Functional redundancy of R2R3-MYB transcription factors involved in anthocyanin biosynthesis is manifested in anther pigmentation in petunia.

Accumulation of anthocyanin provides pigmentation in plant tissues. In petunia, gene expression profiles that lead to anthocyanin production have been extensively characterized in terms of pigmentation in flower petals. Anthers are also pigmented, but the transcriptional control of the genes for anthocyanin biosynthesis in anthers has not been fully characterized.