A website from UGA Cooperative Extension
  • Smith, A.H., O’Connor, M.P., Deal, B., Kotzer, C., Lee, A., Wagner, B., Joffe, J., Woloszynek, S., Oliver, K.M. and Russell, J.A. (2021), Does getting defensive get you anywhere?—Seasonal balancing selection, temperature, and parasitoids shape real-world, protective endosymbiont dynamics in the pea aphid. Mol Ecol, 30: 2449-2472. https://doi.org/10.1111/mec.15906
  • Oliver KM & Higashi CHV (2021). Symbiosis in a rapidly changing world. In Advances in Environmental Microbiology: Microbes: the foundation stone of the biosphere. Ed. Hurst CJ. Springer.
  • Russell JA & Oliver KM (2020). Mechanisms underlying microbial symbiosis. In Mechanisms underlying microbial symbiosis. Ed. Oliver KM & Russell JA. Advances in Insect Physiology, v58. Elsevier.
  • Oliver KM & Perlman SJ (2020). Toxin-mediated protection against natural enemies by insect defensive Symbionts (2020). In Mechanisms underlying microbial symbiosis. Ed. Oliver KM & Russell JA. Advances in Insect Physiology, v58. Elsevier.
  • Higashi CHV, Barton BT, Oliver KM (2020). Warmer nights offer no respite for a defensive mutualism. Journal of Animal Ecology 2020;89(8):1895-1905. doi:10.1111/1365-2656.13238
  • Ives, AR, Barton BT, Penczykowski RM, Harmon JP, Kim Kl, Oliver KM, Radeloff VC (2020) Ecological-evolutionary dynamics in an agricultural host-parasite system. Nature Ecology & Evolution (5):702-711 https://doi.org/10.1038/s41559-020-1155-0.
  • Weldon SR, Russell JA & Oliver KM (2020) More is not always better: coinfections with defensive symbionts generate highly variable outcomes. Applied & Environmental Microbiology. 86:e02537-19. https://doi.org/10.1128/AEM.02537-19.
  • Patel V, Chevignon G, Manzano-Marín A, Brandt JW, Strand MR, Russell JA, Oliver KM. 2019. Cultivation-assisted genome of Candidatus Fukatsuia symbiotica; the enigmatic “X-Type” symbiont of aphids. Genome Biology and Evolution 11: 3510-3522. https://doi.org/10.1093/gbe/evz252
  • Lynn-Bell N, Strand MR & Oliver KM (2019) Bacteriophage acquisition restores protective             Mutualism. Microbiology doi: 10.1099/mic.0.000816
  • Oliver KM (2019). Editorial Overview: Microbial manipulation of insect-parasite interactions. Current Opinion in Insect Science 32. doi: 10.1016/j.cois.2019.04.005.
  • Oliver KM & Higashi CHV (2019). Variations on a protective theme: Hamiltonella defensa infections in aphids variably impact parasitoid success. Current Opinion in Insect Science 32: 1-7 doi.org/10.1016/j.cois.2018.08.009.
  • Chevignon G, Boyd BB, Brandt JW, Oliver KM & Strand MR (2018). Culture-facilitated whole-genome sequencing identifies key features underlying strain variation in the heritable facultative symbiont Hamiltonella defensa. Genome Biology & Evolution 10(3) 786-802. doi.org/10.1093/gbe/evy036
  • Doremus MR, Smith AR, Kim KL, Holder AJ, Russell JA & Oliver KM (2018). Breakdown of a defensive symbiosis, but not endogenous defenses, at elevated temperatures Molecular Ecology 27:8 2138-2151 DOI: 10.1111/mec.14399
  • Martinez AJ, Doremus MR, Kim KL & Oliver KM (2018). Multi-modal defenses in aphid offer redundant protection and increased costs likely impeding a protective mutualism. Journal of Animal Ecology 87(2) 464-477 DOI: 10.1111/1365-2656.12675
  • Brandt JW, Chevignon G, Oliver KM & Strand MR (2018). Culture of an aphid symbiontdemonstrates its direct role in defense against parasitoids. Proc. Royal Soc. Lon. Ser. B. 284(1866) 20171925. https://dx.doi.org/10.1098/rspb.2017.1925
  • Rock DI, Smith AH, Joffe J, Albertus A. Wong N. O’Connor M, Oliver KM, Russell JA (2018) Context-dependent vertical transmission shapes strong symbiont community structure in the pea aphid, Acyrthosiphon pisum. Molecular Ecology 27(8) 2039-2056. DOI: 10.1111/mec.14449;
  • Hopper KR, Kuhn KL, Lanier K, Rhoades JH, Oliver KM, White JA, Asplen MA & Heimpel GE (2018). The defensive aphid symbiont Hamiltonella defensa affects host quality differently for Aphelinus glycinis versus Aphelinus atriplicis. Biological Control 116 3-9. doi.org/10.1016/j.biocontrol.2017.05.008.
