The final, formatted version of the article will be published soon.
ORIGINAL RESEARCH article
Front. Plant Sci.
Sec. Plant Biotechnology
Volume 15 - 2024 |
doi: 10.3389/fpls.2024.1441288
This article is part of the Research Topic Multi-omics Strategies to Analyze Complex Agronomic Traits in Plants, Volume II View all 3 articles
Integrated GWAS, Linkage, and Transcriptome Analysis to Identify Genetic Loci and Candidate Genes for Photoperiod Sensitivity in Maize
Provisionally accepted
Yulin Jiang
1,2
Liang Tu
1*
Pengfei Liu
1*
Xiangyang Guo
1*
Angui Wang
1*
Yunfang Zhu
1*
Xuefeng Lu
1,2*
Zehui Chen
1,3*
Xun Wu
1,2*- 1 Institute of Upland Food Crops, Guizhou Academy of Agricultural Sciences, Guizhou, China
- 2 Other, Guiyang, Guizhou Province, China
- 3 Other, Sanya, China
Maize photosensitivity and the control of flowering are not only important for reproduction, but also play pivotal roles in the processes of domestication and environmental adaptation, especially involving in the utilization strategy of tropical maize in high-latitude regions. In this study, we used a linkage mapping population and a inbred association panel with the photoperiod sensitivity index (PSI) phenotyped under different environments and performed transcriptome analysis of T32 and QR273 between long-day and short-day conditions. The results showed PSIs of days to tasseling (DTT), days to pollen shedding (DTP), and days to silking (DTS) were efficacious interactions with photoperiod sensitivity for maize latitude adaptation. A total of 48 QTLs and 252 QTNs were detected using the linkage population and the inbred association panel. 13 candidate genes were identified by combining GWAS approach, linkage analysis, and transcriptome analysis. Where in, five critical candidate genes of MYB163, bif1, burp8, CADR3, and Zm00001d050238, were significantly associated with photoperiod sensitivity. These results would provide much more abundant theoretical proofs to reveal the genetic basis of photoperiod sensitivity, which would be help to understand the genetic changes during domestication and improvement and contribute to reducing the barriers to use of tropical germplasm.
Keywords: photoperiod sensitivity, Genetic Loci, GWAS, QTL, Joint analysis, candidate gene
Received: 30 May 2024; Accepted: 12 Jul 2024.
Copyright: © 2024 Jiang, Tu, Liu, Guo, Wang, Zhu, Lu, Chen and Wu. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
* Correspondence:
Liang Tu, Institute of Upland Food Crops, Guizhou Academy of Agricultural Sciences, Guizhou, China
Pengfei Liu, Institute of Upland Food Crops, Guizhou Academy of Agricultural Sciences, Guizhou, China
Xiangyang Guo, Institute of Upland Food Crops, Guizhou Academy of Agricultural Sciences, Guizhou, China
Angui Wang, Institute of Upland Food Crops, Guizhou Academy of Agricultural Sciences, Guizhou, China
Yunfang Zhu, Institute of Upland Food Crops, Guizhou Academy of Agricultural Sciences, Guizhou, China
Xuefeng Lu, Institute of Upland Food Crops, Guizhou Academy of Agricultural Sciences, Guizhou, China
Zehui Chen, Institute of Upland Food Crops, Guizhou Academy of Agricultural Sciences, Guizhou, China
Xun Wu, Institute of Upland Food Crops, Guizhou Academy of Agricultural Sciences, Guizhou, China
Disclaimer: All claims expressed in this article are solely those of the authors and do not necessarily represent those of their affiliated organizations, or those of the publisher, the editors and the reviewers. Any product that may be evaluated in this article or claim that may be made by its manufacturer is not guaranteed or endorsed by the publisher.