Publications by authors named "Bruna B Avelino"
Soybean is a crucial crop for the Brazilian economy, but it faces challenges from the biotrophic fungus Phakopsora pachyrhizi, which causes Asian Soybean Rust (ASR). In this study, we aimed to identify SNPs associated with resistance within the Rpp1 locus, which is effective against Brazilian ASR populations. We employed GWAS and re-sequencing analyzes to pinpoint SNP markers capable of differentiating between soybean accessions harboring the Rpp1, Rpp1-b and other alternative alleles in the Rpp1 locus and from susceptible soybean cultivars.
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- The study focuses on the investigation and mapping of resistance to Asian soybean rust (ASR) in the soybean line PI 594756, comparing it to the susceptible line PI 594891.
- Using Bulked Segregant Analysis (BSA) and a panel of isolates, researchers identified resistance traits, classifying PI 594756 as having monogenic dominant resistance, although it showed incomplete dominance when quantified.
- Genetic mapping placed the resistance gene on chromosome 18, pinpointing it between specific base pair positions, and a haplotype analysis revealed unique SNPs that can aid in marker-assisted selection (MAS) for future breeding.