ORIGINAL RESEARCH article
Front. Genet.
Sec. Genomics of Plants and the Phytoecosystem
Volume 16 - 2025 | doi: 10.3389/fgene.2025.1600979
This article is part of the Research TopicPrecision Trait Mapping and Molecular Breeding in High-Impact Crop PlantsView all 4 articles
Genetic dissection of yield and yield-related traits in mungbean based on QTL meta-analysis
Provisionally accepted
Binbin Du1
Qifei Wang2
Song Gao2Fan Yang3Lei Zhang3Xiao Zhang3Dongao Huo3Jia Wu1Xingen Zhang1Fang Li1Baowei Lu1*Fengxia An1*- 1West Anhui University, Lu'an, China
- 2Zhejiang Academy of Agricultural Sciences, Hangzhou, Zhejiang, China
- 3Taiyuan Normal University, Taiyuan, Shanxi Province, China
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As an important food crop and nutritional source, mungbean has prioritized yield improvement as a key objective in breeding programs. In present study, we conducted a QTL meta-analysis to integrate 660 QTLs related to yield and yield-related traits in mungbean published over the past 20 years. A total of 590 initial QTLs were mapped onto a high-density consensus map, resulting in the identification of 72 meta-QTLs (MQTLs). These MQTLs were unevenly distributed across 11 linkage groups (LGs) with an average confidence interval (CI) of 1.21 cM, which was 6.26-fold narrower than the average CI of the initial QTLs. Among these 72 MQTLs, 20 were validated in a genome-wide association study (GWAS) for yield and yield-related traits in mungbean. Orthologous MQTL analysis revealed that 22 mungbean MQTLs were collinear with 19 MQTLs in common bean for yield and yield-related traits. In addition, 20 breeder's MQTLs were screened from the 72 MQTLs, and 339 gene models were identified within the breeder's MQTL regions. Twenty-two mungbean orthologs of yield-related genes such as seed germination, tiller number, and plant height in rice and Arabidopsis were identified in the breeder's MQTL regions using homology analysis.This study contributes to understanding the genetic mechanisms for yield and yieldrelated traits and provides new ideas for the genetic improvement and breeding of mungbean.
Keywords: mungbean, yield, QTL Meta-analysis, Meta-QTL, candidate gene
Received: 27 Mar 2025; Accepted: 24 Apr 2025.
Copyright: © 2025 Du, Wang, Gao, Yang, Zhang, Zhang, Huo, Wu, Zhang, Li, Lu and An. 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:
Baowei Lu, West Anhui University, Lu'an, China
Fengxia An, West Anhui University, Lu'an, China
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