National Program Leader For:

• Cocoa, Coffee, and Alternative Crops Research
  
  Accession Number: 49113
  
  
• Staffing and Operation for National Clonal Repositories for Plant Germplasm
  
  Accession Number: 141156
  
  
• Information Transfer - Genetic Resources
  
  Accession Number: 142364
  
  
• Evaluation of Germplasm of Horticulture and Sugarcrops
  
  Accession Number: 145745
  
  
• INTERNATIONAL AND DOMESTIC COOPERATIVE AGREEMENTS
  
  Accession Number: 418390
  
  
• International and Domestic Cooperative Agreements
  
  Accession Number: 425614
  
  
• Management of Specimens and Associated Information in the U.S. National Fungus Collections, with Emphasis on Critically Important Plant Pathogenic Fungi
  
  Accession Number: 434097
  
  
• Management and Characterization of Agriculturally and Biotechnologically Important Microbial Genetic Resources and Associated Information
  
  Accession Number: 434131
  
  
• Subtropical and Tropical Ornamental Genetic Resource Management, Characterization, and Genetic Improvement
  
  Accession Number: 434198
  
  
• Management of Genetic Resources and Associated Information in the USDA-ARS National Small Grains Collection
  
  Accession Number: 434208
  
  
• Seed Increase, Evaluation, and Phytosanitary Assessment of Quarantined and Tropically-adapted Genetic Resources
  
  Accession Number: 434218
  
  
• Conservation and Utilization of Tropical and Subtropical Tree Fruit, Cacao and Bamboo Genetic Resources
  
  Accession Number: 434221
  
  
• Management of Temperate-Adapted Fruit, Nut, and Specialty Crop Genetic Resources and Associated Information
  
  Accession Number: 434229
  
  
• Plant Genetic Resource Management and Information System Development
  
  Accession Number: 434242
  
  
• Management of Temperate-adapted Forage Legume Genetic Resources and Associated Information
  
  Accession Number: 434246
  
  
• Management and Utilization of Maize Genetic Stocks and Associated Information
  
  Accession Number: 434253
  
  
• Management and Utilization of Cotton Genetic Resources and Associated Information
  
  Accession Number: 434259
  
  
• Management and Development of Apple, Cold-Hardy Grape, and Tart Cherry Genetic Resources and Associated Information
  
  Accession Number: 434266
  
  
• Management of the National Collection of Carya Genetic Resources and Associated Information
  
  Accession Number: 434273
  
  
• Conservation, Characterization, Evaluation, and Distribution of Grain, Oilseed, Vegetable, Subtropical and Tropical Legume, and Warm Season Grass Genetic Resources and Associated Information
  
  Accession Number: 434296
  
  
• Management, Characterization, and Evaluation of Pacific Tropical and Subtropical Fruit and Nut Genetic Resources and Associated Information
  
  Accession Number: 434299
  
  
• Managing Genetic Resources and Associated Information of Grape, Tree Fruit, Tree Nut, and Other Specialty Crops Adapted to Mediterranean Climates
  
  Accession Number: 434303
  
  
• Management of Genetic Resources and Associated Information in the U. S. Potato Genebank
  
  Accession Number: 434313
  
  
• Characterization, Systematics, and Acquisition of Genetic Resources of Carrot, Potato, and Related Wild Species
  
  Accession Number: 434314
  
  
• Management of Arid Land Plant Genetic Resources and Regeneration of Accessions with Special Climatic Requirements
  
  Accession Number: 434316
  
  
• Plant and Microbial Genetic Resource Preservation
  
  Accession Number: 434330
  
  
• Conservation, Management and Distribution of Citrus and Date Genetic Resources and Associated Information
  
  Accession Number: 434335
  
  
• Management of Priority Legume, Oilseed, Vegetable, Forage Grass, Sugar, Ornamental, and Medicinal Plant Genetic Resources and Associated Information
  
