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United States Department of Agriculture

Agricultural Research Service

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CHRISTOPHER M RICHARDS
Plant Germplasm Preservation Research Unit
Research Geneticist (Plants)

Phone: (970) 495-3201
Fax: (970) 221-1427
1111 S MASON ST
FORT COLLINS, CO, 80521-4500

Projects
Innovations that Improve the Efficiency and Effectiveness of Managing and Preserving Ex Situ Plant Germplasm Collections
Appropriated (D)
  Accession Number: 424585
CHARACTERIZATION OF GENOMIC DIVERITY AND EVOLUTIONARY ORIGINS OF THE USDA-ARS MALUS GERMPLASM COLLECTION
Nonfunded Cooperative Agreement (N)
  Accession Number: 422432
Post-Harvest Phenotypic Evaluation of Landrace Accession of Jordanian Barley
Specific Cooperative Agreement (S)
  Accession Number: 427000

Publications (Clicking on the reprint icon Reprint Icon will take you to the publication reprint.)
Application of genetic and spatial analyses to identify collection priorities for wild Malus species - (Abstract Only)
Volk, G.M., Richards, C.M., Henk, A.D., Baldo, A.M., Fazio, G., Chao, C.T. 2014. Application of genetic and spatial analyses to identify collection priorities for wild Malus species [abstract]. 7th International Rosaceae Genomics Conference. p. 84.
Effect of a geographic barrier on adaptation in the dwarf sunflower (Helianthus pumilus Nutt.) - (Peer Reviewed Journal)
Reeves, P.A., Richards, C.M. 2014. Effect of a geographic barrier on adaptation in the dwarf sunflower (Helianthus pumilus Nutt.). International Journal of Plant Sciences. 175:688-701.
Genetic structure and gene flow in Beta vulgaris subspecies maritima along the Atlantic coast of France Reprint Icon - (Peer Reviewed Journal)
Richards, C.M., Reeves, P.A., Fenwick, A.L., Panella, L.W. 2014. Genetic structure and gene flow in Beta vulgaris subspecies maritima along the Atlantic coast of France. Genetic Resources and Crop Evolution. 61(3):651-662. DOI 10.1007/s10722-013-0066-1.
Characterization of Libyan olive, olea europaea L., cultivars using morpholigical data - (Abstract Only)
Abdul, S., Volk, G.M., Richards, C.M., Hughes, H. 2013. Characterization of Libyan olive, olea europaea L., cultivars using morpholigical data. American Society for Horticultural Science Meeting, Paper No.15849.
Diversity captured in the USDA-ARS National Plant Germplasm System apple core collection - (Peer Reviewed Journal)
Gross, B., Volk, G.M., Richards, C.M., Henk, A.D., Forsline, P., Szewc-Mcfadden, A.K., Fazio, G., Chao, C.T. 2013. Diversity captured in the USDA-ARS National Plant Germplasm System apple core collection. Journal of the American Society for Horticultural Science. 138(5):375-381.
Malus sieversii: a diverse Central Asian apple species in the USDA-ARS National Plant Germplasm System - (Peer Reviewed Journal)
Volk, G.M., Henk, A.D., Richards, C.M., Forsline, P.L., Chao, C.T. 2013. Malus sieversii: a diverse Central Asian apple species in the USDA-ARS National Plant Germplasm System. HortScience. 48(12):1440-1444.
Genetic structure and immigation in French sea beet - (Abstract Only)
Panella, L.W., Richards, C.M., Fenwick, A.L., Reeves, P.A. 2013. Genetic structure and immigation in French sea beet. Meeting Abstract. ASSBT Meetings, Anaheim, CA. 02/27/2013.
Genome-wide survey of genetic diversity of apple using genotyping-by-sequencing - (Abstract Only)
Gardner, K., Schwaninger, H.R., Dann, S., Baldo, A.M., Chao, C.T., Fazio, G., Volk, G.M., Richards, C.M., Zhong, G., Myles, S. 2013. Genome-wide survey of genetic diversity of apple using genotyping-by-sequencing [abstract]. Annual International Plant & Animal Genome Conference. W248.
