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United States Department of Agriculture

Agricultural Research Service

Related Topics

Pia Untalan Olafson
Tick and Biting Fly Research
Research Molecular Biologist

Phone: (830) 792-0322
Fax: (830) 792-0314
2700 FREDERICKSBURG ROAD
KERRVILLE, TX, 78028

Projects
BIOLOGY AND CONTROL OF TICKS OF VETERINARY AND HUMAN IMPORTANCE
Appropriated (D)
  Accession Number: 418521
MOLECULAR BIOLOGY AND PHYSIOLOGY OF BITING FLIES AFFECTING LIVESTOCK
Appropriated (D)
  Accession Number: 418533
Horn Fly Antennal and Midgut Transcriptome Analysis
Specific Cooperative Agreement (S)
  Accession Number: 426918

Publications (Clicking on the reprint icon Reprint Icon will take you to the publication reprint.)
Survival and fate of Salmonella enterica serovar Montevideo in adult Horn Flies (Diptera: Muscidae) - (Peer Reviewed Journal)
Olafson, P.U., Lohmeyer, K.H., Edrington, T.S., Loneragan, G.H. 2014. Survival and fate of Salmonella enterica serovar Montevideo in adult Horn Flies (Diptera: Muscidae). Journal of Medical Entomology. 51(5):993-1001.
Expression of bovine genes associated with a local and systemic immune response to infestation by the Lone Star tick, Amblyomma americanum - (Peer Reviewed Journal)
Brannon, J.L., Riggs, P.K., Olafson, P.U., Ivanov, I., Holman, P.J. 2014. Expression of bovine genes associated with a local and systemic immune response to infestation by the Lone Star tick, Amblyomma americanum. Ticks and Tick Borne Diseases. 5:676-688.
Widespread Movement of Invasive Cattle Fever Ticks (Rhipicephalus microplus) in Southern Texas Leads to Shared Local Infestations on Cattle and Deer - (Peer Reviewed Journal)
Busch, J.D., Stone, N.E., Nottingham, R., Araya-Anchetta, A., Lewis, J., Hochhalter, C., Giles, J.R., Freeman, J.M., Buckmeier, B.G., Bodine, D.L., Duhaime, R.A., Miller, R., Davey, R.B., Olafson, P.U., Scoles, G.A., Wagner, D.M. 2014. Widespread Movement of Invasive Cattle Fever Ticks (Rhipicephalus microplus) in Southern Texas Leads to Shared Local Infestations on Cattle and Deer. Parasites & Vectors. 7:188.
Invasive Potential of Cattle Fever Ticks in the Southern United States - (Peer Reviewed Journal)
Giles, J.R., Peterson, A.T., Busch, J.D., Olafson, P.U., Scoles, G.A., Davey, R.B., Pound, J.M., Kammlah, D.M., Lohmeyer, K.H., Wagner, D.M. 2014. Invasive Potential of Cattle Fever Ticks in the Southern United States. Parasites & Vectors. 7:189.
Spatiotemporal Incidence of Acaracide Resistance among Outbreaks of Cattle Fever Ticks in the US - (Abstract Only) - (30-May-13)
Discovery of microRNAs of the stable fly (Diptera: Muscidae) by high-throughput sequencing - (Peer Reviewed Journal)
Tuckow, A.P., Temeyer, K.B., Olafson, P.U., Perez De Leon, A.A. 2013. Discovery of microRNAs of the stable fly (Diptera: Muscidae) by high-throughput sequencing. Journal of Medical Entomology. 50(4):925-930.
Acetylcholinesterase of Rhipicephalus (Boophilus) microplus and Phlebotomus papatasi: Gene identification, expression, and biochemical properties of recombinant proteins - (Peer Reviewed Journal)
Temeyer, K.B., Olafson, P.U., Brake, D.K., Tuckow, A.P., Li, A.Y., Perez De Leon, A.A. 2013. Acetylcholinesterase of Rhipicephalus (Boophilus) microplus and Phlebotomus papatasi: Gene identification, expression, and biochemical properties of recombinant proteins. Pesticide Biochemistry and Physiology. 106:118-123.
Molecular Characterization and Immunolocalization of the Olfactory Co-recepter Orco from Two Blood-feeding Muscid Flies, the Stable Fly (Stomoxys calcitrans, L.) and the Horn Fly (Haematobia irritans irritans, L.) - (Peer Reviewed Journal)
Olafson, P.U. 2013. Molecular characterization and immunolocalization of the olfactory co-recepter orco from two blood-feeding muscid flies, the stable fly (Stomoxys calcitrans, L.) and the horn fly (Haematobia irritans irritans, L.). Insect Molecular Biology. 22(2):131-142.
