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ARS Home » Plains Area » Fargo, North Dakota » Edward T. Schafer Agricultural Research Center » Weed and Insect Biology Research » People & Locations » Arun Rajamohan
Arun Rajamohan
Weed and Insect Biology Research
Research Biologist

Phone: (701) 239-1249
Fax:

(Employee information on this page comes from the REE Directory. Please contact your front office staff to update the REE Directory.)

Projects
Enhancing Pollinator Health and Availability Through Conservation of Genetic Diversity and Development of Novel Management Tools and Strategies
In-House Appropriated (D)
  Accession Number: 437657
Overwintering Physiology of Insect Pollinators and Pests
Non-Assistance Cooperative Agreement (S)
  Accession Number: 444604
Cryopreservation of Shrimp Germplasm
Non-Assistance Cooperative Agreement (S)
  Accession Number: 440205
Cryopreservation of Anopheles Mosquitoes
Trust Fund Cooperative Agreement (T)
  Accession Number: 440125

Publications (Clicking on the reprint icon Reprint Icon will take you to the publication reprint.)
Diapause, pollen ball incidence, and overwintering energetics in the alfalfa leafcutting bee, Megachile rotundata - (Peer Reviewed Journal)
Monarch butterfly conservation through male germplasm cryopreservation Reprint Icon - (Peer Reviewed Journal)
Grula, C.C., Rajamohan, A., Rinehart, J.P. 2024. Monarch butterfly conservation through male germplasm cryopreservation. Science. https://doi.org/10.1038/s41598-024-65624-x.
Development of a degree-day model for adult emergence of the red sunflower seed weevil, Smicronyx fulvus LeConte (Coleoptera: Curculionidae) Reprint Icon - (Peer Reviewed Journal)
Pantzke, S., Rajamohan, A., Ferguson, B., Rinehart, J.P., Prischmann-Voldseth, D.A., Prasifka, J.R. 2024. Development of a degree-day model for adult emergence of the red sunflower seed weevil, Smicronyx fulvus LeConte (Coleoptera: Curculionidae). Journal of Kansas Entomological Society. 97(1):26-38.
Thermal biology and overwintering behavior of the red sunflower seed weevil (Coleoptera: Curculionidae) - (Peer Reviewed Journal)
Pantzke, S., Ferguson, B., Rajamohan, A., Rinehart, J.P., Prischmann-Voldseth, D., Prasifka, J.R. 2023. Thermal biology and overwintering behavior of the red sunflower seed weevil (Coleoptera: Curculionidae). Environmental Entomology. https://doi.org/10.1093/ee/nvad041.
Sperm can't take the heat: Short-term temperature exposures compromise fertility of male bumble bees (Bombus impatiens) Reprint Icon - (Peer Reviewed Journal)
Campion, C., Rajamohan, A., Dillon, M. 2023. Sperm can't take the heat: Short-term temperature exposures compromise fertility of male bumble bees (Bombus impatiens). Journal of Insect Physiology. 146(2023). Article 104491. https://doi.org/10.1016/j.jinsphys.2023.104491.
Vitrification of lepidopteran embryos - a simple protocol to cryopreserve the embryos of the sunflower moth, Homoeosoma electellum Reprint Icon - (Peer Reviewed Journal)
Rajamohan, A., Prasifka, J.R., Rinehart, J.P. 2022. Vitrification of lepidopteran embryos - a simple protocol to cryopreserve the embryos of the sunflower moth, Homoeosoma electellum. Insects. 13(10). Article 959. https://doi.org/10.3390/insects13100959.
Vitrification of manually stage selected embryos of Drosophila melanogaster have significantly higher survival and adult emergence Reprint Icon - (Peer Reviewed Journal)
Debardlabon, K.M., Rajamohan, A., Rinehart, J.P. 2022. Vitrification of manually stage selected embryos of Drosophila melanogaster have significantly higher survival and adult emergence. Journal of Cryobiology. 105:83-87. https://doi.org/10.1016/j.cryobiol.2022.01.002.
