My current research interests are directed towards the development of molecular monitoring tools understanding the acquisition, spread and evolution of antimicrobial resistance (AMR) in the environment. In particular, how antibiotic resistance genes are transferred within and between microbial communities and are all resistance genes equally mobile and pose an equal threat to the defined receptors.
I am also involved a large study investigating the population genetics of the Meadow Brown butterfly Maniola jurtina and generating and applying molecular markers to understand the relationship of marsh tits (Poecile palustris) in fragmented woodlands.
Previous research interests have been centred on insect evolution in bioluminescent and the population genetics/DNA barcoding of disease vectors such as Phlebotomine sandflies (Psychodidae), mosquitoes (Culicidae) and blackflies (Simuliidae).
PhD Student Supervision:
Matthew Greenwell (NERC) Modelling functional connectivity of butterflies across landscaped using population and genetic data. Reading University, (2016 - present)
Claire Cailes (NERC) Phenotypic and genetic effects of Chernobyl-derived radionuclide contamination on the red-eyed damselfly Erythromma najas (Odonata, Coenagrionidae) Plymouth University (2004-2006)
1999-current: Higher Scientific Officer, Centre for Ecology and Hydrology, Wallingford (1999-2010 at
former Institute of Virology and Environmental Microbiology, Oxford, UK)
1995-1999: Research Assistant, Entomology Department, Natural History Museum, Cromwell Road,
1993-1995: Scientific Officer, Laboratory of the Government Chemist, Teddington, Middlesex, UK
B.Sc. Genetics (Hons) Queen Mary College, University of London
M.Sc. Forensic Science (Dis) King's. College, University of London
Ph.D. Insect Evolutionary Genetics, Brookes University, Oxford
DAY JC, Gweon H.S. & Post, R.J (2016) Sequence and organization of the complete mitochondrial genome of the blackfly Simulium variegatum (Diptera: Simuliidae). Mitochondrial DNA Part B: 1:799-801.
Broughton RK, Alker PJ, Bellamy PE, Britton S, Dadam D, DAY JC, Miles M, Hinsley SA (2016) Comparative biometrics of British marsh tits Poecile palustris and willow tits P. montana. Ringing & Migration 31 30-40.
DAY JC (2016) Gene duplication in beetle bioluminescence. In: Aardse, Hester; Alben, Astrid, (eds.) Findings on light. Zurich, Lars Müller Publishers, 26-30. (PARS' Atlas of Creative Thinking, 3).
DAY JC, Broughton RK & Hinsley SA (2015) Sequence and organisation of the complete mitochondrial genome of the marsh tit Poecile palustris (Aves: Paridae): Mitochondrial DNA Part A 27 3212-3213.
Tisi LC, Stewart AJA, Booth D & DAY JC (2014) Low level bioluminescent leakage throughout the body of the European glow-worm Lampyris noctiluca (Coleoptera: Lampyridae). Entomologia Generalis 35 47-51.
DAY JC (2013) The role of gene duplication in the evolution of beetle bioluminescence. Trends in Entomology 9 55-63.
Kirton LG, Lim GT & DAY JC (Eds) (2012) Proceedings of the Second International Firefly Symposium, Selangor, Malaysia 2010. 218pp.
DAY JC (2011) Parasites, predators and defence of fireflies and glow-worms. Lampyrid 1, 70-102.
DAY JC, Mustapha M & Post RJ (2010) The subgenus Eusimulium (Diptera: Simuliidae: Simulium) in Britain. Aquatic Insects 32(4), 281-292.
DAY JC (2009) Beetle bioluminescence: a genetic and enzymatic research review. In: Luminescence Research, ed. Meyer-Rochow, B. pp 255-276, Research Signpost, Trivandrum.
DAY JC, Goodall TI & Bailey MJ ( 2009) The evolution of the adenylate-forming protein family in beetles: multiple luciferase gene paralogues in fireflies and glow-worms. Molecular Phylogenetics & Evolution 50 93-101.
Geisthardt M, Figueira G, DAY JC & De Cock R (2008) A review of Portuguese fireflies with a description of a new species Lampyris iberica sp. nov. (Coleoptera: Lampyridae). Heteropterus, Revista de Entomología 8(2):147-154.
DAY JC, Goodall TI & Post RJ (2008) Confirmation of the species status of Simulium galeratum Edwards, 1920 (Diptera: Simuliidae) in Britain using molecular taxonomy. Medical & Veterinary Entomology, 22 55-61.
Hunter SJ, Goodall TI, Walsh KA, Owen R & DAY JC (2007). Non-Destructive DNA extraction from blackflies (Diptera: Simuliidae): retaining voucher specimens for DNA barcoding projects. Molecular Ecology Resources 8 56-61.
DAY JC, Chaichi MJ, NajafiI I & Whiteley AS (2006) Genomic structure of the luciferase gene from the bioluminescent beetle Nyctophila cf. caucasica. Journal of Insect Science 6 37.
DAY JC (2005) Characterization of the luciferase gene and the 5' upstream region in the European glowworm Lampyris noctiluca (Coleoptera: Lampyridae). European Journal of Entomology 102(4): 787–791.
Trice E, Tyler J & DAY JC (2004) Description of pleural defensive organs in three species of firefly larvae (Coleoptera, Lampyridae). Zootaxa 76: 1-11.
Giesthardt M & DAY JC (2004) Lampyroidea maculata (Coleoptera: Lampyridae): A new species of lampyrid from Iran. Zootaxa 427 1-6.
DAY JC, Tisi LC & Bailey MJ (2004) The origins of light: beetle luciferin. Luminescence 19: 8-20.
DAY JC & Bailey MJ (2003) Structure and evolution of the luciferin-regenerating enzyme (LRE) gene from the firefly Photinus pyralis. Insect Molecular Biology 12 365-372.