  • Desneux N, Asplen MA, Brady CM. Heimpel GE, Hopper KR, Luo C, Monticell L, Oliver KM, White JA (2018). Intraspecific variation in facultative symbiont infection among native and exotic pest populations: potential implications for biological control. Biological Control 116 27-35 doi.org/10.1016/j.biocontrol.2017.06.007
  • Miller CR, Barton BT, Zhu L, Radeloff VC, Oliver KM, Harmon JP & Ives AR (2017).  Combined effects of night warming and light pollution on predator-prey interactions. Proc. Royal Soc Lond. B. 284(1864) DOI: 10.1098/rspb.2017.1195
  • Kraft LJ, Kopko J, Harmon JP & Oliver KM (2017). Aphid symbionts and endogenous resistance traits mediate competition mediate rival parasitoids. PlosOne. DOI:10.1371/journal.pone.0180729
  • Dennis AB, Patel V, Oliver KM & Vorburger C (2017) Parasitoid gene expression changes after adaptation to symbiont-protected hosts. Evolution. 71: 11 2599-2617 DOI: 10.1111/evo.13333
  • Russell JA, Oliver KM & Hansen AK (2017) Band-aids for Buchnera and B-vitamins for all. Molecular Ecology 26:8. 2199-2203.
  • Doremus MR & Oliver KM (2017) Aphid heritable symbiont exploits defensive mutualism. Applied & Environmental Microbiology 83:8, doi:10.1128/AEM.03276
  • Martinez AJ, Kim KL, Harmon JP & Oliver KM (2016) Specificity of multi-modal aphid defenses against two rival parasitoids. PlosOne 11(5): e0154670.doi:10.1371/journal.pone.0154670
  • Oliver KM & Russell JA (2016). Symbiosis, an introduction to. Encyclopedia of Evolutionary  Biology. Editor; R. Kliman. Elsevier.  
  • Weldon SR & Oliver KM (2016). Diverse bacteriophage roles in an aphid defensive mutualism. Advances in Environmental Microbiology. Editor: CJ. Hurst Volume: The Mechanistic Benefits of Microbial Symbionts. Springer, Berlin.
  • Wagner, SM., Martinez AJ, Kim KL, Dehnel AC, Oliver KM & White JA (2015).  Facultative endosymbionts mediate dietary specialization in a polyphagous herbivore. Functional Ecology. 29: 1402-1410: DOI: 10.1111/1365-2435.12459.
  • Smith AH, Lukasik P, O’Connor M, Lee A, Mayo G, Drott M, Doll S, Oliver KM & Russell JA (2015). Patterns, causes, and consequences of defensive microbiome dynamics across multiple scales. Molecular Ecology. 24: 5 1135-1149 DOI: 10.1111/mec.13095
  • Su Q, Oliver KM, Xie W, Wu Q, Wang S & Zhang Y (2015). The whitefly-associated facultative symbiont Hamiltonella suppresses induced plant defenses in tomato. Functional Ecology 29: 1007-1018 DOI: 10.1111/1365-2435.12405
  • Oliver KM & Martinez AJ (2014). How resident microbes modulate ecologically-important traits of insects. Current Opinion in Insect Science. 4: 1-7 DOI:10.1016/j.cois.2014.08.001.
