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Karen A Williams
National Germplasm Resources Laboratory
Botanist

Phone: (301) 504-5421
Fax: (301) 504-6305
Room 329C

10300 BALTIMORE AVENUE
BLDG 003 BARC-WEST
BELTSVILLE, MD 207052350
Projects
Plant Exploration in Florida for Wild Relatives of Amaranth, Millets, Bedding Plants, Corn and Quinoa
Cooperative Agreement (A)
  Accession Number: 432686
Plant Genetic Resource Acquisition, Conservation, International Exchange, and Taxonomic and Nomenclatural Support for the U.S. National Plant Germplasm System
In-House Appropriated (D)
  Accession Number: 434391
Conservation of Plant Genetic Resources
Non-Funded Cooperative Agreement (N)
  Accession Number: 430776
Sourcing Barley Accessions from the Vavilov Institute in Russia to Enhance Cold Tolerance and Stem Rust Resistance
Non-Assistance Cooperative Agreement (S)
  Accession Number: 433428
Plant Exploration in North Carolina and Tennessee to Collect Woody Landscape Germplasm for Crop Improvement
Non-Assistance Cooperative Agreement (S)
  Accession Number: 434546
Collection of Oak Leaf Hydrangea (Hydrangea quercifolia Bartram), across its Range in the Southeastern U.S.
Non-Assistance Cooperative Agreement (S)
  Accession Number: 434597
Plant Exploration in Florida to Collect Germplasm of Vaccinium Species for Crop Improvement
Non-Assistance Cooperative Agreement (S)
  Accession Number: 434764
Plant Exploration in California, Arizona and New Mexico to Collect Amaranthus Germplasm for Crop Improvement
Non-Assistance Cooperative Agreement (S)
  Accession Number: 436599
Germplasm Acquisition and Taxonomic Support for the U.S. National Plant Germplasm System
Non-Assistance Cooperative Agreement (S)
  Accession Number: 437015

