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Agricultural Research Service United States Department of Agriculture
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George D Yocum
Insect Genetics and Biochemistry Research
Research Physiologist (Insects)

Phone: (701) 239-1301
Fax: (701) 239-1348
1605 ALBRECHT BLVD
BRL
BIOSCIENCES RESEARCH LABORATORY
FARGO, ND, 58105-5674

Projects
Insect Genomic Biodiversity and Molecular Regulation of Diapause
Appropriated (D)
  Accession Number: 409590
Characterization of Diapause, Cold Tolerance and Diversity in Pest and Beneficial Insects Using Physiological and Molecular Methods
Specific Cooperative Agreement (S)
  Accession Number: 409908
Expression of Chilling Damage Through Maternal Inheritance in a Parasitic Wasp
Specific Cooperative Agreement (S)
  Accession Number: 418057

Publications
Variable Temperatures Improves Survival of the Alfalfa Leafcutting Bee During Cold Storage - (Abstract)
Yocum, G.D., Rinehart, J.P., Kemp, W.P. 2010. Variable Temperatures Improves Survival of the Alfalfa Leafcutting Bee During Cold Storage. Meeting Poster. 41st Annual Winter Seed Conference. January 17-19, 2010. Las Vegas, NV.
Interrupted Incubation and Short-Term Storage of the Alfalfa Pollinator, Megachile rotundata (Hymenoptera: Megachilidae): A Potential Tool for Synchronizing Bees With Bloom - (Peer Reviewed Journal) - (09-Dec-09)
Synchronizing Bees With Bloom: Interrupted Incubation and Short-Term Storage of the Alfalfa Pollinator, Megachile rotundata (Hymenoptera: Megachilidae) - (Abstract)
Yocum, G.D., Rinehart, J.P., Kemp, W.P. 2009. Synchronizing Bees With Bloom: Interrupted Incubation and Short-Term Storage of the Alfalfa Pollinator, Megachile rotundata (Hymenoptera: Megachilidae) [abstract]. Entomological Society of America Annual Meeting. Poster No. D0153.
Down Regulation of Gene Expression Between the Diapause Initiation and Maintenance Phases of the Colorado Potato Beetle, Leptinotarsa Decemlineata - (Peer Reviewed Journal)
Yocum, G.D., Rinehart, J.P., Larson, M.L. 2009. Down Regulation of Gene Expression Between the Diapause Initiation and Maintenance Phases of the Colorado Potato Beetle, Leptinotarsa decemlineata (Coleoptera: Chrysomelidae). European Journal of Entomology. 106(4):471-476.
Synchronizing the Alfalfa Seed Production Pollinator, Megachile rotundata (F.), with Peak Bloom: Effects of Water Balance - (Abstract)
Rinehart, J.P., Yocum, G.D., Kemp, W.P. 2009. Synchronizing the Alfalfa Seed Production Pollinator, Megachile rotundata (F.), with Peak Bloom: Effects of Water Balance [abstract]. Entomological Society of America Annual Meeting. Poster No. D0152.
Supercooling Point Plasticity During Cold Storage in the Freeze-tolerant Sugarbeet Root Maggot Tetanops myopaeformis - (Peer Reviewed Journal)
Rinehart, J.P., Yocum, G.D., Chirumamilla-Chapara, A., Boetel, M.A. 2009. Supercooling Point Plasticity During Cold Storage in the Freeze-Tolerant Sugarbeet Root Maggot Tetanops myopaeformis. Physiological Entomology. 34(3):224-230.
Characterization of gene expression patterns during the initiation and maintenance phases of diapause in the Colorado potato beetle, Leptinotarsa decemlineata - (Peer Reviewed Journal)
Yocum, G.D., Rinehart, J.P., Chirumamilla, A., Larson, M.L. 2009. Characterization of Gene Expression Patterns During the Initiation and Maintenance Phases of Diapause in the Colorado Potato Beetle, Leptinotarsa decemlineata. Journal of Insect Physiology. 55(1):32-39.
