PAP1 — Brassica oleracea var. botrytis

Summary

BoPAP1 (also known as BoMYB113, BoPAP2, BoMYB90, or BoMYB75) on chromosome 6 of cauliflower encodes a Myb-domain transcription factor that binds DNA, dimerizes, and has annotated ubiquitin ligase and protein kinase activities. It is associated with the positive regulation of anthocyanin, flavonoid, and proanthocyanidin biosynthesis, as well as pigmentation, seed growth, mucilage anabolism, trichome spacing, and epidermal cell fate specification. The gene has been linked to traits including flavonoid content, seed coat color, leaf trichome density, root epidermal cell length, light quality responses, cadmium concentration, iron concentration, seed longevity, lignin biosynthesis, phosphorus uptake, and viral disease response. Related genes in other species connect the family to anthocyanin pigmentation, iron accumulation, insect resistance, salt stress tolerance, and phosphate deficiency tolerance.