MYB12 — Capsicum annuum

Summary

CaMYB12 (T459_15441) on pepper chromosome 5 encodes a Myb-related transcription factor with sequence-specific DNA-binding activity, localised to the nucleus. This gene is associated with the regulation of multiple biosynthetic pathways, including flavonoid, carotenoid, phlobaphene, and green leaf volatile biosynthesis, as well as pigment accumulation in tissues. It is linked to defence responses, including upregulation of phytoalexin biosynthesis, defence against fungi and insects, and response to wounding and stress. CaMYB12 is also associated with virus-induced post-transcriptional gene silencing and both up- and down-regulation of transcription. Trait associations include pungency and flavonoid content. Studies of related genes in other species further connect the MYB family to pigment and defence-related processes.