conference schedule and program with abstracts - Horticulture ...

K-4
Genetics and Genomics of Grapevine Responses to Abiotic Stress
Anne Fennell
201 Northern Plains Bio-stress Laboratory, South Dakota State University, Brookings, SD, USA
Corresponding author: anne.fennell@sdstate.edu
The Vitaceae family is adapted to diverse environmental conditions as evidenced by the
distribution of species in temperate and subtropical climatic regions. However, production of
quality grapes for wine, juice, raisin and table grapes is frequently limited by abiotic stress as a
result of limited cultivar selection and/or marginal environmental conditions for growth and
development. The ability to identify, develop and match genotypes to geographical regions is
also limited by the complexity of abiotic stress (drought, salt, and temperature) traits,
scion/rootstock interactions and the long generation time in grapevines. Although many
common responses have been identified for abiotic stressors, identification of tolerant
phenotypes coupled with genetic and genomic analysis is critical for defining the genetic
mechanisms that promote optimal timing responses resulting in tolerance to a given abiotic
stress. Phenotypic and genetic analysis coupled with emerging genomic information and tools
provide exciting opportunities to improve selection for and development of management
strategies for abiotic stress tolerance.
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