title: Quantitative trait locus analysis for kernel width using maize recombinant inbred lines.
abstract: Maize (Zea mays L.) kernel width is one of the most important traits that is related to yield and appearance. To understand its genetic mechanisms more clearly, a recombinant inbred line (RIL) segregation population consisting of 239 RILs was used for quantitative trait locus (QTL) mapping for kernel width. We found four QTLs on chromosomes 3 (one), 5 (two), and 10 (one). The QTLs were close to their adjacent markers, with a range of 0-23.8 cM, and explained 6.2-19.7% of the phenotypic variation. The three QTLs on chromosomes 3 and 5 had positive additive effects, and to a certain extent increased kernel width, whereas the one on chromosome 10 exhibited negative additive effects and decreased kernel width. These results can be used for gene cloning and marker-assisted selection in maize-breeding programs.
authors.affiliation: Maize Research Institute, Shanxi Academy of Agricultural Sciences, Xinzhou, China.
authors.forename: G Q
authors.initials: GQ
authors.lastname: Hui
authors.affiliation: Key Laboratory of Southwest China Wildlife Resources Conservation (Ministry of Education), College of Life Science, China West Normal University, Nanchong, China.
authors.forename: G Q
authors.initials: GQ
authors.lastname: Wen
authors.affiliation: Key Laboratory of Southwest China Wildlife Resources Conservation (Ministry of Education), College of Life Science, China West Normal University, Nanchong, China 350783409@qq.com.
authors.forename: X H
authors.initials: XH
authors.lastname: Liu
authors.affiliation: Maize Research Institute, Shanxi Academy of Agricultural Sciences, Xinzhou, China.
authors.forename: H P
authors.initials: HP
authors.lastname: Yang
authors.affiliation: Maize Research Institute, Shanxi Academy of Agricultural Sciences, Xinzhou, China.
authors.forename: Q
authors.initials: Q
authors.lastname: Luo
authors.affiliation: Biological Engineering College, Shanxi University, Taiyuan, China.
authors.forename: H X
authors.initials: HX
authors.lastname: Song
authors.affiliation: Biological Engineering College, Shanxi University, Taiyuan, China.
authors.forename: L
authors.initials: L
authors.lastname: Wen
authors.affiliation: Biotechnology Research Center, Shanxi Academy of Agricultural Sciences, Taiyuan, China.
authors.forename: Y
authors.initials: Y
authors.lastname: Sun
authors.affiliation: Maize Research Institute, Shanxi Academy of Agricultural Sciences, Xinzhou, China.
authors.forename: H M
authors.initials: HM
authors.lastname: Zhang
mesh_terms: D001947:Breeding; D002874:Chromosome Mapping; D032461:Chromosomes, Plant; D010641:Phenotype; D040641:Quantitative Trait Loci / Q000235:genetics*; D003313:Zea mays / Q000235:genetics* / Q000254:growth & development