Putative regulatory elements within the non-coding regions of Chrysomelidae Diapause Associated Transcript-1 (DAT-1) orthologs - (Abstract)
Toutges, M.J., Yocum, G.D., Roehrdanz, R.L. 2008. Putative regulatory elements within the non-coding regions of Chrysomelidae Diapause Associated Transcript-1 (DAT-1) orthologs. [Abstract]. Entomological Society of America Annual Meeting. Poster # D0177, p. 106.
Cold storage of the northern house mosquito, Culex pipiens, in the absence of diapause - (Abstract)
Rinehart, J.P., Yocum, G.D., Robich, R.M. 2008. Cold storage of the northern house mosquito, Culex pipiens, in the absence of diapause. [Abstract].Entomological Society of America Annual Meeting. Poster #D0181, p. 107.
Short-term low temperature storage of alfalfa leafcutting bee - (Abstract)
Yocum, G.D., Rinehart, J.P., Kemp, W.P. 2008. Short-term low temperature storage of alfalfa leafcutting bee. [Abstract]. Entomological Society of America Annual Meeting. Poster # D0812, p. 107.
Isolation of diapause-regulated transcripts by differential display from the Colorado potato beetle, and their expression in prediapausing and nondiapausing adults. GenBank. Accessions: FG591137-FG591192 - (Other)
Yocum, G.D., Rinehart, J.P., Chirumamilla, A., Larson, M.L. 2008. Isolation of diapause-regulated transcripts by differential display from the Colorado potato beetle, and their expression in prediapausing and nondiapausing adults. GenBank. Accessions: FG591137-FG591192.
Multi-year survival of sugarbeet root maggot (Tetanops myopaeformis) larvae in cold storage - (Peer Reviewed Journal)
Chirumamilla, A., Yocum, G.D., Boetel, M.A., Dregseth, R.J. 2008. Multi-year survival of sugarbeet root maggot (Tetanops myopaeformis) larvae in cold storage. Journal of Insect Physiology. 54(4):691-699.
Isolation and characterization of storage lipids in sugarbeet root maggot larvae - (Abstract)
Chirumamilla-Chapara, A., Boetel, M.A., Yocum, G.D., Buckner, J.S. 2007. Isolation and characterization of storage lipids in sugarbeet root maggot larvae [abstract]. Entomological Society of America Annual Meeting. Paper No. D0048.
Multiple competent analysis of prediapause and early diapause in the Colorado potato beetle - (Abstract)
Yocum, G.D., Rinehart, J.P., Buckner, J.S., Fatland, C.L., Chirumamilla, A. 2007. Multiple competent analysis of prediapause and early diapause in the Colorado potato beetle [abstract]. Annual Entomological Society of Ammerica Meeting. Paper No. D0261.
Moving diapause biomarkers from the laboratory to the field: Will they make it? - (Abstract)
Yocum, G.D. 2007. Moving diapause biomarkers from the laboratory to the field: Will they make it?. Proceedings of International Congress of Insect Biotechnology and Industry. Entomological Research 37(Suppl. 1):A18.
Multi-year survival of sugarbeet root maggot larvae, Tetanops myopaeformis in cold storage - (Other)
Chirumamilla, A., Yocum, G.D., Boetel, M.A., Buckner, J.S., Dregseth, R.J. 2007. Multi-year survival of sugarbeet root maggot larvae, Tetanops myopaeformis in cold storage. Genbank. Accession numbers: EV413916 to EV413927.
Upregulation of Heat Shock Proteins is Essential for Cold Survival during Insect Diapause - (Peer Reviewed Journal)
Rinehart, J.P., Aiqing, L., Yocum, G.D., Robich, R.M., Hayward, S.A., Denlinger, D.L. 2007. Upregulation of Heat Shock Proteins is Essential for Cold Survival during Insect Diapause. Proceedings of the National Academy of Sciences. 104(27):11130-11137.
