PPD1 — Cicer arietinum

Summary

LOC101503507, designated CaPPD1 on chickpea chromosome 4, encodes a TIFY/JAZ domain-containing protein with CCT_CS and Tify_dom domains. The product possesses peroxidase and thioredoxin peroxidase activities, acts as a transcriptional co-regulator, and binds DNA, mRNA, and zinc. CaPPD1 is associated with chloroplast thylakoid and photosystem I localization, and is linked to photosynthetic NADP+ reduction, photosystem I stabilization, cell redox homeostasis, and hydrogen peroxide catabolism. The gene has been associated with regulation of jasmonic acid signaling, leaf senescence, organ growth, and seed longevity. Associations with agronomic traits include days to maturity, harvest index, seed weight, plant height, flowering time, root morphology, and disease tolerance. Studies of related genes in other species link the family to viral defense and pathogen resistance.