Genetic diversity of wild European and Mediterranean pear species - (Abstract Only)
Volk, G.M., Richards, C.M., Henk, A.D., Bassil, N.V., Postman, J.D. 2012. Genetic diversity of wild European and Mediterranean pear species (abstract). 6th Rosaceous Genomics Conference (RGC6). September 30 - October 4, 2012, Trento, Italy. p. 130-131.
The USDA-ARS National Plant Germplasm System Malus collection: diversity of cultivars and wild species - (Abstract Only)
Volk, G.M., Richards, C.M., Gross, B.L., Fazio, G., Chao, C.T. 2012. The USDA-ARS National Plant Germplasm System Malus collection: diversity of cultivars and wild species (abstract). 6th Rosaceous Genomics Conference (RGC6), September 30 - October 4, 2012, Trento, Italy. p.131.
Biogeograhical determinants of population structure in Beta nana - (Abstract Only) - (22-Jun-12)
Genetic variation and distribution of Pacific crabapple - (Peer Reviewed Journal)
Routson, K.J., Volk, G.M., Richards, C.M., Smith, S.E., Nabhan, G.P., De Echeverria, V.W. 2012. Genetic variation and distribution of Pacific crabapple. Journal of the American Society for Horticultural Science. 137(5):325-332.
Identification of “duplicate” accessions within the USDA-ARS National Plant Germplasm System malus collection - (Peer Reviewed Journal)
Gross, B.L., Volk, G.M., Richards, C.M., Forsline, P.L., Fazio, G., Chao, C.T. 2012. Identification of “duplicate” accessions within the USDA-ARS National Plant Germplasm System malus collection. Journal of the American Society for Horticultural Science. 137(5):333-342.
Identification of interspecific hybrids among domesticated apple and its wild relatives - (Peer Reviewed Journal)
Gross, B.L., Henk, A.D., Forsline, P.L., Richards, C.M., Volk, G.M. 2012. Identification of interspecific hybrids among domesticated apple and its wild relatives. Tree Genetics and Genomes. (2012)8:1223-1235. Available: DOI 10.1007/s11295-012-0509-4.
Retention of agronomically important variation in germplasm core collections: implications for allele mining - (Peer Reviewed Journal)
Reeves, P.A., Panella, L.W., Richards, C.M. 2012. Retention of agronomically important variation in germplasm core collections: implications for allele mining. Theoretical and Applied Genetics. 124(6) 1155-1171. DOI: 10.1007/S00122-011-1776-4.
Interspecific hybridization among domesticated apple and its wild relatives - (Abstract Only)
Gross, B.L., Henk, A.D., Forsline, P.L., Richards, C.M., Volk, G.M. 2012. Interspecific hybridization among domesticated apple and its wild relatives. Meeting Abstract. Available: https://pag.confex.com/pag/xx/webprogram/Paper3193.html.
Genetic diversity and biogeographic determinants of population structure in Araucaria angustifolia Bert. O Ktze. - (Abstract Only) - (18-Nov-11)
Geographic patterns of genetic variation and population structure in Pinus aristata, Rocky Mountain bristlecone pine - (Peer Reviewed Journal) - (12-Oct-11)
Population structure and conservation of wild Pyrus communis Reprint Icon - (Abstract Only)
Volk, G.M., Richards, C.M., Cruz, V.V., Bassil, N.V., Postman, J.D. 2011. Population structure and conservation of wild Pyrus communis [meeting abstract]. In: Proceedings of American Society for Horticultural Science Annual Conference, September 25-28, 2011, Waikoloa, Hawaii. Available: http://ashs.confex com/ashs/2011/ webprogram/Paper7477.html.
Integration of georeferencing, habitat, sampling, and genetic data for documentation of wild plant genetic resources - (Peer Reviewed Journal)
Volk, G.M., Richards, C.M. 2011. Integration of georeferencing, habitat, sampling, and genetic data for documentation of wild plant genetic resources. HortScience. 46(11): 1446-1449.
