Figure 4From: Transcriptional control of anthocyanin biosynthetic genes in extreme phenotypes for berry pigmentation of naturally occurring grapevinesAnthocyanin methoxylation and expression of O -methyltransferase. (A) Percentage of methoxylated anthocyanins (peonidin, petunidin and malvidin) among 3-monoglucoside anthocyanins; (B) OMT gene expression in four reference cultivars at four ripening stages. At mid-véraison green berries were analysed separately from red berries on the same cluster; (C) pattern of OMT gene expression normalised to the expression level of the anthocyanin biosynthetic gene UFGT (OMT /UFGT) in all cultivars.Back to article page