GrainGenes Reference Report: GNC-112-4608
Reference
GNC-112-4608
Title
Multi-locus genome-wide association studies reveal novel genomic regions associated with vegetative stage salt tolerance in bread wheat (Triticum aestivum L.)
Journal
Genomics
Year
2020
Volume
112
Pages
4608-4621
Author
Chaurasia S
[ Show all 6 ]
Abstract
Soil salinity is one of the typical abiotic stresses affecting sustainability of wheat production worldwide. In the present study, we performed a 35K SNP genotyping assay on association panel of 135 diverse wheat genotypes evaluated for vegetative stage tolerance in hydroponics. Association analyses using five multi-locus GWAS models revealed 42 reliable QTNs for 10 salt tolerance associated traits. Among these 42 reliable QTNs, 9, 17 and 16 QTNs were associated with physiological, biomass and shoot ionic traits respectively. Novel major QTNs were identified for chlorophyll content, shoot fresh weight, seedling total biomass, Na+ and K+ concentration and Na+/K+ ratio in shoots. Further, 10 major QTNs showed significant effect on the corresponding salt tolerance traits. Gene ontology analysis of the associated genomic regions identified 58 candidate genes. The information generated in this study will be of potential value for improvement of salt tolerance of wheat cultivars using marker assisted selection.
External Databases
https://doi.org/10.1016/j.ygeno.2020.08.006
QTL
Q.STI-CHL_INGB-2AL
[ Show all 42 ]
GrainGenes is a product of the Agricultural Research Service of the US Department of Agriculture.
GrainGenes Reference Report: GNC-112-4608
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GrainGenes is a product of the Agricultural Research Service of the US Department of Agriculture. | |||