Horticultural value of wild genetic resources: introduction to the workshop - (Peer Reviewed Journal)
Volk, G.M., Richards, C.M. 2011. Horticultural value of wild genetic resources: introduction to the workshop. HortScience. 46(11): 1436-1437.
Genetic variation in historical and modern apple cultivars compared to wild relatives - (Abstract Only)
Gross, B.L., Volk, G.M., Richards, C.M., Forsline, P.L. 2011. Genetic variation in historical and modern apple cultivars compared to wild relatives [meeting abstract]. In: Proceedings of the International Pland and Animal Genome XIX Conference, January 15-19, 2011, San Diego, California. p. 150.
Genetic diversity of diploid Japanese strawberry species based on microsatellite markers Reprint Icon - (Peer Reviewed Journal)
Njuguna, W., Hummer, K.E., Richards, C.M., Davis, T.M., Bassil, N.V. 2011. Genetic diversity of diploid Japanese strawberry species based on microsatellite markers. Genetic Resources and Crop Evolution. http://www.springerlink.com/content/c404m461448gp6r3. 58:1187-1198.
Diversity and Domestication of Apples - (Abstract Only)
Volk, G.M., Richards, C.M., Forsline, P.L. 2010. Diversity and Domestication of Apples. Meeting Abstract. 5th International Rosaceae Genomics Conference, November 14-17, 2010. South Africa. pp. O51.
Phylogenetic relationships among Maloideae species - (Government Publication)
Volk, G.M., Richards, C.M., Baldo, A.M. 2010. Phylogenetic relationships among Maloideae species. Meeting Abstract. 5th International Rosaceae Genomics Conference, November 14-17, 2010. South Africa. pp. O52.
Duplication in the Domestica Apple Collection within the USDA-ARS National Plant Germplasm System in Geneva, New York - (Abstract Only)
Volk, G.M., Gross, B.L., Richards, C.M., Szwec-Mcfadden, A., Forsline, P.L., Fazio, G. 2010. Duplication in the Domestica Apple Collection within the USDA-ARS National Plant Germplasm System in Geneva, New York. Meeting Abstract. 5th International Rosaceae Genomics Conference, November 14-17, 2010. South Africa. pp. P53.
Species delimitation under the general lineage concept: An empirical example using wild North American hops (cannabaceae: Humulus lupulus) - (Peer Reviewed Journal)
Reeves, P.A., Richards, C.M. 2011. Species delimitation under the general lineage concept: An empirical example using wild North American hops (cannabaceae: Humulus lupulus). Systematic Biology. 60:45-59.
Modeling demographics and genetics in ex situ collections during seed storage and regeneration - (Peer Reviewed Journal)
Richards, C.M., Lockwood, D.R., Volk, G.M., Walters, C.T. 2010. Modeling demographics and genetics in ex situ collections during seed storage and regeneration. Crop Science. 50:2440-2447.
Diversity in wild apple species of Chinese origin - (Abstract Only)
Volk, G.M., Henk, A.D., Richards, C.M., Baldo, A.M., Forsline, P.L. 2010. Diversity in wild apple species of Chinese origin. Meeting Abstract. American Society for Horticultural Science annual conference, Palm Desert, CA August 2-5, 2010.
Apple Diversity - (Book / Chapter) - (08-Mar-10)
New Challenges for Data Managment in Genebanks - (Peer Reviewed Journal)
Richards, C.M., Volk, G.M. 2010. New Challenges for Data Managment in Genebanks. Acta Horticulturae. 859:333-336.
A comprehensive approach toward conserving Malus germplasm - (Peer Reviewed Journal)
Volk, G.M., Richards, C.M., Forsline, P.L. 2010. A comprehensive approach toward conserving Malus germplasm. Acta Horticulturae. 859:177-182.
Diversity and the role of genebanks in the age of genomics - (Abstract Only)
Richards, C.M. and Volk, G.M. 2009. Diversity and the role of genebanks in the age of genomics. Molecular Markers in Horticulture Symposium. July 29-August 1, 2009 Corvallis, OR. pp. 39. Meeting Abstract.
