The Genetic Basis of Natural Variation in Kernel Size and Related Traits Using a Four-Way Cross Population in Maize

文献类型： 外文期刊

第一作者： Chen, Jiafa

作者： Chen, Jiafa;Li, Zhimin;Huang, Rongrong;Li, Yongming;Cheng, Hongliang;Li, Xiantang;Zhou, Bo;Wu, Suowei;Chen, Wei;Wu, Jianyu;Ding, Junqiang;Chen, Jiafa;Li, Zhimin;Huang, Rongrong;Li, Yongming;Cheng, Hongliang;Li, Xiantang;Zhou, Bo;Wu, Suowei;Chen, Wei;Wu, Jianyu;Zhang, Luyan;Zhang, Luyan;Liu, Songtao

作者机构：

期刊名称：PLOS ONE （ 影响因子：3.24； 五年影响因子：3.788 ）

ISSN： 1932-6203

年卷期： 2016 年 11 卷 4 期

页码：

收录情况： SCI

摘要： Kernel size is an important component of grain yield in maize breeding programs. To extend the understanding on the genetic basis of kernel size traits (i.e., kernel length, kernel width and kernel thickness), we developed a set of four-way cross mapping population derived from four maize inbred lines with varied kernel sizes. In the present study, we investigated the genetic basis of natural variation in seed size and other components of maize yield (e.g., hundred kernel weight, number of rows per ear, number of kernels per row). In total, ten QTL affecting kernel size were identified, three of which (two for kernel length and one for kernel width) had stable expression in other components of maize yield. The possible genetic mechanism behind the trade-off of kernel size and yield components was discussed.

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