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United States Department of Agriculture

Agricultural Research Service

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Research Project: CONSERVATION AND CHARACTERIZATION OF GERMPLASM OF SELECTED VEGETABLE CROPS

Location: Plant Genetic Resources

2012 Annual Report


4.Accomplishments
1. Maintained genetic resources of vegetables for crop improvement and research. Genetic resources are the diverse plant varieties and lines maintained in a collection that provide the genes needed for crop improvement and research. Worldwide, vegetable breeders and other researchers need a ready source of genes to use to provide new vegetable varieties that have disease and pest resistance, tolerance to abiotic stresses, increased quality, and improved nutrition. ARS researchers at Geneva, New York maintained approximately 12,485 accessions of tomato, onion, radish, winter squash, cabbage, cauliflower, broccoli, other cole crops, celery, tomatillo, asparagus and other vegetables for the long-term and 2 new accessions of onion were acquired. This provided the genetic diversity needed to develop vegetable varieties with disease and pest resistance, tolerance to abiotic stresses, and varieties with improved quality and nutrition; and ensured its future availability in the long-term.

2. Ensuring sufficient quantities of seed of vegetable genetic resources are available for distribution. There is a continuing need for regeneration of vegetable varieties, wild plants, and researcher’s lines to have seed available for crop researchers that provide necessary genes for crop improvement and research. This is due to loss of viability over time and the usage of seed as it is distributed for crop improvement and research. During FY 2012 approximately 295 accessions were regenerated by ARS researchers at Geneva, New York and 32 accessions of short day onions were regenerated at New Mexico State University through a cooperative agreement, and 12 accessions of long day onions were regenerated at Nunhems Inc. through a cooperative agreement; additionally, 113 biennial crop accessions were grown to produce plants for use in seed production in 2012. This allowed us to continue to distribute seed; 10,003 seed lots of 7,989 accessions were distributed in 295 orders (240 domestic and 55 foreign). This germplasm is available for use by qualified researchers and other bona fide users worldwide.


Review Publications
Panthee, D., Cao, C., Debenport, S., Rodriguez, G., Labate, J.A., Robertson, L.D., Breksa Iii, A.P., Van Der Knaap, E., Mcspadden-Gardener, B. 2012. Magnitude of genotype x environment interactions affecting tomato fruit quality. HortScience. 47:721-726.

Last Modified: 8/29/2014
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