A Comprehensive Approach Toward Conserving Malus Germplasm - (Abstract Only)
Volk, G.M., Richards, C.M., Forsline, P.L. 2009. A comprehensive approach toward conserving Malus germplasm. Molecular Markers in Horticulture Symposium. July 29-August 1, 2009 Corvallis, OR. pp. 7. Meeting Abstract.
Capturing The Diversity Of Wild Malus Orientalis From Georgia, Armenia, Russia And Turkey - (Peer Reviewed Journal)
Volk, G.M., Richards, C.M., Henk, A.D., Reilley, A.A., Reeves, P.A., Forsline, P.L., Aldwinckle, H.S. 2009. Capturing The Diversity Of Wild Malus Orientalis From Georgia, Armenia, Russia And Turkey. Journal of the American Society for Horticultural Science. 134:453-459.
Diversity and the Role of Genebanks in the Age of Genomics - (Abstract Only)
Richards, C.M., Volk, G.M. 2009. Diversity and the Role of Genebanks in the Age of Genomics. Meeting Abstract. Molecular Markers in Horticulture, ISHS, Covalis OR July 30-August 1, 2009. Abstract OP36 pg.39
Population Structure and History in Developing Core Sets in Wild Germplasm - (Abstract Only)
Richards, C.M., Volk, G.M., Reeves, P.A. 2009. Population Structure and History in Developing Core Sets in Wild Germplasm. Plant and Animal Genome Conference Proceedings. Volume W008. January 10-14, 2009 San Diego California
Microsatellite characterization of subspecies and their hybrids in Culex pipiens complex mosquitoes along a north-south transect in the central United States of America - (Peer Reviewed Journal)
Kothera, L., Zimmerman, E.M., Richards, C.M., Savage, H.M. 2009.Microsatellite characterization of subspecies and their hybrids in Culex pipiens complex mosquitoes along a north-south transect in the central United States of America. Journal of Medical Entomology 46:236-248.
Selection of stratified core sets representing wild apple (Malus sieversii) - (Peer Reviewed Journal)
Richards, C.M., Volk, G.M., Reeves, P.A., Reilley, A., Henk, A.D., Forsline, P.L., Aldwinckle, H. 2009. Selection of stratified core sets representing wild apple (Malus sieversii). Journal of the American Society for Horticultural Science. 134:228-235.
Accurate inference of subtle population structure (and other genetic discontinuities) using principal coordinates - (Peer Reviewed Journal)
Reeves, P.A., Richards, C.M. 2009. Accurate inference of subtle population structure (and other genetic discontinuities) using principal coordinates. Plos one. 4(1) e4269.
Novel diversity identified in a wild apple population from Kyrgyz Republic - (Peer Reviewed Journal)
Volk, G.M., Richards, C.M., Henk, A.D., Reilley, A., Miller, D.D., Forsline, P.L. 2009. Novel diversity identified in a wild apple population from Kyrgyz Republic. HortScience 44:516-519.
Population Structure And History In Developing Core Sets In Wild Germplasm. - (Abstract Only)
Richards, C.M., Volk, G.M., and P.A. Reeves. 2009. Population Structure and history in developing core sets in wild germplasm. Plant & Animal Genome XVII Conference. Annual Conference. January 10-14, 2009. San Diego, CA. pp. W008. Meeting Abstract.
Genetic diversity and population structure in Malus sieversii, a wild progenitor species of domesticated apple. - (Peer Reviewed Journal)
Richards C.M., G. Volk, A.A. Reilley, A.D. Henk, D. Lockwood, P.A. Reeves, and P.L. Forsline. 2009. Genetic diversity and population structure in Malus sieversii, a wild progenitor species of domesticated apple. Tree Genetics and Genomics 5:339-347.
Diversity of wild Malus germplasm available in the USDA-ARS National Plant Germplasm System - (Abstract Only)
Volk, G.M., C.M. Richards, Aldwinckle, H.2008. Diversity of wild Malus germplasm available in the USDA-ARS National Plant Germplasm System. American Society for Horticultural Science. Annual Conference. July 21-24, 2008. Orlando, FL. 43:1136. Meeting Abstract.