Isolation and characterization of a novel family (Mild-4) of miniature subterminal inverted repeat transposable element from the Colorado potato beetle, Leptinotarsa decemlineata - (Other)
Yocum, G.D. 2006. Isolation and characterization of a novel family (Mild-4) of miniature subterminal inverted repeat transposable element from the Colorado potato beetle, Leptinotarsa decemlineata. Genbank. Accession number EF121856.
Respirometry Differential Gene Expression and Histological Studies on Sugarbeet Root Maggot Larvae in Long-Term Storage - (Abstract)
Chirumamilla, A., Yocum, G.D., Boetel, M.A. 2006. Respirometry differential gene expression and histological studies on sugarbeet root maggot larvae in long-term storage [abstract]. Entomological Society of America. Paper No. D0150. p. 81.
Differential Gene Expression and Respiration Rates During the Prediapause Phase of the Colorado Potato Beetle, Leptinotarsa Decemlineata - (Abstract)
Yocum, G.D., Rinehart, J.P., Chirumamilla, A. 2006. Differential gene expression and respiration rates during the prediapause phase of the Colorado potato beetle, Leptinotarsa decemlineata [abstract]. Entomological Society of America. Paper No. D0429. p. 128.
Thermal History Influences Diapause Development in the Solitary Bee Megachile Rotundata - (Peer Reviewed Journal)
Yocum, G.D., Kemp, W.P., Bosch, J., Knoblett, J.N. 2006. Thermal history influences diapause development in the solitary bee Megachile rotundata. Journal of Insect Physiology. 52(11-12):1113-1120.
Nutrigenomics: a Case Study in the Measurement of Insect Response to Nutritional Quality - (Peer Reviewed Journal)
Coudron, T.A., Yocum, G.D., Brandt, S.L. 2006. Nutrigenomics: a case study in the measurement of insect response to nutritional quality. Entomologia Experimentalis et Applicata. 121:1-14.
Changes in Respiratory Quotient and Gene Expression in Megachile Rotundata Prepupae During the Transition from Diapause to Postdiapause at a Constant 4°c - (Abstract)
Yocum, G.D., Kemp, W.P., Bosch, J., Knoblett, J.N. 2006. Changes in respiratory quotient and gene expression in Megachile rotundata prepupae during the transition from diapause to postdiapause at a constant 4 deg. C. [abstract]. 5th International Symposium on Molecular Insect Science. p. 93.
A Remarkable Case of Longevity in Sugarbeet Root Maggot Larvae: Is Diapause the Key? - (Abstract)
Chirumamilla, A., Boetel, M.A., Yocum, G.D., Dregseth, R.J. 2006. A remarkable case of longevity in sugarbeet root maggot larvae: Is diapause the key?. [abstract]. Entomological Society of America, North Central Branch Meeting. p. 25.
Differential Gene Expression in Perillus Bioculatus Nymphs Fed a Suboptimal Artificial Diet - (Peer Reviewed Journal)
Yocum, G.D., Coudron, T.A., Brandt, S.L. 2006. Differential gene expression in Perillus bioculatus nymphs fed a suboptimal artificial diet. Journal of Insect Physiology. 52(6):586-592.
Diet Development for Predatory Pentatomidae Using a Nutrigenomics Approach - (Abstract)
Yocum, G.D., Coudron, T.A., Brandt, S.L. 2005. Diet development for predatory pentatomidae using a nutrigenomics approach [abstract]. Annual Meeting of the Entomological Society of America. p. 36.
Induction of Differential Gene Expression in Perillus Bioculatus Nymphs Fed a Suboptimal Artificial Diet - (Other)
Yocum, G.D., Coudron, T.A., Brandt, S.L. 2005. Induction of differential gene expression in perillus bioculatus nymphs fed a suboptimal artificial diet. Genbank. Accession numbers DR730531 to DR730536.
