Genebank details

National Arboretum-Germplasm Unit, USDA/ARS
Institute code
Type
Governmental
Accessions in Genesys
Location
Latitude
38.91
Longitude
-76.96
Most represented Crops
yam
Not specified
20,919
Most represented Crop names
grasspea
4
yam
1
Not specified
20,919
Most represented Genera
Rhododendron
Ilex
Acer
Viburnum
Hemerocallis
Other
16,315
Most represented Species
Rhododendron hybr.
Hemerocallis sp.
Narcissus hybr.
Buxus sempervirens
Cornus florida
Other
18,089
Biological status of accession
Other
Advanced/improved cultivar
Wild
Clonal selection
Breeders Line
Other
1
Provenance of material
United States of America
China
Japan
Republic of Korea
Russia
Other
1,069
Not specified
12,782
Type of Germplasm storage
Seed collection
Field collection
Other
Not specified
16,745
Curation type
Not specified
20,924
FAO WIEWS code of donor institute
Not specified
20,924
Breeder code
Not specified
20,924
Site of safety duplication
USA005
Not specified
20,606
Safety duplicated in Svalbard
Not in SGSV
ITGPRFA Multi-lateral system
Not specified
20,924
Available for distribution
Not specified
20,924
Last updates of passport data
June 6, 2025
June 21, 2024
Passport Data Completeness Index (PDCI)
Genesys uses the PDCI as an indicator of the completeness of published passport data. The PDCI uses the presence or absence of data points in the documentation of a genebank accession, taking into account the presence or value of other data points (van Hintum et al. 2011). For example, a wild accession should have a well-defined collection site but no variety name. The PDCI ranges from 0 to 10, where 0 is the minimum score assigned to rather incomplete passport records and 10 is the maximum score assigned to very complete passport records. Any type of accession, wild, landrace, breeding material or modern variety, can attain the PDCI’s maximal score.
Average PDCI score for 20,972 accessions is 4.00, with minimum score of 2.50 and maximum score of 7.15.