  Accession Number: 434340
  
  
• Conservation, Evaluation, and Distribution of Sugarcane, Mango, Avocado and Other Subtropical and Tropical Genetic Resources and Associated Data
  
  Accession Number: 434342
  
  
• Innovative Strategies and Methods for Improving the Management, Availability, and Utility of Plant Genetic Resource Collections
  
  Accession Number: 434353
  
  
• Conservation, Characterization, Evaluation of Temperate-Adapted Woody Landscape Plant Genetic Resources and Associated Data
  
  Accession Number: 434355
  
  
• Plant Genetic Resource Acquisition, Conservation, International Exchange, and Taxonomic and Nomenclatural Support for the U.S. National Plant Germplasm System
  
  Accession Number: 434391
  
  
• Characterizing and Evaluating the Genetic Diversity and Horticultural Value of Genetic Resources for Cacao and Other Tropical tree crops Economically important to the United States
  
  Accession Number: 434392
  
  
• Develop, Enhance, and Operate GRIN-Global and Other Genetic Resource Information Systems to Support the U.S. National Plant Germplasm System and Other USDA-ARS Genetic Resource Collections
  
  Accession Number: 434403
  
  
• Systematics, Nomenclature, and Genetic Diversity of Priority Genera of Woody Landscape Plants
  
  Accession Number: 434433
  
  
• Conservation and Utilization of Priority Vegetable Crop Genetic Resources and Associated Information
  
  Accession Number: 434562
  
  
• Development and Application of Genomic-assisted Breeding Strategies to Produce Disease-resistant Cacao Genetic Resources
  
  Accession Number: 434787
  
  

Publications (Clicking on the reprint icon will take you to the publication reprint.)

Educating the next generation of genebank workers -

Byrne, P., Volk, G.M., Bretting, P.K. 2019. Educating the next generation of genebank workers. Crop Science Society of America. 2018 ASA/CSSA Meeting.

Role of the U. S. Department of Agriculture’s National Genetic Resources Advisory Council (NGRAC) in Providing Strategic Recommendations for Strengthening National Genetic Resources Conservation and Use -

Global access to maize germplasm provided by the U.S. National Plant Germplasm System and by U.S. plant breeders -

Kurtz, B., Gardner, C.A., Millard, M.J., Bretting, P.K., Nickson, T., Smith, J.C. 2015. Global access to maize germplasm provided by the U.S. National Plant Germplasm System and by U.S. plant breeders. Crop Science. 56(3):931-941.

Procedures and best management practices for genetically engineered traits in USDA/ARS germplasm and breeding lines -

Greene, S.L., Blalock, J., Gardner, C.A., Hellier, B.C., Mcgrath, J.M., Nelson, R.L., Percy, R.G., Scorza, R., Scott, R.A., Yeater, K.M., Bretting, P.K. 2015. Procedures and best management practices for genetically engineered traits in USDA/ARS germplasm and breeding lines. Meeting Abstract. Crop Science Society of America, Minneapolis, MN. Nov. 15-18, 2015.

The vulnerability of US apple (Malus) genetic resources -

Volk, G.M., Chao, C.T., Norelli, J.L., Brown, S.K., Fazio, G., Peace, C., McFerson, J., Zhong, G., Bretting, P.K. 2015. The vulnerability of US apple (Malus) genetic resources. Genetic Resources and Crop Evolution. 62(5):765-794. doi:10.1007/s10722-014-0194-2.

Using the GRIN-Global System to Identify Useful Plant Genetic Resources & Information -

Gardner, C.A., Cyr, P.D., Millard, M.J., Gu, L.M., Reisinger, M.A., Emberland, G.P., Sinnott, Q.P., Chung, J.C., Kinard, G.R., Bretting, P.K. 2012. Using the GRIN-Global System to Identify Useful Plant Genetic Resources & Information. Agronomy Society of America, Crop Science Society of America, Soil Science Society of America Meeting. Abstract 259-4.