Genomic Structure of Leptinotarsa Decemlineata Dat-3 Gene and Promoter Region - (Other)
Yocum, G.D. 2005. Genomic structure of Leptinotarsa decemlineata dat-3 gene and promoter region. Genbank. Accession number: DQ011146.
Isolation and Characterization of a Truncated Member (Mild-1c) of the Miniature Inverted-Repeat Transposable Element Family Mild-1 from the Colorado Potato Beetle, Leptinotarsa Decemlineata. - (Other)
Yocum, G.D. 2005. Isolation and characterization of a truncated member (mild-1c) of the miniature inverted-repeat transposable element family mild-1 from the colorado potato beetle, Leptinotarsa decemlineata. Genbank. Accession number: DQ011147.
Isolation and Characterization of a Truncated Members of the Miniature Inverted-Repeat Transposable Element Families Mild-1 and 2 from the Colorado Potato Beetle, Leptinotarsa Decemlineata. - (Other)
Yocum, G.D. 2005. Isolation and characterization of a truncated members of the miniature inverted-repeat transposable element families mild-1 and 2 from the colorado potato beetle, Leptinotarsa decemlineata. Genbank. Accession number: DQ011148.
Isolation and Characterization of a Novel Family (Mild-3) of Miniature Inverted-Repeat Transposable Elements in the Colorado Potato Beetle, Leptinotarsa Decemlineata. - (Other)
Yocum, G.D. 2005. Isolation and characterization of a novel family (mild-3) of miniature inverted-repeat transposable elements in the Colorado potato beetle, Leptinotarsa decemlineata. Genbank. Accession number: DQ011149.
Differential Gene Expression in Mexican Fruit Flies after Cryopreservation. - (Abstract)
Rajamohan, A., Yocum, G.D., Leopold, R.A. 2005. Differential gene expression in Mexican fruit flies after cryopreservation [abstract]. Cryobiology. 51(3):406.
Effects of Constant and Cyclic Stepwise-Increasing Temperatures on Parasitized and Unparasitzed Eggs of the Glassy-Winged Sharpshooter, Homalodisca Coagulata, During Cold Storage - (Proceedings/Symposium)
Leopold, R.A., Chen, W., Yocum, G.D. 2004. Effects of using constant and cyclical stepwise-increasing temperatures on parasitized and unparasitzed eggs of the glassy-winged sharpshooter during cold storage. In: Proceedings of the CDFA Pierce's Disease Control Program Research Symposium, December 7-10, 2004, Coronado, California. p. 124-127.
Nutrigenomics of the Predatory Pentatomid Perillus Bioculatus - (Abstract)
Yocum, G.D., Coudron, T.A. 2004. Nutrigenomics of the predatory pentatomid Perillus bioculatus [abstract]. Entomological Society of America. Paper No. D0239.
Host Selection and Low Temperature Storage of the Glassy-Winged Sharpshooter, Homalodisca Coagulata - (Abstract)
Leopold, R.A., Yocum, G.D., Morgan, D.W., Chen, W., Lauziere, I. 2004. Host selection and low temperature storage of the glassy-winged sharpshooter, homalodisca coagulata [abstract]. CDFA Pierce's Disease Control Program Research Symposium. pp. 90-92.
Temporal Variation in Overwintering Gene Expression and Respiration in the Solitary Bee Megachile Rotundata - (Peer Reviewed Journal)
Yocum, G.D., Kemp, W.P., Bosch, J., Knoblett, J.N. 2005. Temporal variation in overwintering gene expression and respiration in the solitary bee Megachile rotundata. Journal of Insect Physiology. 51(6):621-629.