The influence of large scale genomics and the changing role of ex situ collections - (Abstract Only)
Richards, C.M. 2008. The influence of large scale genomics and the changing role of ex situ collections. Annual meeting for the American Botanical Society, Vancouver, British Columbia, Canada. July 27, 2008. Meeting Abstract.
Expansion of the USDA-ARS Germplasm Resources Information Network (GRIN) database to accommodate molecular data - (Abstract Only)
Volk, G.M., Richards C.M., Bohning M.A., Sinnott Q.P. 2008. Expansion of the USDA-ARS Germplasm Resources Information Network (GRIN) database to accommodate molecular data. American Society for Horticultural Science. Annual Conference. July 21-24. Orlando, Florida 43:1205-1206. Meeting Abstract.
Genebanks in the post-genomic age: emerging roles and anticipated uses - (Peer Reviewed Journal)
Walters, C.T., Volk, G.M., Richards, C.M. 2008. Genebanks in the post-genomic age: emerging roles and anticipated uses. Biodiversity Issues 9:68-71.
Population Genetics in ex situ Conservation - (Proceedings)
RRichards, C.M. 2008. Population Genetics in ex situ Conservation. Leibnitz Institute of Plant Genetic and Crop Research (IPK). April 23, 2008,Gatersleben, Germany. Meeting Abstract.
Availability of genotypic data for USDA-ARS National Plant Germplasm System accessions using the Genetic Resources Information Network (GRIN) database - (Peer Reviewed Journal)
Volk, G.M., Richards, C.M. 2008. Availability of genotypic data for USDA-ARS National Plant Germplasm System accessions using the Genetic Resources Information Network (GRIN) database. HortScience 43:1365-1366.
Assessment of the genetic diversity and disease resistance of wild Malus orientalis seedlings from Turkey and Southern Russia - (Abstract Only)
Volk, G.M., C.M. Richards P. Forsline and H. Aldwinckle. 2008. Assessment of the genetic diversity and disease resistance of wild Malus orientalis seedlings from Turkey and Southern Russia. Rosaceae Genomics Conference. Annual Conference. March 16-19, 2008. Pucon, Chile. pp. 85. Meeting Abstract.
Genetic diversity and disease resistance of wild Malus orientalis from Turkey and southern Russia - (Peer Reviewed Journal)
Volk, G.M., Richards, C.M., Reilley, A., Henk, A.D., Reeves, P.A., Forsline, P.L., Aldwinckle, H. 2008. Genetic diversity and disease resistance of wild Malus orientalis from Turkey and southern Russia. Journal of the American Society for Horticultural Science 133:383-389.
Genetic diversity of wild Malus orientalis - (Abstract Only)
Volk, G.M., Richards, C.M., Henk, A.D., Reilley, A., Reeves, P.A., Forsline, P.L. 2007. Genetic diversity of wild Malus orientalis. Plant & Animal Genome XVI Conference. Annual Conference. January 12-16, 2008. San Diego, CA. pp. 137. Meeting Abstract.
Genetic Diversity of Japanese Strawberry Species Based on Microsatellite Markers - (Abstract Only)
Njuguna, W., Bassil, N.V., Hummer, K.E., Richards, C.M., Davis, T. 2009. Genetic Diversity of Japanese Strawberry Species Based on Microsatellite Markers. Acta Horticulturae. 842:581-584.
Progress in evaluating Malus sieversii for Disease-Resistance and Horticultural Traits - (Proceedings)
Fazio, G., Forsline, P.L., Aldwinckle, H., Volk, G.M., Richards, C.M., Janisiewicz, W.J. 2009. Progress in evaluating Malus sieversii for Disease-Resistance and Horticultural Traits. ISHS 2009. Acta Hort. 814:59-66.
Genetic Diversity of the Malus sieversii Collection in the USDA-ARS National Plant Germplasm System - (Abstract Only)
Volk, G.M., Richards, C.M., Henk, A.D., Reilley, A., Forsline, P.L. 2007. Genetic Diversity of the Malus sieversii Collection in the USDA-ARS National Plant Germplasm System. Meeting Abstract HortScience. July 16-19, 2007, Scottsdale, Arazona. 44:895.
