BLR — Brassica oleracea var. botrytis

Summary

BoBLR (BLR) on cauliflower chromosome 3 encodes a protein with a homeodomain, a POX domain, and a KN_HD domain, and has DNA-binding transcription factor activity, RNA polymerase II cis-regulatory region sequence-specific DNA binding, and transcription coactivator activity. It is associated with floral whorl morphogenesis, maintenance of inflorescence and floral meristem identity, adaxial/abaxial pattern specification, stem cell population maintenance, carpel development, secondary shoot formation, and negative regulation of auxin-mediated signaling. The gene is linked to traits including flower, petal, sepal, stamen, anther, carpel, and pistil morphology, pedicel and peduncle length, petal number, leaf margin serration, seed weight, shoot axis branching, inflorescence development, photoperiod-sensitive flowering time, and biotic stress. Studies of related genes in other species link the family to apical meristem development, phyllotaxy, fruit patterning, and vascular development.