1. NPGS Genebanks and NCPN Clean Plant Centers
Joseph Postman
Plant Pathologist & Curator
National Clonal Germplasm Repository
Corvallis, Oregon
May 2010

2. U.S. National Plant Germplasm System (NPGS)
Scope of Collections
Pathogen Status (germplasm born pathogens)
Plant Distribution (dilution of NCPN efforts?)
How can NCPN benefit from NPGS

3. U.S. National Plant Germplasm System
441,000 Accessions
11,000 Species
Germplasm Resources Information Network
(GRIN)

4. National Clonal Germplasm Repositories

5. Scope of NPGS Collections: Davis

6. Scope of NPGS Collections: Geneva
Scope of NPGS Collections: Riverside

7. Scope of NPGS Collections: Corvallis

8. (5100 field plants, 7200 screenhouse plants)
NCGR Corvallis – Collection Summary 10,500 total plant and seed accessions
(5100 field plants, 7200 screenhouse plants)

9. ex situ clonal collections:
Screenhouse
Orchard

10. Repository Objectives
Collect
Maintain
Evaluate
Distribute

11. laboratory assay (ELISA, PCR)
Virus
Detection
visual inspection
biological assay
laboratory assay (ELISA, PCR)

12. Virus
Elimination
Heat treatment
Micropropagation

13. Known Infected Accessions

14. Plant Distribution
521 requests received
5,800 items shipped

15. Full Pathogen Testing exceeds genebank capabilities

16. Priorities for Genebank Testing?
Viruses that impact genebank management
Pollen transmitted (Raspberry bushy dwarf, Blueberry shock)
Accessions that are highly requested
core accessions
cultivars

17. Should we not distribute virus infected accessions?

18. Collaboration between NPGS and NCPN
Introduction of NPGS accessions to nurseries is more efficient that foreign introductions.
Include high-priority NPGS accessions in clean plant testing/clean-up.
NPGS can safeguard obsolete NCPN accessions.
???