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Aldehyde Dehydrogenase 3 Is an Expanded Gene Family with Potential Adaptive Roles in Chickpea

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Author
Carmona Molero, Rocío
Jiménez-López, José C.
Caballo Linares, Cristina
Gil, Juan
Millán, Teresa
Die, Jose V.
Publisher
MDPI
Date
2021
Subject
Abiotic stress
ALDH
Chickpea
EST
Legumes
Fusarium
Oxidative stress
qPCR
SRA
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Abstract
Legumes play an important role in ensuring food security, improving nutrition and enhancing ecosystem resilience. Chickpea is a globally important grain legume adapted to semi-arid regions under rain-fed conditions. A growing body of research shows that aldehyde dehydrogenases (ALDHs) represent a gene class with promising potential for plant adaptation improvement. Aldehyde dehydrogenases constitute a superfamily of proteins with important functions as ‘aldehyde scavengers’ by detoxifying aldehydes molecules, and thus play important roles in stress responses. We performed a comprehensive study of the ALDH superfamily in the chickpea genome and identified 27 unique ALDH loci. Most chickpea ALDHs originated from duplication events and the ALDH3 gene family was noticeably expanded. Based on the physical locations of genes and sequence similarities, our results suggest that segmental duplication is a major driving force in the expansion of the ALDH family. Supported by expression data, the findings of this study offer new potential target genes for improving stress tolerance in chickpea that will be useful for breeding programs.
URI
http://hdl.handle.net/10396/22098
Fuente
Plants 10(11), 2429 (2021)
Versión del Editor
https://doi.org/10.3390/plants10112429
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