USDA-ARS Knipling-Bushland U.S. Livestock Insects Research Laboratory Tick & Biting Fly Research Unit Scientific Update - (Other) - (12-Sep-12)
Evaluations of methods for the isolation of high quality RNA from bovine and cervine hide biopsies for use in gene expression studies - (Peer Reviewed Journal) - (19-Jul-12)
Ticks on Deer and Cattle in the Cattle Fever Tick Permanent Quarantine Zone, 2012 - (Abstract Only) - (25-Jun-12)
Discovery and functional analysis of small RNAs (miRNA/siRNA) of livestock ectoparasites. - (Abstract Only) - (11-Jun-12)
Excluding feral swine, javelina and raccoons from deer bait stations - (Abstract Only) - (05-Apr-12)
Acetylcholinesterases of Rhipicephalus (Boophilus) microplus and Phlebotomus papatasi: Gene identification, expression and biochemical properties of recombinant proteins - (Abstract Only) - (19-Mar-12)
Sequence polymorphism in acetylcholinesterase transcripts and genotyping survey of BmAChE1 in laboratory and Mexican strains of Rhipicephalus (Boophilus) microplus - (Peer Reviewed Journal)
Temeyer, K.B., Olafson, P.U., Pruett, J.H. 2012. Sequence polymorphism in acetylcholinesterase transcripts and genotyping survey of BmAChE1 in laboratory and Mexican strains of Rhipicephalus (Boophilus) microplus. Journal of Medical Entomology. 49(3):555-562.
Analysis of doramectin in the serum of repeatedly treated pastured cattle used to predict the probability of cattle fever ticks (Acari: Ixodidae) feeding to repletion - (Peer Reviewed Journal)
Davey, R.B., Pound, J.M., Klavons, J.A., Lohmeyer, K.H., Freeman, J.M., Olafson, P.U. 2012. Analysis of doramectin in the serum of repeatedly treated pastured cattle used to predict the probability of cattle fever ticks (Acari: Ixodidae) feeding to repletion. Experimental and Applied Acarology. 56(4):365-374.
Excluding feral swine, javelina, and raccoons from deer bait stations - (Peer Reviewed Journal)
Pound, J.M., Lohmeyer, K.H., Davey, R.B., Soliz, L.A., Olafson, P.U. 2012. Excluding feral swine, javelina, and raccoons from deer bait stations. Human-Wildlife Interactions. 36:383-385.
Multiple acetylcholinesterase genes expressed in the southern cattle tick, Rhipicephalus (Boophilus) microplus, a vector of bovine babesiosis and anaplasmosis - (Abstract Only) - (14-Nov-11)
Multiple acetylcholinesterase genes expressed in the southern cattle tick, Rhipicephalus (Boophilus) microplus, a vector of bovine anaplasmosis and babesiosis - (Abstract Only) - (27-Oct-11)
Genetic factors potentially reducing fitness cost of organophosphate-insensitive acetylcholinesterase(s) in Rhipicephalus (Boophilus) microplus (Acari: Ixodidae) - (Peer Reviewed Journal)
Temeyer, K.B., Tijerina, M.A., Davey, R.B., Olafson, P.U. 2011. Genetic factors potentially reducing fitness cost of organophosphate-insensitive acetylcholinesterase(s) in Rhipicephalus (Boophilus) microplus (Acari: Ixodidae). Acarology International Congress Proceedings. Zoosymposia 6:260–266.
Immunological response of tick-naive white-tailed deer to infestation with Dermacentor albipictus, a one host tick - (Abstract Only) - (11-Jun-11)
Impact of white-tailed deer and exotic ungulate populations on cattle fever tick outbreaks in South Texas - (Abstract Only) - (11-Jun-11)
Overview of the U.S. Cattle Fever Tick Eradication Program: History and Challenges - (Abstract Only) - (11-Jun-11)
Novel techniques developed to control cattle fever ticks feeding on free-ranging white-tailed deer along the Rio Grande in South Texas - (Abstract Only) - (11-Jun-11)
Preliminary findings of a molecular survey for the presence of B. bovis and B. bigemina in cattle fever ticks and white-tailed deer from south Texas - (Abstract Only) - (16-May-11)
Are white-tailed deer compromising efforts to maintain eradication of cattle fever ticks from cattle herds in the U.S.? - (Abstract Only) - (13-May-11)
Identification of a mutation associated with permethrin resistance in the para-type sodium channel of the stable fly (Diptera: Muscidae) - (Peer Reviewed Journal)
Olafson, P.U., Pitzer, J.B., Kaufman, P.E. 2011. Identification of a mutation associated with permethrin resistance in the para-type sodium channel of the stable fly (Diptera: Muscidae). Journal of Economic Entomology. 104(1):250-257.