Section 6: Collection and cryopreservation of germplasm and tissues Reprint Icon - (Book / Chapter)
Blesbois, E., Purdy, P.H., Santiago Moreno, J., Liptói, K., Rajamohan, A., De Souza-Fabjan, J., Somfai, T., Parnpai, R., McGrew, M.J., Mermillod, P., Bailey, J. 2023. Section 6: Collection and cryopreservation of germplasm and tissues. In: Boes, J., Boettcher, P., Honkatukia, M., editors. Innovations in Cryoconservation of Animal Genetic Resources - Practical Guide. FAO Animal and Health Guidelines, No. 33. Rome, Italy. p. 105-157. https://doi.org/10.4060/cc3078en.
Comparative analysis of cryopreservation of seminal vesicle derived spermatozoa from Bombus impatiens and Apis mellifera - Implications for artificial insemination of bumble bees Reprint Icon - (Peer Reviewed Journal)
Campion, C.C., Rajamohan, A., Rinehart, J.P. 2021. Comparative analysis of cryopreservation of seminal vesicle derived spermatozoa from Bombus impatiens and Apis mellifera - Implications for artificial insemination of bumble bees. Journal of Cryobiology. 102:136-139. https://doi.org/10.1016/j.cryobiol.2021.06.002.
Section 3: Choice of biological material to be preserved Reprint Icon - (Book / Chapter)
Purdy, P.H., Blesbois, E., Santiago Moreno, J., Parnpai, R., Smits, K., Somfai, T., Liptói, K., Rajamohan, A., McGrew, M.J., Roelen, B., Várkonyi, E.P., Loi, P., Paiva, S.R., Lessard, C., Zhao, X., Blackburn, H.D., Woelders, H., Bailey, J. 2023. Section 3: Choice of biological material to be preserved. In: Boes, J., Boettcher, P., Honkatukia, M., editors. Innovations in Cryoconservation of Animal Genetic Resources - Practical Guide. FAO Animal and Health Guidelines, No. 33. Rome, Italy. p. 41-68. https://doi.org/10.4060/cc3078en.
Comparison of fluctuating thermal regimes and commercially achievable constant-temperature regimes for short-term storage of the alfalfa leafcutting bee (Hymenoptera: Megachilidae) Reprint Icon - (Peer Reviewed Journal)
Yocum, G.D., Rajamohan, A., Rinehart, J.P. 2021. Comparison of fluctuating thermal regimes and commercially achievable constant-temperature regimes for short-term storage of the alfalfa leafcutting bee (Hymenoptera: Megachilidae). Journal of Economic Entomology. https://doi.org/10.1093/jee/toab019.
Physiological responses to cryoprotectant treatment in an early larval stage of the malaria mosquito, Anopheles gambiae Reprint Icon - (Peer Reviewed Journal)
Campbell, J.B., Dosch, A., Hunt, C.M., Dotson, E.M., Benedict, M.Q., Rajamohan, A., Rinehart, J.P. 2021. Physiological responses to cryoprotectant treatment in an early larval stage of the malaria mosquito, Anopheles gambiae. Journal of Cryobiology. https://doi.org/10.1016/j.cryobiol.2020.12.001.
A non-activating diluent to prolong in vitro viability of Apis mellifera spermatozoa: Effects on cryopreservation and on egg fertilization Reprint Icon - (Peer Reviewed Journal)
Rajamohan, A., Danka, R.G., Hopkins, B.K., Rinehart, J.P. 2020. A non-activating diluent to prolong in vitro viability of Apis mellifera spermatozoa: Effects on cryopreservation and on egg fertilization. Journal of Cryobiology. 92:124-129. https://doi.org/10.1016/j.cryobiol.2019.11.045.
Generalized linear mixed model approach to time-to-event data with censored observations - (Proceedings)
Yeater, K.M., Yocum, G.D., Rinehart, J.P., Rajamohan, A., Bowsher, J., Greenlee, K. 2019. Generalized linear mixed model approach to time-to-event data with censored observations. In: Proceedings of the Southeast SAS Users Group Conference, October 20-22, 2019. Williamsburg, Virginia.
Thermoprofile parameters affect survival of Megachile rotundata during exposure to low-temperatures Reprint Icon - (Peer Reviewed Journal)
Yocum, G.D., Rinehart, J.P., Rajamohan, A., Bowsher, J.H., Yeater, K.M., Greenlee, K.J. 2019. Thermoprofile parameters affect survival of Megachile rotundata during exposure to low-temperatures. Integrative & Comparative Biology. 59(4):1089-1102. https://doi.org/10.1093/icb/icz126.
