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European landrace diversity for common bean biofortification: a genome-wide association study

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Title European landrace diversity for common bean biofortification: a genome-wide association study
 
Creator Caproni, Leonardo
Raggi, Lorenzo
Talsma, Elise F.
Wenzl, Peter
Negri, Valeria
 
Subject razas indigenas
land races
biodiversidad
biodiversity
recursos geneticos
genetic resources
frijol
beans
marcadores geneticos
genetic markers
 
Description Mineral deficiencies represent a global challenge that needs to be urgently addressed. An adequate intake of iron and zinc results in a balanced diet that reduces chances of impairment of many metabolic processes that can lead to clinical consequences. In plants, bioavailability of such nutrients is reduced by presence of compounds such as phytic acid, that can chelate minerals and reduce their absorption. Biofortification of common bean (Phaseolus vulgaris L.) represents an important strategy to reduce mineral deficiencies, especially in areas of the world where this crop plays a key role in the diet. In this study, a panel of diversity encompassing 192 homozygous genotypes, was screened for iron, zinc and phytate seed content. Results indicate a broad variation of these traits and allowed the identification of accessions reasonably carrying favourable trait combinations. A significant association between zinc seed content and some molecular SNP markers co-located on the common bean Pv01 chromosome was detected by means of genome-wide association analysis. The gene Phvul001G233500, encoding for an E3 ubiquitin-protein ligase, is proposed to explain detected associations. This result represents a preliminary evidence that can foster future research aiming at understanding the genetic mechanisms behind zinc accumulation in beans.
 
Date 2020
2020-11-25T16:40:46Z
2020-11-25T16:40:46Z
 
Type Journal Article
 
Identifier Caproni, L.; Raggi, L.; Talsma, E.F.; Wenzl, P.; Negri, V. 2020. European landrace diversity for common bean biofortification: a genome-wide association study. Scientific Report 10 (19775) https://doi.org/10.1038/s41598-020-76417-3
2045-2322
https://hdl.handle.net/10568/110300
https://doi.org/10.1038/s41598-020-76417-3
 
Language en
 
Rights CC-BY-4.0
Open Access
 
Format application/pdf
 
Publisher Springer Science and Business Media LLC