Evolutionary conservation of the FLC mediated vernalization response - (Abstract Only)
Richards, C.M., Reeves, P.A., He, Y., Schmitz, R.J., Amasino, R.M., Panella, L.W. 2007. Evolutionary conservation of the FLC mediated vernalization response. Meeting Abstract for the Plant and Animal Genome XV conference. January 13-17, 2007, San Diego, California. pp. 129.
Virus induced gene silencing of a gene repressing flowering in sugar beet. - (Abstract Only)
Fenwick, A., Larson, R.L., Reeves, P.A., Richards, C.M., Panella, L.W. 2007. Virus induced gene silencing of a gene repressing flowering in sugar beet. American Society of Sugarbeet Technologists.
Evolutionary Conservation of the Flowering Locus C-Mediated Vernalization Response: Evidence From the Sugar Beet (Beta vulgaris) - (Peer Reviewed Journal)
Reeves, P.A., Yuehui, H., Schmitz, R.J., Amasino, R.M., Panella, L.W., Richards, C.M. 2006. Evolutionary Conservation of the Flowering Locus C-Mediated Vernalization Response: Evidence From the Sugar Beet (Beta vulgaris). Genetics 176: 295-307 (May 2007) DOI: 10.1534/genetics.106.069336.
Genetic Relationships Between Feral Cattle from Chirikof Island, Alaska, and Other Breeds Reprint Icon - (Peer Reviewed Journal)
MacNeil, M.D., Cronin, M.A., Blackburn, H.D., Richards, C.M., Lockwood, D.R., Kantanen, J., Alexander, L.J. 2007. Genetic relationships between feral cattle from Chirikof Island, Alaska, and other breeds. Animal Genetics 38:193-197.
Genetic diversity and structure in the rare Colorado endemic plant Physaria bellii Mulligan (Brassicaceae) - (Peer Reviewed Journal)
Kothera, L., Richards, C.M., Carney, S.E. 2007. Genetic diversity and structure in the rare Colorado endemic plant Physaria bellii Mulligan (Brassicaceae). Conservation Genetics 8:1043-1050.
Genetic diversity assessment of wild Malus sieversii populations in Kazakhstan - (Abstract Only)
Volk, G.M., C.M. Richards, A. Henk, A. Reilley and P. Forsline. 2007. Genetic diversity assessment of wild Malus sieversii populations in Kazakhstan. Meeting Abstract for the Plant and Animal Genome Conference. January 13-18, 2007, San Diego, California. pp. 133.
Probabilistic Models for Collecting Genetic Diversity: Comparisons, Caveats and Limitations - (Peer Reviewed Journal)
Lockwood, D., Richards, C.M., Volk, G.M. Probabilistic models for collecting genetic diversity: comparisons, caveats and limitations. Crop Science 47:859-866.
Distinguishing Terminal Monophyletic Groups from Hybrid Taxa: Performance of Cladistic and Phenetic Procedures - (Peer Reviewed Journal)
Reeves, P.A., Richards, C.M. 2007. Distinguishing terminal monophyletic groups from hybrid taxa: performance of cladistic and phenetic procedures. Systematic Biology 56:302-320.
Genetic Diversity of Wild Pyrus Communis L. - (Abstract Only)
Volk, G.M., Richards, C.M., Henk, A.D., Reilley, A., Bassil, N.V., Postman, J.D. 2006. Genetic diversity of wild pyrus communis l. American Society of Horticulture Science Meeting. July 26-29, 2006, New Orleans, Louisiana. 41: 1035. Meeting Abstract.
Capturing genetic diversity of wild populations for ex situ conservation: Texas wild rice (Zizania texana) as a model Reprint Icon - (Peer Reviewed Journal)
Richards, C.M., Antolin, M.F., Reilley, A., Poole, J., Walters, C.T. Capturing genetic diversity of wild populations for ex situ conservation: Texas wild rice (Zizania texana) as a model. Genetic Resources and Crop Evolution 54:837-848.
