Two chickpea genes turn on during drought and salt stress
Fernandes N, Unnati GM, Bhattacharjee S, Pandey A, Mishra N
Crop Improvement
Chickpeas are a staple legume in gardens and diets worldwide, and finding the genes that let a hardy variety shrug off drought and salty soil could help breeders produce beans that survive the erratic weather more gardens are seeing each year.
Chickpea plants have a whole family of genes, 38 of them, that act like quality-control tags on proteins, helping the plant sense and respond to trouble. Researchers found two of these genes, nicknamed CaPUB4 and CaPUB16, ramp up their activity specifically when a tough chickpea variety is hit with drought or salty soil, and the proteins they make appear to team up with the same set of partner proteins to pull off this stress response. That makes these two genes strong candidates for breeding hardier chickpea crops.
Key Findings
38 non-redundant CaPUB U-box E3 ligase genes identified in the chickpea genome, with conserved synteny to Lotus japonicus and Arabidopsis thaliana
CaPUB4 and CaPUB16 were specifically upregulated under drought and salt stress in the stress-tolerant ICC4958 chickpea cultivar
CaPUB14 and CaPUB2 showed distinct tissue-specific expression, while CaPUB4 and CaPUB16 share an identical set of interacting partner proteins, suggesting collaborative stress-response function
chevron_right Technical Summary
Scientists identified 38 genes in chickpea that help control how the plant's cells respond to stress, and found two of them switch on strongly when the plant faces drought or salty soil. This gives breeders specific gene targets to develop tougher chickpea varieties for a warming, water-stressed world.
Abstract Preview
Original paper
Genome-wide identification and expression analysis of chickpea U-box E3 ligases identifies CaPUB4 and CaPUB16 as candidate responsive genes for abiotic stress tolerance.
U-box E3 ubiquitin ligases play a crucial role in post-translational protein modification, stress signaling, and cellular adaptation in plants. In this study, 38 non-redundant CaPUB genes were iden...
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The chickpea or chick pea is an annual legume of the family Fabaceae, subfamily Faboideae, cultivated for its edible seeds. Its different types are variously known as gram, Bengal gram, chana (চানা), garbanzo, garbanzo bean, or Egyptian pea. It is one of the earliest cultivated legumes, the oldes...