Candidate genes and SNPs associated with stomatal conductance under drought stress in Vitis.

ABSTRACT:

Background

Understanding the complexity of the vine plant's response to water deficit represents a major challenge for sustainable winegrowing. Regulation of water use requires a coordinated action between scions and rootstocks on which cultivars are generally grafted to cope with phylloxera infestations. In this regard, a genome-wide association study (GWAS) approach was applied on an 'ad hoc' association mapping panel including different Vitis species, in order to dissect the genetic basis of transpiration-related traits and to identify genomic regions of grape rootstocks associated with drought tolerance mechanisms. The panel was genotyped with the GrapeReSeq Illumina 20 K SNP array and SSR markers, and infrared thermography was applied to estimate stomatal conductance values du

SUBMITTER: Trenti M 

PROVIDER: S-EPMC7789618 | biostudies-literature | 2021 Jan

REPOSITORIES: biostudies-literature