• The role of VvMYBA2r and VvMYBA2w alleles of the MYBA2 locus in the regulation of anthocyanin biosynthesis for molecular breeding of grape skin coloration

    9 days ago - By Wiley

    Summary
    In grape, MYBA1 and MYBA2 at the color locus are the major genetic determinants of grape skin color, and the mutation of two functional genes from these loci leads to white skin color. This study aimed to elucidate the regulation of grape berry coloration by isolating and characterizing VvMYBA2w and VvMYBA2r alleles. The over‐expression of VvMYBA2r up‐regulated the expression of anthocyanin biosynthetic genes and resulted in higher anthocyanin accumulation in transgenic tobacco than wild‐type plants, especially in flowers. However, the ectopic expression of VvMYBA2w inactivated the...
    Read more ...