*indicates student authors, underlining indicates StFX student authors
Pre-prints
Watch this space 🙂
In Press
28. Lopez Pedersen, J.*, Burton, L.S.*, Rodela, T.M. and Toxopeus, J. (In Press) The cold tolerance of an adult winter-active stonefly: How Allocapnia pygmaea (Plecoptera: Capniidae) avoids freezing in Nova Scotia, Canada. The Canadian Entomologist. (Pre-print of an open access pre-publication version available via bioRχiv, 2025.08.05.668668.)
2025
27. Pichaud, N., Menail, H.A., Ojukwu, K.C.*, Morin, P.Jr. and Toxopeus, J. (2025) Fall-like acclimation alters mitochondrial function and substrate use in freeze-tolerant crickets. Journal of Thermal Biology, 132: 104253.
26. Rokosh, S.E.*, Adams, V.E.*, Walter, R.*, Kaiser, G.E.*, Gough, A.L.* and Toxopeus, J. (2025) Tissue- and temperature-dependent expression, enzyme activity, and RNAi knockdown of Catalase in a freeze-tolerant insect. Journal of Insect Physiology. 163: 104809. (Pre-print of an open access pre-publication version available via bioRχiv, 2025.02.12.637938.)
25. van Oirschot, M.L.* and Toxopeus, J. (2025) Freeze-tolerant crickets fortify their actin cytoskeleton in fat body tissue. Journal of Experimental Biology. 228: jeb.249947. (Pre-print of an open access pre-publication version available via bioRχiv, 2024.11.22.624896.) **Featured in the Journal of Experimental Biology’s ECR Spotlight series.**
24. Adams, V.E.*, van Oirschot, M.L.* and Toxopeus, J. (2025) HSP70 is upregulated after heat but not freezing stress in the freeze-tolerant cricket Gryllus veletis. Comparative Biochemistry and Physiology A. 300: 111791. (Pre-print of an open access pre-publication version available via bioRχiv, 2024.10.30.621172.)
23. Adams, V.E.*, Chettiar, S.R.*, Clow, T.M.*, Gendron, E.*, Gough, A.L.*, Stewart, B.E.M.*, Cameron, E.K. and Toxopeus, J. (2025) Invasive adult jumping worms in Atlantic Canada are chill-susceptible. Biological Invasions. 27: 5. (Pre-print of an open access pre-publication version available via bioRχiv, 2024.05.02.592186.)
2024
22. Lebenzon, J.E. and Toxopeus, J. (2024) Knock down to level up: Reframing RNAi for invertebrate ecophysiology. Comparative Biochemistry and Physiology A. 297: 111703.
21. Lemay, K.*, Moore, M.*, Brown, P.*, Gadey, L., Ragland, G.J. and Toxopeus, J. (2024) Conserved cold tolerance of Rhagoletis species from different host fruits, elevations in Colorado, USA. Physiological Entomology. 49: 216-226. (Pre-print of an open access pre-publication version available via bioRχiv, 2023.12.22.573084)
20. Toxopeus, J., Dowle, E.J., Andaloori, L.* and Ragland, G.J. (2024) Variation in thermal sensitivity of diapause development among individuals and over time predicts life history timing patterns in a univoltine insect. The American Naturalist. 203: E200-E217. (Pre-print of an open access pre-publication version available via bioRχiv, 2023.05.31.543112.)
2023
19. McIntyre, T.*, Andaloori, L.*, Hood, G.R., Feder, J.L., Hahn, D.A., Ragland, G.J. and Toxopeus, J. (2023) Cold tolerance and diapause within and across trophic levels: endoparasitic wasps and their fly host have similar phenotypes. Journal of Insect Physiology, 146: 104501. (Pre-print of an open access pre-publication version available via bioRχiv, 10.1101/2023.01.04.522725.)
2022
18. Freda, P.J., Toxopeus, J., Dowle, E.J., Ali, Z.M., Heter, N., Collier, R.L., Sower, I.*, Tucker, J.C.*, Morgan, T.J. and Ragland, G.J. (2022) Transcriptomic and functional genetic evidence for distinct ecophysiological responses across complex life cycle stages. Journal of Experimental Biology, 225: jeb.244063. **Featured in Inside JEB, which highlights key developments in the Journal of Experimental Biology, and short-listed as a finalist for the JEB Outstanding Paper Prize of 2022.**
2021
17. Toxopeus, J., Gadey, L., Andaloori, L.*, Sanaei, M.* and Ragland, G. (2021) Costs of averting or prematurely terminating diapause associated with slow decline of metabolic rates at low temperature. Comparative Biochemistry and Physiology A, 255: 110920.
