Hunting for the genetic loci underlying root lodging resistance by BSR-seq and QTL mapping in maize.

ABSTRACT:

Background

Lodging is one of the major factors that affect mechanical harvesting and decreases yield and quality of maize. Exploring quantitative trait loci (QTL) or genes underlying lodging resistance is vital for molecular breeding of lodging-resistant maize varieties. Specially, root lodging resistance (RLR) QTLs or genes are rarely reported.

Results

In this study, to explore the QTLs underlying root lodging resistance, we generated a F₂ population of CIMBL74 and CIMBL145 that have contrastive difference of root architecture and lodging resistance. We performed BSR-seq analysis of the populations and 8 QTLs were identified. Among them, qRLR1, qRLR4, qRLR5 and qRLR6 were further confirmed by chromosomal region-based association study (CRAS) and/or linkage mappin

SUBMITTER: Mu X 

PROVIDER: S-EPMC12625273 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature