Genetic mechanisms underlying the methylation level of anthocyanins in grape (Vitis vinifera L.).

ABSTRACT:

Background

Plant color variation is due not only to the global pigment concentration but also to the proportion of different types of pigment. Variation in the color spectrum may arise from secondary modifications, such as hydroxylation and methylation, affecting the chromatic properties of pigments. In grapes (Vitis vinifera L.), the level of methylation modifies the stability and reactivity of anthocyanin, which directly influence the color of the berry. Anthocyanin methylation, as a complex trait, is controlled by multiple molecular factors likely to involve multiple regulatory steps.

Results

In a Syrah × Grenache progeny, two QTLs were detected for variation in level of anthocyanin methylation. The first one, explaining up to 27% of variance, colocalized with a cluster o

SUBMITTER: Fournier-Level A 

PROVIDER: S-EPMC3264682 | biostudies-literature | 2011 Dec

REPOSITORIES: biostudies-literature