Proteometabolomic Analysis Reveals Molecular Features Associated with Grain Size and Antioxidant Properties amongst Chickpea (Cicer arietinum L.) Seeds Genotypes

Author:

Quiroz-Figueroa Francisco R.,Monribot-Villanueva Juan L.ORCID,Bojórquez-Velázquez EsaúORCID,Gómez-Peraza Rosa L.,Elizalde-Contreras José M.ORCID,Bautista-Valle Mirna V.ORCID,Guerrero-Analco José A.ORCID,Valdez-Morales MaribelORCID,Singh Rupesh KumarORCID,Ruiz-May ElielORCID

Abstract

Legumes are an essential source of nutrients that complement energy and protein requirements in the human diet. They also contribute to the intake of bioactive compounds such as polyphenols, whose content can vary depending on cultivars and genotypes. We conducted a comparative proteomics and metabolomics study to determine if there were significant variations in relevant nutraceutical compounds in the five genotypes of Kabuli-type chickpea grains. We performed an isobaric tandem mass tag (TMT) couple to synchronous precursor selection (SPS)-MS3 method along with a targeted and untargeted metabolomics approach based on accurate mass spectrometry. We observed an association between the overproduction of proteins involved in starch, lipid, and amino acid metabolism with gibberellin accumulation in large grains. In contrast, we visualized the over-accumulation of proteins associated with water deprivation in small grains. It was possible to visualize in small grains the over-accumulation of some phenolics such as vanillin, salicylic acid, protocatechuic acid, 4-coumaric acid, 4-hydroxybenzoic acid, vanillic acid, ferulic acid, and kaempferol 3-O-glucoside as well as the amino acid l-phenylalanine. The activated phenolic pathway was associated with the higher antioxidant capacity of small grains. Small grains consumption could be advantageous due to their nutraceutical properties.

Funder

Consejo Nacional de Ciencia y Tecnología

Publisher

MDPI AG

Subject

Cell Biology,Clinical Biochemistry,Molecular Biology,Biochemistry,Physiology

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