Molecular diversity and trait association analysis in different wheat genotypes for yellow rust resistance
Journal of Crop Science and Biotechnology(2024)
Abstract
Yellow rust, caused by Puccinia striiformis Westend. f. sp. tritici Erikss. (Pst), is one of the most damaging wheat diseases because of their widespread distribution and ability to produce new races that can attack cultivars that were previously resistant. In this study characterization of 48 wheat genotypes was done using 51 primers comprised of stripe rust gene-specific markers and found that WH730 and WH1142 possess the highest number of rust resistant genes while WH1263 bears the lowest Yr genes. These identified resistant Yr genes were exhibited at different frequencies. The resistant genes like, Yr6, Yr18, Yr46, Yr53 and Yr61 were absent in all the 48 studied wheat genotypes. Yr35 and Yr51 had the highest frequency (95.3 and 91.6
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Key words
Yellow rust,Wheat,Molecular markers,Rust resistance,Marker trait association
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