GL3 — Brassica napus

Summary

BnGL3 (GL3, also known as MYC6.2) on chromosome A04 of oilseed rape encodes a protein with bHLH and MYC/MYB_N domains, possessing DNA-binding, transcription coactivator activity, and protein dimerization activity. It is associated with regulation of trichome spacing, morphogenesis, and lateral inhibition, as well as proanthocyanidin anabolism, root epidermal cell differentiation, stomatal complex formation, and sucrose-mediated signaling. The gene has been linked to numerous traits including leaf trichome density, seed coat color, flower color, flavonoid content, stem dry weight, shoot fresh weight, leaf elongation rate, seed set percent, plant male sterility, gibberellin biosynthesis trait, lignin biosynthesis trait, and biotic plant stress trait. Studies of related genes in other species connect the family to trichome and root hair cell differentiation, anthocyanin pigmentation, seed coat pigmentation, and insect resistance.