Bm86 midgut protein sequence variation in south Texas cattle fever ticks - (Peer Reviewed Journal)
Freeman, J.M., Davey, R.B., Kappmeyer, L.S., Kammlah, D.M., Olafson, P.U. 2010. Bm86 midgut protein sequence variation in south Texas cattle fever ticks. Parasites & Vectors. 3;3:101.
Novel approaches for control of Rhipicephalus (Boophilus) microplus - (Peer Reviewed Journal)
Temeyer, K.B., Chen, A.C., Davey, R.B., Guerrero, F., Freeman, J.M., Kammlah, D.M., Li, A.Y., Lohmeyer, K.H., Olafson, P.U., Perez De Leon, A.A., Phillips, P.L., Pound, J.M., Welch, J.B. 2012. Novel approaches for control of Rhipicephalus (Boophilus) microplus. J Tecnica Pecuaria En Mexico. 3(Suppl. 1):25-40.
Four transcripts encode glucose 6-phosphate dehydrogenase (G6PDH) in the Southern cattle tick, Rhipicephalus (Boophilus) microplus - (Peer Reviewed Journal) - (16-Jul-10)
Multiple transcripts encode glucose 6-phosphate dehydrogenase in the southern cattle tick, Rhipicephalus (Boophilus) microplus - (Peer Reviewed Journal)
Olafson, P.U., Pruett Jr, J.H., Temeyer, K.B. 2011. Multiple transcripts encode glucose 6-phosphate dehydrogenase in the southern cattle tick, Rhipicephalus (Boophilus) microplus. Experimental and Applied Acarology. 53(2):147-165.
Insight into stable fly larvae: Salivary gland-specific polypeptides and evidence for genes that may have a role in the stable fly innate immune system - (Proceedings) - (02-Jul-10)
Analysis of expressed sequence tags from a significant livestock pest, the stable fly (Stomoxys calcitrans), identifies transcripts with a putative role in chemosensation and sex-determination - (Peer Reviewed Journal)
Olafson, P.U., Dowd, S.E., Lohmeyer, K.H. 2010. Analysis of expressed sequence tags from a significant livestock pest, the stable fly (Stomoxys calcitrans), identifies transcripts with a putative role in chemosensation and sex-determination. Archives of Insect Biochemistry and Physiology. 74(3):179-2004.
Baculovirus expression, biochemical characterization and organophosphate sensitivity of rBmAChE1, rBmAChE2, and rBmAChE3 of Rhipicephalus (Boophilus) microplus - (Peer Reviewed Journal)
Temeyer, K.B., Pruett Jr, J.H., Olafson, P.U. 2010. Baculovirus expression, biochemical characterization and organophosphate sensitivity of rBmAChE1, rBmAChE2, and rBmAChE3 of Rhipicephalus (Boophilus) microplus. Veterinary Parasitology. 172:114-121.
Sequence variation of Bm86 in cattle fever ticks isolated from outbreaks in south Texas - (Proceedings) - (20-Jan-10)
Genotyping mutation in BmAChE3: A survey of laboratory and Mexican strains of Rhipicephalus (Boophilus) microplus that are resistant or susceptible to coumaphos - (Peer Reviewed Journal)
Temeyer, K.B., Olafson, P.U., Miller, R. 2009. Genotyping mutation in BmAChE3: A survey of laboratory and Mexican strains of Rhipicephalus (Boophilus) microplus that are resistant or susceptible to coumaphos. Journal of Medical Entomology. 46(6):1355-1360.
Serologically defined Rhipicephalus (Boophilus) microplus larval antigens in BmLF3, a partially pure Sephacryl S-300 fraction of crude larval proteins - (Peer Reviewed Journal)
Pruett Jr, J.H., Olafson, P.U., Davey, R.B. 2008. Serologically defined Rhipicephalus (Boophilus) microplus larval antigens in BmLF3, a partially pure Sephacryl S-300 fraction of crude larval proteins. Veterinary Parasitology. 155(3-4):264-272.
Acetylcholinesterase Mutation in Diazinon-Resistant Haematobia Irritans (L.) (Diptera: Muscidae) - (Peer Reviewed Journal)
Temeyer, K.B., Li, A.Y., Lohmeyer, K.H., Chen, A.C., Olafson, P.U., Sanson, D.W., Foil, L.D. 2008. Acetylcholinesterase mutation in diazinon-resistant Haematobia irritans (L.) (Diptera: Muscidae). Veterinary Parasitology. 154(3-4):300-310.
