PAP1 — Brassica napus

Summary

BnPAP1 (DARMORV10_A03P43330.1) on chromosome A03 of oilseed rape encodes a MYB transcription factor containing a Myb DNA-binding domain. The gene product is associated with DNA-binding transcription factor activity, protein dimerization activity, and ubiquitin ligase activity. BnPAP1 is linked to the regulation of flavonoid and proanthocyanidin biosynthesis, anthocyanin metabolism, pigmentation, and seed growth. It has been connected to traits including flower color, seed coat color, flavonoid content, leaf trichome density, seed longevity, cadmium concentration, iron concentration, lignin biosynthesis, phosphorus uptake, and responses to UV, blue, red, and far-red light. Localization evidence places the protein in the nucleus, root hair, and ubiquitin ligase complexes. Studies of related genes in other species link the family to anthocyanin pigmentation, trichome differentiation, root hair differentiation, and salt stress tolerance.