EGL1 — Brassica oleracea var. botrytis

Summary

BoEGL1 (EGL1) on cauliflower chromosome 9 encodes a protein with a bHLH domain, possessing DNA-binding, transcription coactivator activity, and protein dimerization activity. It is associated with the regulation of trichome spacing, morphogenesis, and trichoblast fate specification, as well as proanthocyanidin anabolism, stomatal complex formation, root epidermal cell differentiation, and pigmentation. The gene is linked to traits including leaf trichome density, seed coat color, flavonoid content, stem dry weight, seed weight, germination rate, and plant male sterility. It has also been connected to phenotypes such as overbranched trichomes, endoreduplication, reduced seed coat mucilage, and altered root hair production. Related genes in other species are linked to trichome and root hair cell differentiation, proanthocyanidin accumulation, and seed coat pigmentation.