文献类型： 外文期刊

作者： Jiang, Tao ¹ ; Zhang, Chenghua ² ; Zhang, Zhi ¹ ; Wen, Min ³ ; Qiu, Hongbo ¹ ;

作者机构： 1.Guizhou Univ, Coll Agr, Guiyang 550025, Peoples R China

2.Shandong Acad Agr Sci, Jinan 250100, Peoples R China

3.Jilin Agr Univ, Changchun 130118, Peoples R China

关键词： Maize; Low-phosphorus stress; Kernel traits; QTL mapping

期刊名称：PHYSIOLOGY AND MOLECULAR BIOLOGY OF PLANTS （ 影响因子：3.5； 五年影响因子：3.9 ）

ISSN： 0971-5894

年卷期： 2023 年

页码：

收录情况： SCI

摘要： Low-phosphorus stress significantly impacts the development of maize kernels. In this study, the phosphor efficient maize genotype 082 and phosphor deficient maize genotype Ye107, were used to construct an F-2:3 population. QTL mapping was then employed to determine the genetic basis of differences in the maize kernel traits of the two parents in a low-phosphorus environment. This analysis revealed several major QTL that control environmental impacts on kernel length, width, thickness, and weight. These QTL were detected in all three environments and were distributed on five genome segments of chromosomes 3, 5, 6, and 9, and some new kernel-trait QTL were also detected (eg: Qkwid6, Qkthi3, Qkwei9, and Qklen3-1). These environmentally insensitive QTL can be stably expressed in low phosphorus environments, indicating that they can lay a foundation for the breeding of high phosphorus utilization efficiency germplasm.