Understanding the molecular mechanisms underlying graft success in grapevine.

ABSTRACT:

Background

Grafting is an intensive commercial practice required to protect the European grapevine against the Phylloxera pest. Rootstocks resistant to this pest are hybrids of American vine species with different levels of compatibility with European Vitis vinifera varieties. Aiming to understand what drives grafting compatibility in grapevine, a transcriptomic approach was used to search for master regulators of graft success. Two scion/rootstock combinations, with different levels of compatibility, were compared in a nursery-grafting context at two stages, at 21 and 80 days after grafting.

Results

In the most compatible combination, an earlier and higher expression of genes signaling the metabolic and hormonal pathways as well as a reduced expression of genes of the pheno

SUBMITTER: Assuncao M 

PROVIDER: S-EPMC6737599 | biostudies-literature | 2019 Sep

REPOSITORIES: biostudies-literature