ArticleBMC plant biology2024
Genome-wide association study, combined with bulk segregant analysis, identify plant receptors and defense related genes as candidate genes for downy mildew resistance in quinoa.
Article in BMC plant biology, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed.
- Quinoa as a naturally stress-resistant crop: current status and future promises.Stress biology · 2026Review
- Genetic and environmental influences on fatty acid and tocopherol diversity in quinoa germplasm.Frontiers in plant science · 2025Article
- Unraveling Quinoa (Plants (Basel, Switzerland) · 2024Article
- Root restriction accelerates genomic target identification in quinoa under controlled conditions.Physiologia plantarumArticle
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Authors and funding
5 authors.
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Abstract
backgroundDowny mildew is the most relevant disease of quinoa and the most widespread. Though, little is known about the genetics of resistance to this disease. The objective of this study was to identify the genomic regions controlling downy mildew resistance in quinoa and candidate genes for this trait. With this aim we carried out a GWAS analysis in a collection formed by 211 quinoa accessions from different origins. This approach was combined with inheritance studies and Bulk Segregant Analysis (BSA) in a segregating population.
resultsGWAS analysis identified 26 genomic regions associated with the trait. Inheritance studies in a F
conclusionsUntil now, little was known about the genetic control of downy mildew resistance in quinoa. A previous inheritance study suggested that resistance to this disease was a quantitative polygenic trait and previous GWAS analyses were unable to identify accurate markers for this disease. In our study we demonstrate the existence of, at least, one major gene conferring resistance to this disease, identify the genomic regions involved in the trait and provide plausible candidate genes involved in defense. Therefore, this study significantly increases our knowledge about the genetics of downy mildew resistance and provides relevant information for breeding for this important trait.
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