The GRIN-Global Information Management System – Public Interface Demonstration and Input Opportunity -

Cyr, P.D., Gardner, C.A., Little, R.E., Gu, L.M., Weaver, B.E., Millard, M.J., Emberland, G.P., Reisinger, M.A., Sinnott, Q.P., Kinard, G.R., Mackay, M., Guarino, L., Bretting, P.K. 2011. The GRIN-Global Information Management System – Public Interface Demonstration and Input Opportunity. Plant and Animal Genome Conference. Abstract C904, p. 267.

GRIN-Global: An International Project to Develop a Global Plant Genebank and Information Management System -

Cyr, P.D., Weaver, B., Millard, M.J., Gardner, C.A., Bohning, M.A., Emberland, G.P., Sinnott, Q.P., Kinard, G.R., Franco, T., Mackay, M., Guarino, L., Bretting, P.K. 2009. GRIN-Global: An International Project to Develop a Global Plant Genebank and Information Management System [abstract]. Plant & Animal Genome XVII: International Conference on the Status of Plant & Animal Genome Research. Poster abstract number 800, p. 136.

GRIN-Global: An International Project to Develop a Global Plant Genebank Information Management System -

Postman, J.D., Bretting, P.K., Kinard, G.R., Cyr, P.D., Weaver, B., Millard, M.J., Gardner, C.A., Bohning, M.A., Emberland, G.P., Sinnott, Q.P., Ayala Silva, T., Hummer, K.E., Franco, T., Mackay, M., Guarino, L. 2010. GRIN-Global: An International Project to Develop a Global Plant Genebank Information Management System. Acta Horticulturae. 859:49-55.

The GRIN-Global Information Management System – A Preview and Opportunity for Public User Input -

Cyr, P.D., Little, R.E., Weaver, B.E., Millard, M.J., Gardner, C.A., Emberland, G.P., Reisinger, M.A., Sinnott, Q.P., Kinard, G.R., Bretting, P.K. 2010. The GRIN-Global Information Management System – A Preview and Opportunity for Public User Input [abstract]. Plant and Animal Genome XVII Conference. P800.

GRIN-Global: An International Project to Develop a Global Plant Genebank and Information Management System -

Cyr, P.D., Weaver, B.E., Millard, M.J., Gardner, C.A., Bohning, M.A., Emberland, G.P., Sinnott, Q.P., Kinard, G.R., Franco, T., Mackay, M., Guarino, L., Postman, J.D., Hummer, K.E., Ayala Silva, T., Bretting, P.K. 2009. GRIN-Global: An International Project to Develop a Global Plant Genebank and Information Management System [abstract]. 21st Annual AAIC Meeting-The Next Generation of Industrial Crops, Processes, and Products. p. 46.

A global portal enabling worldwide access to information on conservation and use of biodiversity for food and agriculture -

Arnaud, E., Dias, S., Mackay, M., Cyr, P.D., Gardner, C.A., Bretting, P.K., Kinard, G.R., Guarino, L. 2010. A global portal enabling worldwide access to information on conservation and use of biodiversity for food and agriculture. In: Maurer, L., Tochtermann, K. Information and Communication Technologies for Biodiversity Conservation and Agriculture. Aachen, Germany: Shaker Verlag. p. 173-186.

GRIN-Global: An International Project to Develop a Global Plant Genebank and Information Management System -

Bretting, P.K., Kinard, C.E., Cyr, P.D., Weaver, B., Millard, M.J., Gardner, C.A., Bohning, M.A., Emberland, G.P., Sinnott, Q.P., Postman, J.D., Hummer, K.E., Ayala Silva, T., Franco, T., Mackay, M., Gaurino, L. 2009. GRIN-Global: An International Project to Develop a Global Plant Genebank and Information Management System. Meeting Abstract. 44(4):1179.