Publications (Clicking on the reprint icon Reprint Icon will take you to the publication reprint.)
The USDA plant introduction program ()
Williams, K., Volk, G.M. 2020. The USDA plant introduction program. In: Volk, G.M., Byrne, P., editors. Crop Wild Relatives in Genebanks. Fort Collins, Colorado: Colorado State University.
Toward integrated conservation of North America’s crop wild relatives Reprint Icon - (Peer Reviewed Journal)
Khoury, C.K., Greene, S.L., Krishnan, S., Miller, A., Moreau, T., Williams, K.A., Rodriguez-Bonilla, L., Spurrier, C.S., Zalapa, J.E., Nabhan, G.P. 2020. Toward integrated conservation of North America’s crop wild relatives. Natural Areas Journal. 40(1):96-100. https://doi.org//10.3375/043.040.0111.
Conservation of crop wild relatives in the United States - (Abstract Only)
Wild plant genetic resources in North America: An overview Reprint Icon ()
Greene, S.L., Williams, K.A., Khoury, C.K., Kantar, M.B., Marek, L.F. 2018. Preface. In: Greene, S.L., Williams, K.A., Khoury, C.K., Kantar, M.B., Marek, L.F., editors. North American Crop Wild Relatives. Volume 1: Conservation Strategies. New York, NY: Springer, Cham. p. xiii-xiv.
Preface Reprint Icon ()
Greene, S.L., Williams, K.A., Khoury, C.K., Kantar, M.B., Marek, L.F. 2019. Preface. In: Greene, S.L., Williams, K.A., Khoury, C.K., Kantar, M.B., Marek, L.F., editors. North American Crop Wild Relatives. Volume 2: Important Species. New York, NY: Springer, Cham. p. xiii-xv.
Conservation of crop wild relatives in the United States Reprint Icon ()
Williams, K. A., Greene, S. L. 2018. Conservation of Crop Wild Relatives in the USA. In: Greene, S., Williams, K.A., Khoury, C., Kantar, M., Marek, L., editors. North American Crop Wild Relatives, Volume 1. Cham, Switzerland: Springer. p. 97-154.
North American crop wild relatives, volume 1: conservation strategies Reprint Icon ()
Greene, S.L., Williams, K.A., Khoury, C.K., Kantar, M.B., Marek, L.F. 2018. North American Crop Wild Relatives. Volume 1: Conservation Strategies. New York, NY: Springer, Cham. 346 p.
North American Crop Wild Relatives, Volume 2: Important Species Reprint Icon ()
Greene, S.L., Williams, K.A., Khoury, C.K., Kantar, M.B., Marek, L.F. 2019. North American Crop Wild Relatives. Volume 2: Important Species. New York, NY: Springer, Cham. 740 p.
Wild plant genetic resources in North America: an overview Reprint Icon ()
Greene, S.L., Khoury, C.K., Williams, K.A. 2018. Wild plant genetic resources in North America: an overview. In: Greene, S.L., Williams, K.A., Khoury, C.K., Kantar, M.B., Marek, L.F., editors. North American Crop Wild Relatives. Volume 1: Conservation Strategies. New York, NY: Springer, Cham. p. 3-32.
North American wild relatives of grain crops Reprint Icon ()
Brenner, D.M., Bockelman, H.E., Williams, K.A. 2019. North American wild relatives of grain crops. In: Greene, S., Williams, K., Khoury, C., Kantar, M., Marek, L., editors. North American Crop Wild Relatives, Volume 2. Cham, Switzerland: Springer. p. 41-82
Cranberry vulnerability statement ()
Hummer, K.E., Lewers, K.S., Bassil, N.V., Vorsa, N., Zalapa, J.E., Iorizzo, M., Williams, K.A., Tzanetakis, I. 2018. Cranberry vulnerability statement. Germplasm Resources Information Network (GRIN). https://www.ars-grin.gov/npgs/cgc_reports/cranberry_vulnerability_statement_2017.pdf.
Conservation and use of the North American Cornucopia: the way forward Reprint Icon ()
Khoury, C.K., Greene, S.L., Williams, K.A., Kanter, M.B., Marek, L.F. 2019. Conservation and use of the North American Cornucopia: the way forward. In: Greene, S.L., Williams, K.A., Khoury, C.K., Kantar, M.B., Marek, L.F., editors. North American Crop Wild Relatives. Volume 2: Important Species. New York, NY: Springer, Cham. p. 695-710.
Distributions and Conservation Priorities for Crop Wild Relatives of the United States - (Abstract Only)
Greene SL, Khoury CK. 2017. Distributions and Conservation Priorities for Crop Wild Relatives of the United States. Abstract. 44th Natural Areas Conference, Fort Collins, CO October 12-14.
North American crop wild relatives of temperate berries (Fragaria L., Ribes L., Rubus L., and Vaccinium L.) Reprint Icon ()
Hummer, K.E., Williams, K.A., Bushakra, J. 2019. North American crop wild relatives of temperate berries (Fragaria L., Ribes L., Rubus L., and Vaccinium L.). In: Greene S., Williams K., Khoury C., Kantar M., Marek L., editors. North American Crop Wild Relatives, Volume 2. Cham, Switzerland: Springer. p. 283-327. https://doi.org/10.1007/978-3-319-97121-6_9.
Conservation priorities for tree crop wild relatives in the United States - (Proceedings)
Khoury, C.K., Greene, S.L., Williams, K.A., Sosa, C., Richards, C.M. 2016. Conservation priorities for tree crop wild relatives in the United States. Symposium Proceedings. Gene Conservation of Tree Species, Chicago, IL. May 16-19, 2016.
Collaboration between the US Forest Service and the USDA Agricultural Research Service on the complementary conservation of crop wild relatives in the United States - (Abstract Only)
Collecting crop wild relatives: an emerging priority ()
Greene, S.L., Khoury, C., Williams, K.A., Wiersema, J.H., Kinard, G.R. 2015. Collecting crop wild relatives: an emerging priority. Meeting Abstract. National Native Seed Conference, Santa Fe, NM April 10-13, 2015.
Legal issues in plant germplasm collecting ()
Moore, G., Williams, K.A. 2011. Legal issues in plant germplasm collecting. Collecting Plant Genetic Diversity: Technical Guidelines. Available: http://cropgenebank.sgrp.cgiar.org/index.php?option=com_content&view=article&id=669.
Recent NPGS coordinated expeditions in the Trans-Caucasus Region to collect wild relatives of temperate fruit and nut crops - (Peer Reviewed Journal)
Postman, J.D., Aradhya, M.K., Williams, K.A., Stover, E.W., Meyer, P. 2012. Recent NPGS coordinated expeditions in the Trans-Caucasus Region to collect wild relatives of temperate fruit and nut crops. Acta Horticulturae. 948:191-198.
AN OVERVIEW OF THE U.S. NATIONAL PLANT GERMPLASM SYSTEM'S EXPLORATION PROGRAM - (Peer Reviewed Journal)
Williams, K.A. 2005. An overview of the u.s. national plant germplasm system's exploration program. Hortscience. HortScience 40(2):297-301.
GERMPLASM ACQUISITION ()
Dekker Encyclopedia of Plant and Crop Science
EVOLVING POLITICAL ISSUES AFFECTING INTERNATIONAL EXCHANGE OF ARACHIS GENETIC RESOURCES - (Peer Reviewed Journal)
USING GEOGRAPHIC INFORMATION SYSTEMS TO LOCATE GENETIC DIVERSITY OF CULTIVATED PEANUT - (Abstract Only)
EXPANDING THE BENEFITS OF BILATERAL GERMPLASM EXPLORATION: AN EXAMPLE FROM ECUADOR - (Abstract Only)
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