文献类型： 外文期刊

作者： Hui, G. Q. ¹ ; Wen, G. Q. ² ; Liu, X. H. ² ; Yang, H. P. ¹ ; Luo, Q. ¹ ; Song, H. X. ³ ; Wen, L. ³ ; Sun, Y. ⁴ ; Zhang, H. M ¹ ;

作者机构： 1.Shanxi Acad Agr Sci, Maize Res Inst, Xinzhou, Peoples R China

2.China West Normal Univ, Coll Life Sci, Key Lab Southwest China Wildlife Resources Conser, Minist Educ, Nanchong, Peoples R China

3.Shanxi Univ, Biol Engn Coll, Taiyuan 030006, Peoples R China

4.Shanxi Acad Agr Sci, Biotechnol Res Ctr, Taiyuan, Peoples R China

5.Minist Agr, Key Lab Crop Gene Resources & Germplasm Enhanceme, Taiyuan, Peoples R China

关键词： Maize (Zea mays L.);Kernel width;Quantitative trait locus;Genetic mechanism

期刊名称：GENETICS AND MOLECULAR RESEARCH （ 影响因子：0.764； 五年影响因子：0.912 ）

ISSN： 1676-5680

年卷期： 2015 年 14 卷 4 期

页码：

收录情况： SCI

摘要： 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.