Genotoxicity assessment of agrochemicals on honey bee spermatozoa using the TUNEL assay [abstract] - (Abstract Only)
Campion, C., North, H.A., Rajamohan, A., Bowsher, J.H. 2019. Genotoxicity assessment of agrochemicals on honey bee spermatozoa using the TUNEL assay [abstract]. 2019 International Pollinator Conference, July 17-20, 2019, Davis, CA. p. 16.
The impact of thiamethoxam on drone navigation and behavior [abstract] - (Abstract Only)
North, H.A., Campion, C., Rajamohan, A., Bowsher, J.H. 2019. The impact of thiamethoxam on drone navigation and behavior [abstract]. 2019 International Pollinator Conference, July 17-20, 2019, Davis, CA. p. 32.
Improved spring low-temperature storage of Megachile rotundata - (Abstract Only)
Yocum, G.D., Rajamohan, A., Bowsher, J.H., Greenlee, K.J. 2019. Improved spring low-temperature storage of Megachile rotundata [abstract]. 2019 International Pollinator Conference, July 17-20, 2019, Davis, CA. p. 42.
Environmental history impacts gene expression during diapause development in the alfalfa leafcutting bee, Megachile rotundata Reprint Icon - (Peer Reviewed Journal)
Yocum, G.D., Childers, A.K., Rinehart, J.P., Rajamohan, A., Pitts Singer, T., Greenlee, K.J., Bowsher, J.H. 2018. Environmental history impacts gene expression during diapause development in the alfalfa leafcutting bee, Megachile rotundata. Journal of Experimental Biology. 221:jeb173443. https://doi.org/10.1242/jeb.173443.
Effect of cryopreservation on the pre-hatching behavior in the Mexican fruit fly Anastrepha ludens Loew (Diptera, Tephritidae) - (Peer Reviewed Journal)
Rajamohan, A., Rinehart, J.P., Leopold, R.A. 2018. Effect of cryopreservation on the pre-hatching behavior in the Mexican fruit fly Anastrepha ludens Loew (Diptera, Tephritidae). Cryobiology. 80:38-42. https://doi.org/10.1016/j.cryobiol.2017.12.007.
Toxicity assessment of glyphosate on honey bee (Apis mellifera) spermatozoa - (Abstract Only)
Hoopman, A., North, H., Rajamohan, A., Bowsher, J. 2018. Toxicity assessment of glyphosate on honey bee (Apis mellifera) spermatozoa [abstract]. The Society for Integrative & Comparative Biology (SCIB) Annual Meeting 2018. January 3-7, 2018. San Francisco, CA. P2-21.
The geometric framework for nutrition reveals interactions between protein and carbohydrate during larval growth in honey bees - (Peer Reviewed Journal)
Helm, B.R., Slater, G.P., Rajamohan, A., Yocum, G.D., Greenlee, K.J., Bowsher, J.H. 2017. The geometric framework for nutrition reveals interactions between protein and carbohydrate during larval growth in honey bees. Biology Open. 6(6):872-880. doi:10.1242/bio.022582.
Diapause in the alfalfa leafcutting bee, Megachile rotundata: Environmental history impact on gene expression - (Abstract Only)
Yocum, G.D., Childers, A.K., Rajamohan, A., Rinehart, J.P., Pitts Singer, T., Greenlee, K.J., Bowsher, J.H. 2017. Diapause in the alfalfa leafcutting bee, Megachile rotundata: Environmental history impact on gene expression [abstract]. Proceedings of the XXV International Plant and Animal Genome, January 14-18, 2017, San Diego, CA. Poster # P0196.
Cryopreservation of embryos of the Mediterranean fruit fly Ceratitis capitata Vienna 8 Genetic Sexing Strain Reprint Icon - (Peer Reviewed Journal)
Augustinos, A., Rajamohan, A., Kyritsis, G., Zacharopoulou, A., Haq, I., Targovska, A., Caceres, C., Bourtzis, K., Abd-Alla, A.M. 2016. Cryopreservation of embryos of the Mediterranean fruit fly Ceratitis capitata Vienna 8 Genetic Sexing Strain. PLoS One. 11(8):e0160232. Available: http://dx.doi.org/10.1371/journal.pone.0160232.
Long term storage of bee semen – A six month assessment of cryopreserved semen quality using motility as an index - (Abstract Only)
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