GL2 — Brassica oleracea var. botrytis

Summary

BoGL2, located on chromosome 6 of cauliflower (Brassica oleracea var. botrytis), encodes a homeodomain-leucine zipper (HD-Zip IV) transcription factor with a START domain and lipid-binding activity. It localises to the nucleus and is associated with DNA-binding transcription factor activity, sequence-specific DNA binding, and protein binding. BoGL2 is linked to plant epidermal cell fate specification, trichome differentiation, and downregulation of trichoblast fate, as well as phenylpropanoid metabolism and cell differentiation. The gene has been connected to numerous traits and phenotypes, including trichome morphology, root epidermal cell patterning, seed coat development and mucilage synthesis, root hair development and density, leaf elongation, stem elongation, seed oil content, anthocyanin biosynthesis, osmotic stress response, and arsenic accumulation. Studies of related genes in other species link the family to epidermal differentiation, trichome and root hair development, seed mucilage defects, and plastid development.