The QTL within marker interval umc1196a-IDP8526 on chromosome 10 was both expressed in Chongqing and Yunnan,and contributed 23.17% and 19.98% of the phenotypic variation,respectively.Nine QTLs related to anther cape color were detected from the two groups in two environments,located in chromosome 3,6,9,and 10.Among them,three QTLs were stable between environments(with contribution rate more than 10% in at least one environment,detected in two environments).The three stable QTLs were located in the marker interval umc1979-umc1796 and mmc0523-umc2006 on chromosome 6 and the marker interval umc1196a-umc2043 on chromosome 10,explaining 10.69% to 59.30% of the phenotypic variation.The number,distribution,and effects of QTLs in two populations were highly consistent,and the major QTLs controlling the two traits of anther color and anther cape color co-localized with each other for both populations,mainly near the marker mmc0523 at bins 6.04 and the marker IDP8526 at bins 10.04.QTLs located on chromosomes 6 and 10 were stable QTLs in different environments and genetic backgrounds could be regarded as the target sites used for further fine mapping.And they could also provide a valuable reference for marker-assisted selection of maize tassel color." @default.
- W2362204457 created "2016-06-24" @default.
- W2362204457 creator A5063414486 @default.
- W2362204457 date "2013-01-01" @default.
- W2362204457 modified "2023-09-22" @default.
- W2362204457 title "Identification of QTL for Tassel Color in Maize" @default.
- W2362204457 hasPublicationYear "2013" @default.
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