Portuguese Common Bean Natural Variation Helps to Clarify the Genetic Architecture of the Legume’s Nutritional Composition and Protein Quality

Common bean is a nutritious food legume widely appreciated by consumers worldwide. It is a staple food in Latin America, and a component of the Mediterranean diet, being an affordable source of protein with high potential as a gourmet food. Breeding for nutritional quality, including both macro and...

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Main Authors: Francisco A. Mendes, Susana T. Leitão, Verónica Correia, Elsa Mecha, Diego Rubiales, Maria Rosário Bronze, Maria Carlota Vaz Patto
Format: Article
Language:English
Published: MDPI AG 2021-12-01
Series:Plants
Subjects:
Online Access:https://www.mdpi.com/2223-7747/11/1/26
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author Francisco A. Mendes
Susana T. Leitão
Verónica Correia
Elsa Mecha
Diego Rubiales
Maria Rosário Bronze
Maria Carlota Vaz Patto
author_facet Francisco A. Mendes
Susana T. Leitão
Verónica Correia
Elsa Mecha
Diego Rubiales
Maria Rosário Bronze
Maria Carlota Vaz Patto
author_sort Francisco A. Mendes
collection DOAJ
description Common bean is a nutritious food legume widely appreciated by consumers worldwide. It is a staple food in Latin America, and a component of the Mediterranean diet, being an affordable source of protein with high potential as a gourmet food. Breeding for nutritional quality, including both macro and micronutrients, and meeting organoleptic consumers’ preferences is a difficult task which is facilitated by uncovering the genetic basis of related traits. This study explored the diversity of 106 Portuguese common bean accessions, under two contrasting environments, to gain insight into the genetic basis of nutritional composition (ash, carbohydrates, fat, fiber, moisture, protein, and resistant starch contents) and protein quality (amino acid contents and trypsin inhibitor activity) traits through a genome-wide association study. Single-nucleotide polymorphism-trait associations were tested using linear mixed models accounting for the accessions’ genetic relatedness. Mapping resolution to the gene level was achieved in 56% of the cases, with 102 candidate genes proposed for 136 genomic regions associated with trait variation. Only one marker-trait association was stable across environments, highlighting the associations’ environment-specific nature and the importance of genotype × environment interaction for crops’ local adaptation and quality. This study provides novel information to better understand the molecular mechanisms regulating the nutritional quality in common bean and promising molecular tools to aid future breeding efforts to answer consumers’ concerns.
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spelling doaj.art-15eb54cdfccc40eba630200dfab77a4b2023-11-23T12:06:34ZengMDPI AGPlants2223-77472021-12-011112610.3390/plants11010026Portuguese Common Bean Natural Variation Helps to Clarify the Genetic Architecture of the Legume’s Nutritional Composition and Protein QualityFrancisco A. Mendes0Susana T. Leitão1Verónica Correia2Elsa Mecha3Diego Rubiales4Maria Rosário Bronze5Maria Carlota Vaz Patto6Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, Av. da República, 2780-157 Oeiras, PortugalInstituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, Av. da República, 2780-157 Oeiras, PortugalInstituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, Av. da República, 2780-157 Oeiras, PortugalInstituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, Av. da República, 2780-157 Oeiras, PortugalInstituto de Agricultura Sostenible, CSIC, Av. Menéndez Pidal, 14004 Cordova, SpainInstituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, Av. da República, 2780-157 Oeiras, PortugalInstituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, Av. da República, 2780-157 Oeiras, PortugalCommon bean is a nutritious food legume widely appreciated by consumers worldwide. It is a staple food in Latin America, and a component of the Mediterranean diet, being an affordable source of protein with high potential as a gourmet food. Breeding for nutritional quality, including both macro and micronutrients, and meeting organoleptic consumers’ preferences is a difficult task which is facilitated by uncovering the genetic basis of related traits. This study explored the diversity of 106 Portuguese common bean accessions, under two contrasting environments, to gain insight into the genetic basis of nutritional composition (ash, carbohydrates, fat, fiber, moisture, protein, and resistant starch contents) and protein quality (amino acid contents and trypsin inhibitor activity) traits through a genome-wide association study. Single-nucleotide polymorphism-trait associations were tested using linear mixed models accounting for the accessions’ genetic relatedness. Mapping resolution to the gene level was achieved in 56% of the cases, with 102 candidate genes proposed for 136 genomic regions associated with trait variation. Only one marker-trait association was stable across environments, highlighting the associations’ environment-specific nature and the importance of genotype × environment interaction for crops’ local adaptation and quality. This study provides novel information to better understand the molecular mechanisms regulating the nutritional quality in common bean and promising molecular tools to aid future breeding efforts to answer consumers’ concerns.https://www.mdpi.com/2223-7747/11/1/26ashamino acidscarbohydratesfatfiberGWAS
spellingShingle Francisco A. Mendes
Susana T. Leitão
Verónica Correia
Elsa Mecha
Diego Rubiales
Maria Rosário Bronze
Maria Carlota Vaz Patto
Portuguese Common Bean Natural Variation Helps to Clarify the Genetic Architecture of the Legume’s Nutritional Composition and Protein Quality
Plants
ash
amino acids
carbohydrates
fat
fiber
GWAS
title Portuguese Common Bean Natural Variation Helps to Clarify the Genetic Architecture of the Legume’s Nutritional Composition and Protein Quality
title_full Portuguese Common Bean Natural Variation Helps to Clarify the Genetic Architecture of the Legume’s Nutritional Composition and Protein Quality
title_fullStr Portuguese Common Bean Natural Variation Helps to Clarify the Genetic Architecture of the Legume’s Nutritional Composition and Protein Quality
title_full_unstemmed Portuguese Common Bean Natural Variation Helps to Clarify the Genetic Architecture of the Legume’s Nutritional Composition and Protein Quality
title_short Portuguese Common Bean Natural Variation Helps to Clarify the Genetic Architecture of the Legume’s Nutritional Composition and Protein Quality
title_sort portuguese common bean natural variation helps to clarify the genetic architecture of the legume s nutritional composition and protein quality
topic ash
amino acids
carbohydrates
fat
fiber
GWAS
url https://www.mdpi.com/2223-7747/11/1/26
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