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Pierce's Disease
Research Updates

piercesdisease.cdfa.ca.gov

What is Pierce's Disease?

Pierce's Disease is a bacterial infection, which is spread by bugs that feed on grapevines, particularly the "glassy winged sharpshooter." Grapevines that become infected with PD can quickly become sick and die.

glassy-winged sharpshooter

BREEDING PIERCES DISEASE RESISTANT TABLE AND RAISIN GRAPES

  • Author(s): Ramming, David; Tenscher, Andrew;
  • Abstract: This project is jointly funded through the California Table Grape Commission and the California Raisin Marketing Board and the CDFA/APHIS Pierces disease program. It is a collaborative effort between UC Davis and the USDA/ARSFresno, and is focused on breeding new PD resistant cultivars of table and raisin grapes. This project also builds off the Walker lab portion of the AVF Long Range Project on PD, which focuses on identification of DNA markers for Xylella fastidiosa resistance and the mapping of X. fastidiosa resistance leading to identification of resistance genes. Success in the AVF PD project will expedite progress in PD resistant table/raisin grape breeding by accelerating the selection process, fine-tuning parent selection, and allowing future resistance gene transformation efforts.
  • Publication Date: Dec 2001
  • Journal: 2001 Pierce's Disease Research Symposium

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