16. Lebenzon, J.E., Toxopeus, J., Anthony, S.E. and Sinclair, B.J. (2021) De novo assembly and characterisation of the transcriptome of the Beringian pseudoscorpion. The Canadian Entomologist, 153: 301-313.
2020
15. Li, N.G., Toxopeus, J., Moos, M, Sørensen, J.G. and Sinclair, B.J. (2020) A comparison of low temperature biology of Pieris rapae from Ontario, Canada, and Yakutia, Far Eastern Russia. Comparative Biochemistry and Physiology A, 242: 110649.
2019
14. Rozsypal, J., Toxopeus, J., Berková, P., Moos, M., Šimek, P. and Koštál, V. (2019) Fat body disintegration after freezing stress is a consequence rather than cause of freezing injury in larvae of Drosophila melanogaster. Journal of Insect Physiology, 115: 12-19.
13. Toxopeus, J., KoÅ¡tál, V. and Sinclair, B.J. (2019) Evidence for non-colligative function of small cryoprotectants in a freeze tolerant insect. Proceedings of the Royal Society B, 286: 20190050. **Featured twice on CBC Radio (on “Fresh Air” and “All in a Day”), recommended in F1000Prime
12. Toxopeus, J., Des Marteaux, L.E. and Sinclair, B.J. (2019) How crickets become freeze-tolerant: the transcriptomic underpinnings of acclimation in Gryllus veletis. Comparative Biochemistry and Physiology D, 29: 55-66.
11. Toxopeus, J., McKinnon, A.H, Stetina, T., Turnbull, K.F. and Sinclair, B.J. (2019) Laboratory acclimation to autumn-like conditions induces freeze tolerance in the spring field cricket Gryllus veletis (Orthoptera: Gryllidae). Journal of Insect Physiology, 113: 9-16.
2018
10. Toxopeus, J. and Sinclair B.J. (2018) Mechanisms underlying insect freeze tolerance. Biological Reviews, 93: 1891-1914.
2017
9. Newman, C.E.*, Toxopeus, J., Udaka, H., Ahn, S., Martynowicz, D.M., Graether, S.P., Sinclair, B.J. and Percival-Smith, A. (2017) CRISPR-induced null alleles show that Frost protects Drosophila melanogaster reproduction after cold exposure. Journal of Experimental Biology,Â
8. Des Marteaux, L.E., McKinnon, A.H, Udaka, H., Toxopeus, J. and Sinclair, B.J. (2017) Effects of cold-acclimation on gene expression in Fall field cricket (Gryllus pennsylvanicus) ionoregulatory tissues. BMC Genomics, 18: 357.
7. Andrushchenko, I.V., Taylor, B.R., Toxopeus, J. and Wilson, E. (2017) Congregations of the leaf-shredding insect Lepidostoma togatum mediate exceptionally rapid mass loss from leaf litter in Nova Scotia rivers. Hydrobiologia, 78: 245-265.
2016
6. Toxopeus, J., Lebenzon, J.E., McKinnon, A.H and Sinclair B.J. (2016) Freeze tolerance of Cyphoderris montrosa (Orthoptera: Prophalangopsidae). The Canadian Entomologist, 148: 668-672.
5. Toxopeus, J., Jakobs, R., Ferguson, L.V., Gariepy, T.D. and Sinclair, B.J. (2016) Reproductive arrest and stress resistance in winter-acclimated Drosophila suzukii. Journal of Insect Physiology, 89: 37-51.
2014
4. Toxopeus, J., Warner, A.H. and MacRae, T.H. (2014) Group 1 LEA proteins contribute to the desiccation and freeze tolerance of Artemia franciscana embryos. Cell Stress & Chaperones, 19: 939-948.
3. King, A.M., Toxopeus, J. and MacRae, T.H. (2014) Artemin, a diapause-specific chaperone, contributes to stress tolerance of Artemia cysts and influences their release from females. Journal of Experimental Biology, 217: 1719-1724.
2013
2. King, A.M., Toxopeus, J. and MacRae, T.H. (2013) Functional differentiation of small heat shock proteins in diapause-destined Artemia embryos. FEBS Journal, 280: 4761-4772.
2011
1. Toxopeus, J., Kozera, C.J., O’Leary, S.J.B. and Garbary, D.J. (2011) A reclassification of Mycophycias ascophylli (Ascomycota) based on nuclear large ribosomal subunit DNA sequences. Botanica Marina, 54: 325-334.
The Toxopeus Lab 