GRIN-Global: An International Project to Develop a Global Plant Genebank and Information Management System -

Cyr, P.D., Weaver, B., Millard, M.J., Gardner, C.A., Bohning, M.A., Emberland, G.P., Sinnott, Q.P., Kinard, G.R., Bretting, P.K. 2009. GRIN-Global: An International Project to Develop a Global Plant Genebank and Information Management System. ASA-CSSA-SSSA Annual Meeting Abstracts.

GRIN-Global: An International Project to Develop a Global Plant Genebank and Information Management System -

Cyr, P.D., Weaver, B., Millard, M.J., Gardner, C.A., Bohning, M.A., Emberland, G.P., Sinnott, Q.P., Kinard, G.R., Postman, J.D., Franco, T., Mackay, M., Guarino, L., Bretting, P.K. 2009. GRIN-Global: An International Project to Develop a Global Plant Genebank and Information Management System. Proceedings American Society of Horticultural Sciences. HORTSCIENCE. 44(4):1179.

GRIN-Global: An International Project to Develop a Global Plant Genebank and Information Management System -

Cyr, P.D., Weaver, B.E., Millard, M.J., Gardner, C.A., Bohning, M.A., Emberland, G.P., Sinnott, Q.P., Kinard, G.R., Franco, T., Mackay, M., Guarino, L., Postman, J.D., Hummer, K.E., Ayala Silva, T., Bretting, P.K. 2009. GRIN-Global: An International Project to Develop a Global Plant Genebank and Information Management System [abstract]. Maize Genetics Conference Abstracts. 51:P43.

Gene banks offer breeders access to germplasm: Germplasm collections help to preserve genetic diversity -

Robbins, J., Widrlechner, M.P., Olsen, R.T., Reed, S.M., Meerow, A.W., Hummer, K.E., Bretting, P.K., Allenstein, P., Krautmann, M. 2008. Gene banks offer breeders access to germplasm: Germplasm collections help to preserve genetic diversity. Nursery Management and Production. 24(5):53-58.

PHYLOGENETIC RELATIONSHIPS AMONG NORTH AMERICAN POPCORNS AND THEIR EVOLUTIONARY LINKS TO MEXICAN AND SOUTH AMERICAN POPCORNS -

Santacruz-Varela, A., Widrlechner, M.P., Ziegler, K.E., Salvador, R.J., Millard, M.J., Bretting, P.K. 2004. Phylogenetic relationships among North American popcorns and their evolutionary links to Mexican and South American popcorns. Crop Science. 44: 1456-1467.

DYNAMIC CONSERVATION OF PLANT GENETIC RESOURCES -

ADAPTING THE CONTENT OF A TRADITIONAL COURSE FOR DELIVERY VIA THE WORLD WIDE WEB (WWW) -

ALLOZYME VARIATION IN DOMESTICATED HELIANTHUS ANNUUS AND WILD RELATIVES -

GENETIC VULNERABILITY AND EROSION IN ANNUAL CROPS -

ALLOZYME VARIATION IN DOMESTICATED HELIANTHUS ANNUUS AND WILD RELATIVES: A SURVEY OF SELECTED ACCESSIONS FROM THE NATIONAL PLANT GERMPLASM SYSTEM -

GENETIC MARKERS AND HORTICULTURAL GERMPLASM MANAGEMENT -

ISOZYME GENETIC MARKERS AND HELIANTHUS GERMPLASM MANAGEMENT -

ISOZYME GENETIC MARKERS AND HELIANTHUS GERMPLASM MANAGEMENT -

IMAGE-INTEGRATED COMPUTER CATALOGING OF MAIZE GERMPLASM -

MANAGING LARGE DIVERSE GERMPLASM COLLECTIONS -

THE CO-EVOLUTION OF MAIZE AND HUMAN CULTURES: AN INTERDISCIPLINARY APPROACH -

MAIZE GENETIC RESOURCE MANAGEMENT -

DEVELOPMENT OF AN INTERDISCIPLINARY RESEARCH APPROACH FOR UNDERSTANDING THECO-EVOLUTION OF MAIZE AND HUMAN CULTURE -