Environmental Regulation of the Purine Synthesis Enzyme Purh Transcript During Adult Diapause in Leptinotarsa Decemlineata (Coleoptera: Chrysomelidae) - (Peer Reviewed Journal)
Yocum, G.D. 2004. Environmental regulation of the purine synthesis enzyme purH transcript during adult diapause in Leptinotarsa decemlineata (Coleoptera: Chrysomelidae). European Journal of Entomology. 101(2):199-203.
Hormonal Control of Diapause - (Book/Chapter)
Denlinger, D.L., Yocum, G.D., Rinehart, J.P. 2004. Hormonal control of diapause. In: Gilbert, L.I., Iatrou, K., Gill, S.S., editors. Comprehensive Molecular Insect Science. Amsterdam: Elsevier. Vol. 7, p. 615-650.
Downregulation of the Purine Synthesis Enzyme Purh During Adult Diapause in the Colorado Potato Beetle, Leptinotarsa Decemlineata - (Other)
Yocum, G.D. 2003. Downregulation of the purine synthesis enzyme purh during adult diapause in the Colorado potato beetle, Leptinotarsa decemlineata. GenBank. Accession number AY357301.
What Can Genomics and the Other "-Omics" Contribute to Arthropod Mass Rearing and Quality Control? - (Abstract)
Coudron, T.A., Yocum, G.D. 2003. What can genomics and the other "-omics" contribute to arthropod mass rearing and quality control? [abstract]. Arthropod Mass Rearing and Quality Control Workshop. p. 18
Using Nutrition-Based Differential Gene Expression to Optimize Diets - (Abstract)
COUDRON, T.A., YOCUM, G.D., BRANDT, S.L. Using Nutrition-Based Differential Gene Expression to Optimize Diets. UNIVERSITY OF MISSOURI LIFE SCIENCES WEEK. 2003. Available from: http://lsrdb.missouri.edu/cgi-bin/searchsortlsrdb.cgi
Isolation and Characterization of Three Diapause Associated Transcripts from the Colorado Potato Beetle, Leptinotarsa Decemlineata - (Peer Reviewed Journal)
YOCUM, G.D. ISOLATION AND CHARACTERIZATION OF THREE DIAPAUSE ASSOCIATED TRANSCRIPTS FROM THE COLORADO POTATO BEETLE, LEPTINOTARSA DECEMLINEATA. JOURNAL OF INSECT PHYSIOLOGY. 49(2):161-169. 2003.
Diapause Regulated Gene Expression and Respiration in Field Collected Overwintering Alfalfa Leafcutting Bees, Megachile Rotundata. - (Other)
Yocum, G.D., Kemp, W.P. 2004. Diapause regulated gene expression and respiration in field collected overwintering alfalfa leafcutting bees, Megachile rotundata. Genbank. Accession nos. AY550115-AY550118.
Isolation and Characterization of Diapause Associated Transcripts-1, 2 and 3 from the Potato Pest, Leptinotarsa Decemlineata - (Other)
Yocum, G.D. 2003. Isolation and characterization of diapause associated transcripts-1, 2 and 3 from the potato pest, Leptinotarsa decemlineata. Genbank. Accession nos. AF532862-AF532864.
A Short-Term Auxiliary Diet for the Predaceous Stink Bug Perillus Bioculatus (Hemiptera: Pentatomidae) - (Peer Reviewed Journal)
YOCUM, G.D., EVENSON, P.L. A SHORT-TERM AUXILIARY DIET FOR THE PREDACEOUS STINK BUG PERILLUS BIOCULATUS (HEMIPTERA: PENTATOMIDAE). FLORIDA ENTOMOLOGIST. 2002. 85:567-571.
Using Microarray Technology to Optimize Artificial Diets for Beneficial Insects - (Abstract) - (17-Jul-02)
Cloning of Three Desiccation Regulated Transcripts from Diapausing Colorado Potato Beetle, Leptinotarsa Decemlineata - (Abstract) - (27-Mar-02)

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Last Modified: 02/09/2010
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