CaM6 — Solanum lycopersicum

Summary

SOLYC03G098050.3, designated CaM6 (also SlCaM6, CALM1) on tomato chromosome 3, encodes a protein containing EF-hand domains and calcium-binding sites, and is annotated as an enzyme modulator with calcium ion binding activity. The gene is associated with drought-induced flower abscission in tomato, and has been linked to numerous processes including regulation of PTGS, zeaxanthin anabolism, hydrogen peroxide metabolism, GABA biosynthesis and shunt, phototransduction, cytokinin breakdown, intracellular phosphate homeostasis, phloem loading, S-nitrosylation, melatonin and secondary metabolite biosynthesis, and cellular homeostasis. It localises to the cytoplasm and myosin II complex. Associations with agronomically important traits include fruit type, weight, length, shape and size, seed weight and dormancy, plant height, stem diameter, leaf number, photosynthetic rate and quantum yield, water use efficiency, sugar and protein content, drought tolerance, and low temperature stress response. Studies of related genes in other species link the family to disease resistance and cold tolerance.