PAP1 — Brassica oleracea var. botrytis

Summary

BoPAP1 (also known as BoMYB113, BoPAP2, BoMYB90, BoMYB75, and BoATMYB75) on cauliflower chromosome 6 encodes a Myb-domain transcription factor that binds DNA and regulates transcription. It is associated with the regulation of flavonoid, proanthocyanidin, and anthocyanin biosynthesis, as well as pigmentation, seed growth, mucilage anabolism, trichome spacing, and epidermal cell fate specification. The gene is linked to traits including flavonoid content, seed coat color, leaf trichome density, seed longevity, lignin biosynthesis, cadmium and iron concentration, phosphorus uptake, and responses to light quality, UV, and viral disease. It has been connected to phenotypes such as altered seed mucilage, seed coat pigmentation, secondary cell wall deposition, and stem tensile strength. Studies of related genes in other species link the family to anthocyanin pigmentation, insect resistance, salt stress tolerance, and phosphate deficiency tolerance.