  • Dykstra HR, Weldon SR, Martinez AJ, White J, Hopper K, Heimpel, G, Asplen M, Oliver KM. (2014). Factors limiting the spread of the protective symbiont Hamiltonella defensa in the aphid Aphis craccivora. Applied and Environmental Microbiology. 80:18  doi:10.1128/AEM.01775-14
  • Asplen MK, Bano N, Brady CM,  Desneux N. Hopper KR, Malouines C, Oliver KM, White JA & Heimpel GE.  (2014). Specialization of bacterial endosymbionts that protect aphids from parasitoids. Ecological Entomology 39:6 736-739. DOI: 10.1111/een.12153
  • Martinez AJ, Ritter SG, Doremus MR & Oliver KM (2014). Aphid-encoded variability in susceptibility to a parasitoid. BMC Evolutionary Biology 14: 127 doi:10.1186/1471-2148-14-127
  • Martinez AJ, Weldon SR & Oliver KM (2014). Effects of parasitism on aphid nutritional and Protective symbioses. Molecular Ecology 23:6 1594-1607. doi: 10.1111/mec.12550.
  • Oliver KM, Smith AH & Russell JA (2014). Defensive symbiosis in the real world—framing studies on the diversity and maintenance of protective bacteria in natural insect populations. Functional Ecology 28: 341-355; epub: June 2013: DOI: 10.1111/1365-2435.12133
  • Brady CM, Asplen M, Heimpel GE, Hopper K, Linnen C, Oliver KM, Wulff JA & White JA (2013). Global populations of Aphis craccivora show a high diversity of facultative endosymbionts Microbial Ecology. 67:1 195-204.
  • Su Q, Oliver KM, Pan H, Jian XG, Liu B, Wang S, Wu Q, Baoyun Xu, White JA. Zhou Z & Zhang Y (2013). Facultative symbiont t Hamiltonella confers benefits to Bemisia tabaci, an invasive agricultural pest worldwide. Environmental Entomology. 42:6 1265-1271.
  • Russell JA, Weldon S, Smith D, Kim KL, Hu Y, Lukasik P, Doll S, Anastopoulos I, Novin M, and Oliver KM (2013) Uncovering symbiont-driven genetic diversity across North American pea aphids. Molecular Ecology 22: 2045-2059. DOI: 10.1111/mec.12211
  • Weldon SR, Strand MR & Oliver KM (2013). Phage loss and the breakdown of a defensive symbiosis. Proc. of the Royal Society London Series B. 280 (1751) DOI: 10.1098/rspb.2012.2103.
  • Oliver KM, Noge K, Huang EM, Campos JM, Becerra JX & Hunter MS (2012) Parasitic wasp responses to symbiont-based defense. BMC Biology 10:11 Doi:10.1186/1741-7007-10-11
  • Erikson, DM, Wood EA, Oliver KM, Billick I & Abbot P (2012). The effect of ants on the population dynamics of a protective symbiont of aphids, Hamiltonella defensa. Annals of the Entomological Society of America. 105: 447 -453.
  • Oliver KM, Degnan PH, Burke GR & Moran NA (2010). Facultative symbionts of aphids and the horizontal transfer of ecologically important traits. Ann. Review of Entomology 55, 247 – 266.
  • Oliver KM, Degnan PH, Hunter MS. & Moran NA (2009). Bacteriophages encode factors required for protection in a symbiotic mutualism. Science 325, 992-994.
  • Oliver KM & Moran NA (2009). Defensive symbionts in aphids and other insects. Defensive mutualism in microbial symbiosis. Eds. White, J. F. & Torres, M. S. Taylor & Francis: London.
  • Oliver KM, Campos J, Moran NA & Hunter MS (2008). Population dynamics of defensive symbionts in aphids. Proceedings of the Royal Society of London Series B-Biological Sciences 275, 293-299.
  • Oliver KM, Moran NA & Hunter MS (2006). Costs and benefits of a superinfection of facultative symbionts in aphids. Proceedings of the Royal Society of London Series B-Biological Sciences 273, 1273-1280.
  • Oliver KM, Moran NA & Hunter MS (2005). Variation in resistance to parasitism in aphids is due to symbionts not host genotype. Proceedings of the National Academy of Sciences of the United States of America 102, 12795-12800.
  • Oliver KM, Russell JA, Moran, NA & Hunter MS (2003). Facultative bacterial symbionts in aphids confer resistance to parasitic wasps. Proceedings of the National Academy of Sciences of the United States of America 100, 1803-1807.