Journal ArticleOpen Access
Genome‐wide association mapping for field spot blotch resistance in South Asian spring wheat genotypes
Authors
Author Affiliations
Indian Institute of Wheat and Barley Research, Centro Internacional de Mejoramiento de Maíz Y Trigo, Agharkar Research Institute, Indian Agricultural Research Institute, ...
Published InThe Plant Genome
Year2024
Citations5
Abstract
Spot blotch caused by Bipolaris sorokiniana ((Sacc.) Shoemaker) (teleomorph: Cochliobolus sativus [Ito and Kuribayashi] Drechsler ex Dastur) is an economically important disease of warm and humid regions. The present study focused on identifying resistant genotypes and single-nucleotide polymorphism (SNP) markers associated with spot blotch resistance in a panel of 174 bread spring wheat lines using field screening and genome-wide association mapping strategies. Field experiments were conducted in Agua Fria, Mexico, during the 2019-2020 and 2020-2021 cropping seasons. A wide range of phenotypic variation was observed among genotypes tested during both years. Twenty SNP markers showed significant association with spot blotch resistance on 15 chromosomes, namely, 1A, 1B, 2A, 2B, 2D, 3A, 3B, 4B, 4D, 5A, 5B, 6A, 6B, 7A, and…
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