@article{Li2024, 
author = {Shengyou Li and Changling Wang and Chunjuan Yan and Xugang Sun and Lijun Zhang and Yongqiang Cao and Wenbin Wang and Shuhong Song},
title = {Identification and fine mapping of qSW2 for leaf slow wilting in soybean},
year = {2024},
journal = {The Crop Journal},
volume = {12},
number = {1},
pages = {244-251},
keywords = {Drought, GWAS, Linkage mapping, Slow wilting, Soybean (Glycine max)},
url = {https://www.sciopen.com/article/10.1016/j.cj.2023.10.013},
doi = {10.1016/j.cj.2023.10.013},
abstract = {Drought is one of the abiotic stresses limiting the production of soybean (Glycine max). Elucidation of the genetic and molecular basis of the slow-wilting (SW) trait of this crop offers the prospect of its genetic improvement. A panel of 188 accessions and a set of recombinant inbred lines produced from a cross between cultivars Liaodou 14 and Liaodou 21 were used to identify quantitative-trait loci (QTL) associated with SW. Plants were genotyped by Specific-locus amplified fragment sequencing and seedling leaf wilting was assessed under three water-stress treatments. A genome-wide association study identified 26 SW-associated single-nucleotide polymorphisms (SNPs), including three located in a 248-kb linkage-disequilibrium (LD) block on chromosome 2. Linkage mapping revealed a major-effect QTL, qSW2, associated with all three treatments and adjacent to the LD block. Fine mapping in a BC2F3 population derived from a backcross between Liaodou 21 and R26 confined qSW2 to a 60-kb interval. Gene expression and sequence variation analysis identified the gene Glyma.02 g218100, encoding an auxin transcription factor, as a candidate gene for qSW2. Our results will contribute significantly to improving drought-resistant soybean cultivars by providing genetic information and resources.}
}