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.

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.

Creative Commons License

Creative Commons Attribution 4.0 License
This work is licensed under a Creative Commons Attribution 4.0 License.

Copyright Owner

The Authors

Language

en

File Format

application/pdf

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