GL3 — Brassica oleracea var. botrytis

Summary

BoGL3 (GL3, also known as MYC6.2) on chromosome 4 of cauliflower encodes a protein with MYC/MYB_N, bHLH-TF_ACT-like_plant, bHLH_dom, and HLH_DNA-bd_sf domains, and is annotated with DNA binding, transcription coactivator activity, protein dimerization activity, ubiquitin-protein transferase activity, and small GTPase binding. It is associated with regulation of trichome spacing, trichome morphogenesis, inhibition of trichome spacing, upregulation of trichoblast fate, root epidermal cell differentiation, stomatal complex formation, proanthocyanidin anabolism, pigmentation, sucrose mediated signaling, actin nucleation, and regulation of protein localization. The gene is linked to traits including leaf trichome density, seed coat color, flavonoid content, stem dry weight, shoot fresh weight, leaf elongation rate, root epidermal cell length, whole plant size, plant male sterility, pollen fertility, germination rate, and responses to biotic stress, insect damage, gibberellic acid, and cytokinin. Related genes in other species are associated with trichome and root hair patterning, anthocyanin accumulation, and epidermal cell fate specification.