The Utility of Aged Seeds in DNA Banks - (Peer Reviewed Journal)
Walters, C., A.A. Reilley, P.A. Reeves, J. Baszczak, and C.M. Richards. 2006. The utility of aged seeds in DNA banks. Seed Science Research 16:169-178.
Characterization of Wild Malus Populations Using Genotypic and Phenotypic Traits - (Abstract Only)
Volk, G.M., Richards, C.M., Forsline, P.L. 2006. Characterization of wild malus populations using genotypic and phenotypic traits. Meeting Abstract. 3rd International Rosaceae Genomics Conference. Pg. 34.
Characterization of Wild Malus Populations Using Genotypic and Phenotypic Traits - (Abstract Only)
Volk, G.M., C.M. Richards and P.L. Forsline. 2005. Characterization of wild malus populations using genotypic and phenotypic traits. 3rd International Rosaceae Genomics Conference. March 19-22, 2006, Napier, New Zealand. p. 34. Meeting Abstract.
Wild Plant Sampling Strategies: the Roles of Ecology and Evolution - (Review Article)
Lockwood, D.R., C.M. Richards and G.M. Volk. 2007. Wild plant sampling strategies: the roles of ecology and evolution. Plant Breeding Reviews 29:285-313.
Diversity of Wild Pyrus Communis Based on Microsatellite Analyses - (Peer Reviewed Journal)
Volk, G.M., Richards, C.M., Henk, A.D., Reilley, A., Bassil, N.V., Postman, J.D. 2006. Diversity of wild pyrus communis based on microsatellite analyses. Journal of the American Society for Horticultural Science. Vol. 131:408-417.
Patterns of Molecular and Quantitative Trait Variation in Malus Sieversii from Kazakhstan - (Abstract Only)
Richards, C.M., Henk, A.D., Reilley, A., Forsline, P.L., Volk, G.M. 2006. Patterns of molecular and quantitative trait variation in Malus sieversii from kazakhstan. Meeting Proceedings of the Plant and Animal Genome XIV, January 13-18, 2006, San Diego, CA.
Usda-Csrees-Nri Projects Developing Genomic Resources for the Rosaceae (Malus) - (Abstract Only)
Norelli, J.L., Korban, S., Volk, G.M., Zeng, Z., Aldwinckle, H., Bassett, C.L., Beever, J., Farrell, R., Gasic, K., Richards, C.M. 2006. USDA-CSREES-NRI projects developing genomic resources for the rosaceae (malus). Meeting Proceedings of the Plant and Animal Genome XIV, January 13-18, 2006, San Diego, CA. p. 37.
Relative Effects of Nocturnal Vs Diurnal Pollinators and Distance on Gene Flow in Small Silene Alba Populations - (Peer Reviewed Journal)
Barthelmess, E.L., Richards, C.M., McCauley, D.E. 2005. Relative effects of nocturnal vs diurnal pollinators and distance on gene flow in small silene alba populations. New Phytologist 169:689-698
Population and Ecological Genetics in Restoration Ecology - (Book / Chapter)
Falk, D., C. Richards, A. Montalvo, E. Knapp. 2006. Population and ecological genetics in restoration ecology. pp. 14-41. In D. Falk, M. Palmer and J.Zedler (eds) Foundations of Restoration Biology. Island Press, Washington, D.C.
Ex Situ Conservation of Vegetatively-Propagated Species: Development of a Seed-Based Core Collection for Malus Sieversii - (Peer Reviewed Journal)
Volk, G.M., A. Reilley, A.D. Henk, P.L. Forsline, H.S. Aldwinckle, and C.M. Richards. 2005. Ex situ conservation of vegetatively-propagated species: development of a seed-based core collection for Malus sieversii. Journal of the American Society of Horticultural Science. 130:203-210.
Molecular Technologies for the Management and Use of Gene Bank Collections - (Research Notes)
Richards, C.M. 2004. Molecular technologies for the management and use of gene bank collections. In M.C. de Vicente (ed.) The Evolving Role of Genebanks in the Fast-Developing Field of Molecular Genetics. Issues in Genetic Resources 11:13-18. International Plant Genetic Resources Institute. Rome, Italy.