R86q, a Mutation in Bmache3 Yielding a Rhipicephalus Microplus Organophosphate-Insensitive Acetylcholinesterase - (Peer Reviewed Journal)
Temeyer, K.B., Pruett Jr, J.H., Olafson, P.U., Chen, A.C. 2007. R86Q, a mutation in BmAChE3 yielding a Rhipicephalus microplus organophosphate-insensitive acetylcholinesterase. Journal of Medical Entomology. 44(6):1013-1018.
Association of the bovine leukocyte antigen major histocompatibility complex class II DRB3*4401 allele with host resistance to the Lone Star Tick, Amblyomma americanum - (Peer Reviewed Journal)
Olafson, P.U., Pruett Jr, J.H., Steelman, C.D. 2007. Association of the bovine leukocyte antigen major histocompatibility complex class II DRB3*4401 allele with host resistance to the Lone Star Tick, Amblyomma americanum. Veterinary Parasitology. 145(1-2):190-195.
Thrombostasin isoform frequency in a Central Texas field population of the horn fly, Haematobia irritans - (Peer Reviewed Journal)
Olafson, P.U., Pruett Jr, J.H., Atteberry, H.N., Steelman, C.D. 2006. Thrombostasin isoform frequency in a Central Texas field population of the horn fly, Haematobia irritans. Veterinary Parasitology. 142:359-366.
Identification and Partial Purification of Serologically Defined Boophilus Microplus Larval Antigens by Natural Ectoparasite Exposure - (Peer Reviewed Journal)
Pruett Jr., J.H., Untalan, P.M., Davey, R.B. 2006. Identification and partial purification of serologically defined Boophilus microplus larval antigens by natural ectoparasite exposure. Veterinary Parasitology. 140:148-157.
Baculovirus Expression of Bmache3, a Cdna Encoding An Acetylcholinesterase of Boophilus Microplus (Acari:ixodidae) - (Peer Reviewed Journal)
Temeyer, K.B., Pruett Jr., J.H., Untalan, P.M., Chen, A.C. 2006. Baculovirus expression of BmAChE3, a cDNA encoding an acetylcholinesterase of Boophilus microplus (Acari: Ixodidae). Journal of Medical Entomology. 43(4):707-712.
The Resistance of Varroa Mites (Acari: Varroidae) to Acaricides and the Presence of Esterase - (Peer Reviewed Journal)
Sammataro, D., Untalan, P., Guerro, F., Finley, J. The resistance of Varroa mites (Acari: Varroidae) to acaricides and the presence of esterase. 2005. Internat. J. Acarol. Vol. 31, No. 1. 67-74.
Proteome Analysis of Abundantly Expressed Proteins from Unfed Larvae of the Cattle Tick, Boophilus Microplus - (Peer Reviewed Journal)
Untalan, P.M., Guerrero, F.D., Haines, L.R., Pearson, T.W. 2005. Proteome analysis of abundantly expressed proteins from unfed larvae of the cattle tick, Boophilus microplus. Insect Biochemistry and Molecular Biology. 35:141-151.
Organophosphate Resistance in Mexican Strains of Boophilus Microplus: a Major Threat to the U.S. Cattle Industry - (Peer Reviewed Journal)
Temeyer, K.B., Pound, J.M., Miller, J.A., Chen, A.C., Pruett Jr, J.H., Guerrero, F., Davey, R.B., Untalan, P.M., Lohmeyer, K.H., Li, A.Y., Miller, R., George, J.E. 2004. Organophosphate resistance in Mexican strains of Boophilus microplus: A major threat to the U.S. cattle industry. Southern Association of Agricultural Scientists Bulletin of Biochemistry and Biotechnology. 17:43-51.
Membrane Proteins Induced by Organophosphate Exposure in Op-Susceptible and -Resistant Strains of the Southern Cattle Tick - (Proceedings)
GUERRERO, F., LI, A.Y., UNTALAN, P.M. 2003 APRIL 8-11. MEMBRANE PROTEINS INDUCED BY ORGANOPHOSPHATE EXPOSURE IN OP-SUSCEPTIBLE AND -RESISTANT STRAINS OF THE SOUTHERN CATTLE TICK. PRESENTED AT THE 78TH ANNUAL MEETING OF THE SOUTHWESTERN AND ROCKY MOUNTAIN (SWARM) DIVISION OF THE AMERICAN ASSOCIATION FOR THE ADVANCEMENT OF SCIENCE (AAAS). TULSA, OKLAHOMA.
Last Modified: 9/20/2014
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