Campus Units
Agronomy
Document Type
Article
Publication Version
Published Version
Publication Date
2020
Journal or Book Title
Scientific Reports
Volume
10
First Page
7086
DOI
10.1038/s41598-020-63960-2
Abstract
The elite maize hybrid Zhengdan 958 (ZD958), which has high and stable yield and extensive adaptability, is widely grown in China. To elucidate the genetic basis of yield and its related traits in this elite hybrid, a set of doubled haploid (DH) lines derived from ZD958 were evaluated in four different environments at two locations over two years, and a total of 49 quantitative trait loci (QTL) and 24 pairs of epistatic interactions related to yield and yield components were detected. Furthermore, 21 QTL for six investigated phenotypic traits were detected across two different sites. Combining the results of these QTL in each environment and across both sites, three main QTL hotspots were found in chromosomal bins 2.02, 2.05–2.06, and 6.05 between the simple sequence repeat (SSR) markers umc1165-bnlg1017, umc1065-umc1637, and nc012-bnlg345, respectively. The existence of three QTL hotspots associated with various traits across multiple environments could be explained by pleiotropic QTL or multiple tightly linked QTL. These genetic regions could provide targets for genetic improvement, fine mapping, and marker-assisted selection in future studies.
Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 License.
Copyright Owner
The Authors
Copyright Date
2020
Language
en
File Format
application/pdf
Recommended Citation
Yang, Jiwei; Liu, Zonghua; Chen, Qiong; Qu, Yanzhi; Tang, Jihua; Lubberstedt, Thomas; and Li, Haochuan, "Mapping of QTL for Grain Yield Components Based on a DH Population in Maize" (2020). Agronomy Publications. 649.
https://lib.dr.iastate.edu/agron_pubs/649
Included in
Agriculture Commons, Agronomy and Crop Sciences Commons, Plant Breeding and Genetics Commons
Comments
This article is published as Yang, Jiwei, Zonghua Liu, Qiong Chen, Yanzhi Qu, Jihua Tang, Thomas Lübberstedt, and Haochuan Li. "Mapping of QTL for Grain Yield Components Based on a DH Population in Maize." Scientific Reports 10 (2020): 7086. doi: 10.1038/s41598-020-63960-2.