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Curator and CGC Interactions: A Curator’s Perspective
Gary PedersonUSDA, ARS, PGRCU
Griffin, GA
CGC experience• Clover plant breeder – 18 years• Early user of GRIN and plant genetic
resources• Requested 3,408 accessions
• Clover CGC member – 15 years• Clover CGC Chair – 3 years
• Attended three CGC Chairs meetings
NPGS experience• Research Leader – 9 years• Plant Genetic Resources Conservation
Unit, Griffin, GA
• Annual clover curator – 9 years• Sorghum coordinator – 9 years• Currently acting sorghum curator
• Acting Vigna curator – 3 years
NPGS experience• CGCs for Griffin collections
• Capsicum (pepper)• Clover and Special Purpose Legumes• Cucurbit• Forage and Turf Grass• New Crops• Peanut• Sorghum and Millet• Sweetpotato• Vigna (cowpea, mung bean)
NPGS experience• CGCs for Griffin collections
• Capsicum (pepper) (2)• Clover and Special Purpose Legumes (9) • Cucurbit (1)• Forage and Turf Grass (8)• New Crops (2)• Peanut (3)• Sorghum and Millet (9) • Sweetpotato (3)• Vigna (cowpea, mung bean) (4)
Expectations – Plant breeder and CGC member
• Large, genetically-diverse collection that contained all the variation that I needed.
• All accessions viable and available.• All accessions completely characterized
for all descriptors.• Viewed GRIN as a big spreadsheet with a lot of
holes that needed to be filled.
Realities – Research Leader and Curator
• Financial and physical resources limit the size of plant genetic resources collections.
• Germination testing and seed regeneration take labor, time, and money.
• Viability, availability, and backups are higher priorities than characterization/evaluation.
Realities – Everything takes money and labor
Number of federal employees at Griffin*Graph from NPGCC presentation by Peter Bretting (2010).
Sample GS-4 salary (x$1,000) at Griffin
Realities – Everything takes time
• If an action by one person takes one minute to complete for one accession:
• 60 accessions per hour• 480 accessions per day• 2,400 accessions per week• 37.8 weeks (8+ months) for all 90,668 accessions
at Griffin
Realities – Everything takes time
• Germination testing• Since 2002, 67% of accessions tested
• Deposit seed in -18 C for long-term storage• Since 2001, bulk of seed for 70% of accessions are
in -18 C storage
How can CGCs help?• Give advice (gaps in collection, acquisitions, duplicates)• Inform curator and RL of users’ concerns.• Provide characterization and evaluation data for GRIN
– once the data has been published.
• Provide information on use of plant genetic resources in publications and cultivar development.
• Suggest improvements to NPGS (collection, descriptors, GRIN, data).
Goals – Successful CGC/Curator Interaction• Develop and preserve excellent, useful plant genetic
resources collections.• Work together to improve plant genetic resources
collections.• Be persistent in making progress (it takes time!)
• Help get the collections to where they should be.• Look ahead to the future and future use of plant
genetic resources.
After all, great germplasm collectionsaren’t built in a day!