CA-EXPA2 — Cicer arietinum

Summary

CA-EXPA2 (EXP2) on chickpea chromosome 5 encodes a protein containing an expansin_CBD domain and a DPBB domain, and is associated with plant-type cell wall loosening, organization, and modification during multidimensional cell growth. The gene is linked to cell elongation, root volume, root hair length, root thickness, leaf morphology, petal width, flowering time, photosynthetic rate, and disease tolerance. It has also been connected to responses to abscisic acid, oxidative stress, and herbicides, as well as to calcium concentration and stomatal closure. Studies of related genes in other species link the family to hypocotyl length, nematode resistance, syncytium formation, and cell wall remodeling.