CAAP1 — Cicer arietinum

Summary

CAAP1 (AP1) on chickpea chromosome 7 encodes a protein with MADS-box and clathrin-adaptin-like domains. The gene is associated with floral whorl development, regulation of double fertilization, and release of seed from dormancy. It has been linked to numerous agronomic traits including fruit yield, legume fruit shattering, inflorescence branching, seed color, floral organ number and morphology, leaf margin shape, and vegetative-to-reproductive phase transition. Additional associations include abscisic acid breakdown, proanthocyanidin regulation, and responses to cytokinin and biotic stimuli. The protein localizes to the nucleus, cytoplasm, plastid, and plasmodesmata. Related genes in other species are linked to floral meristem identity, fruit development, pod shatter resistance, petal and stamen identity, seed yield, and temperature-responsive flowering.