Wolfpac: Building a High-Performance Distributed Computing Network for Phylogenetic Analysis Using "obsolete" Computational Resources - (Peer Reviewed Journal)
Reeves, P.A., Friedman, P.H., Richards, C.M. 2005. Wolfpac: Building a high-preformance distributed computing network for phylogenetic analysis using "obsolete" computational resources. Applied Bioinformatics 4:61-64.
Microsatellite Primers for Texas Wild Rice and a Preliminary Test of the Impact of Cryogenic Storage on Allele Frequency at These Loci. - (Peer Reviewed Journal)
Richards C.M., A. Reilley, D.H. Touchell, M.F. Antolin and C. Walters. Microsatellite primers for Texas wild rice (Zizania texana), and a preliminary test of the impact of cryogenic storage on allele frequency at these loci. Conservation Genetics 5:853-859.
How Many Garlics Are There? - (Trade Journal)
Volk, G.M., A.D. Henk and C.M. Richards. 2004. How many garlics are there? The Garlic Press 44:5-8.
Genetic Diversity among Us Garlic Clones As Detected Using Aflp Methods - (Peer Reviewed Journal)
Volk, G.M., A.D. Henk and C.M. Richards. 2004. Genetic Diversity among US garlic clones as detected using AFLP methods. Journal of the American Society for Horticultural Science 129(4):559-569.
Polymorphic Microsatellite Markers for Inferring Diversity in Wild and Domesticated Sugar Beet (Beta Vulgaris) - (Peer Reviewed Journal)
Richards, C.M., M. Brownson, S. Mitchell, S. Kresovich and L. Panella. 2004. Polymorphic microsatellite markers for inferring diversity in wild and domesticated sugar beet (Beta vulgaris). Molecular Ecology Notes 4:243-245.
Genetic Structure and Patterns of Selection in Natural Populations of Beta Vulgaris Ssp. Maritima. - (Abstract Only)
Richards, C.M., Reeves, P.A., Fenwick, A.L., Panella, L.W. 2004. Genetic structure and patterns of selection in natural populations of beta vulgaris ssp. maritima.. Plant and Animal Genome XI Conference. San Diego, California. pp.136.
Diversity of Garlic Accessions Within the National Plant Germplasm System - (Abstract Only)
Volk, G.M., Henk, A.D., Richards, C.M. 2003. Diversity of garlic accessions within the national plant germplasm system. HortScience. 2003. 38:736.
Genetic and Demographic Dynamics of Small Populations of Silene Alba - (Peer Reviewed Journal)
RICHARDS, C.M., EMERY, S.N., MCCAULEY, D.E. GENETIC AND DEMOGRAPHIC DYNAMICS OF SMALL POPULATIONS OF SILENE ALBA. HEREDITY. 2003. v.90.p.181-186.
Maintenance of Genetic Variability in a Cryopreserved Population of Zizania Texana Embryos - (Abstract Only)
Richards, C.M., M. Antolin, and C. Walters. 2002. Maintenance of genetic variability in a cryopreserved population of Zizana texana embryos. 39th Meeting of the Society for Cryobiology, July 28-31, 2002, Breckenridge, Colorado. p. 145.
Genetic Variability among Accessions of Garlic in the USDA National Plant Germplasm System - (Abstract Only)
VOLK, G.M., HENK, A.D., RICHARDS, C.M. GENETIC VARIABILITY AMONG ACCESSIONS OF GARLIC IN THE USDA NATIONAL PLANT GERMPLASM SYSTEM. American Society of Plant Biologists. 2002. Pp25.
Sugar Beet Microsatellites - (Abstract Only)
Panella, L.W., Brownson, M.P., Richards, C.M., Mitchell, S.E., Kresovich, S. 2002. Sugar beet microsatellites . Plant Animal and Microbe Genomes Conference.
ARS News Articles
Last Modified: 9/10/2014
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