By , May 20, 2009

Please visit my Google Scholar Profile page for the most up to date list

Richardson, R.T., Conflitti, I.M., Borba, R.S., Hoover, S.E., Currie, R.W., Giovenazzo, P., Guarna, M.M., Pernal, S.F., Foster, L.J., Zayed, A. (2023). Land use changes associated with declining honey bee health across temperate North America. Environmental Research Letters. 18:064042. DOI 10.1088/1748-9326/acd867.

Zayed, A. (2023). Monoculture is good if you are a squash bee. Proceedings of the National Academy of Sciences, USA. 120: e2304921120.

Tsvetkov, N., Bahia, S., Calla, B., Berenbaum, M.R., Zayed, A. (2023). Genetics of tolerance in honeybees to the neonicotinoid clothianidin. iScience.

Conflitti, I. M., Arshad Imrit, M., Morrison, B., Sharma, S., Colla, S. R., & Zayed, A. (2022). Bees in the six: Determinants of bumblebee habitat quality in urban landscapes. Ecology and Evolution, 12, e8667.

Borba, R. S., Hoover, S. E., Currie, R. W., Giovenazzo, P., Guarna, M. M., Foster, L. J., Zayed, A., & Pernal, S. F. (2022). Phenomic analysis of the honey bee pathogen-web and its dynamics on colony productivity, health and social immunity behaviors. PLOS ONE.

Tsvetkov, N. and Zayed, A. (2021). Searching beyond the streetlight: neonicotinoid exposure alters the neurogenomic state of worker honey beesEcology and Evolution.

Bumblebee, Bombus sp, male

K. A. Dogantzis, T. Tiwari, I. M. Conflitti, A. Dey, H. M. Patch, E. M. Muli, . Garnery, C.W. Whitfield, E. Stolle, A.S. Alqarni, M.H. Allsopp, and A. Zayed. (2021). Thrice out of Asia and the adaptive radiation of the western honey bee. Science Advances. [ Press release, NewScientist Story]

Bumblebee, Bombus griseocollies, female

Bixby, M., Polinsky, M., Scarlett, R., Higo, H., Common, J., Hoover, S.E., Foster, L.J., Zayed, A., Guarna, M.M. (2021). Impacts of COVID-19 on Canadian Beekeeping: Survey Results and a Profitability Analysis. Journal of Economic Entomology.

Tsvetkov, N., MacPhail, V.J., Colla, S.R. and Zayed, A. (2021). Conservation genomics reveals pesticide and pathogen exposure in the declining bumblebee Bombus terricola. Molecular Ecology. [press release]

Oldroyd, B.P., Holmes, M.J., Buchmann, G., Yagound, B., Allsopp, M.H., Zayed, A., Beekman, M. (2021). Adaptive, caste-specific changes to recombination rates in a thelytokous honeybee population. Proceedings of the Royal Society, B.

Toth, A.L. and Zayed, A. (2021). The honey bee genome: what has it been good for?Apidologie.

Tanushree, T. and Zayed, A. (2021). Practical applications of genomics in managing honey bee health.Veterinary Clinics: Food Animal Practice.

Imrit, M.A., Dogantzis, K.A., Harpur, B.A., Zayed, A. (2020). Eusociality influences the strength of negative selection on insect genomes. Proceedings of the Royal Society, B.

Harpur, B.A., Kadri, S.M., Orsi, R.O., Whitfield, C.W., and Zayed, A. (2020). Defense response in Africanized honey bees (Apis mellifera L.) is underpinned by complex patterns of admixture. Genome Biology and Evolution. [Press Release]

Female Centris sp., Chile

Bixby, M., Hoover, S.E., McCallum, R., Ibrahim, A., Ovinge, L, Olmstead, S., Pernal, S.F., Zayed, A., Foster, L.J., Guarna, M.M. (2020). Honey bee queen production: Canadian costing case study and profitability analysis. Journal of Economic Entomology.

Long-horned bee, Melissodes sp, female

Kapheim, K.M., Jones, B.M., Pan, H., Li, C., Harpur, B.A., Kent, C.F., Zayed, A., Ioannidis, P., Waterhouse, R.M., Kingwell, C., Stolle, E., Avalos, A., Zhang, G., McMillan, W.O., Wcislo, W. (2020). Developmental plasticity shapes traits and selection in a facultatively eusocial bee. Proceedings of the National Academy of Sciences, USA.

Yagound, B., Dogantzis, K.A., Zayed, A., Lim, J., Broekhuyse, P., Remnant, E.J., Allsopp, M.H., Aamidor, S.E., Buchmann, G., Oldroyd, B.P. (2020). A single gene causes thelytokous parthenogenesis, the defining feature of the Cape honey bee Apis mellifera capensis. Current Biology.

Smith, N.*, Yagound, B., Remnant, E., Foster, C., Buchmann, G., Allsopp, M., Kent, C., Zayed, A., Rose, S.; Lo, K., Ashe, A., Harpur, B., Beekman, M., Oldroyd, B. (2020). Paternally-biased gene expression follows kin-selected predictions in female honey bee embryos. Molecular Ecology.

Grozinger, C.M. and Zayed, A. (2020). Improving bee health through genomics. Nature Review Genetics.

Tsvetkov, N., Cook, C.N., Zayed, A. (2019). Effects of group size on learning and memory in the honey bee, Apis mellfiera. Journal of Experimental Biology.

Harpur, B.A., Guarna, M.M., Huxter, E., Higo, H. Moon, K-M., Hoover, S.E., Ibrahim, A., Melathopoulos, A.P., Desai, S., Currie, R.W., Pernal, S.F., Foster, L.J., Zayed, A. (2019). Integrative genomics reveals the genetics and evolution of the honey bee’s social immune system.Genome Biology and Evolution. [press release]

Dogantzis, K.A., and Zayed, A. (2019). Recent advances in population and quantitive genomics of honey bees. Current Opinion in Insect Science.

Smith, N.M.A. Wade, C., Allsopp, M.H., Harpur, B.A., Zayed, A., Rose, S.A., Engelstädter, J., Chapman, N.C., Yagound, B., Oldryod, B.P. (2019). Strikingly high levels of heterozygosity despite 20 years of inbreeding in a clonal honey bee. Journal of Evolutionary Biology.

Large carpenter bee, Xylocopa virginia, female

Kapheim, K.M., Pan, H., Li, C., Blatti III, C., Harpur, B.A., Ioannidis, P., Jones, B.M., Kent, C.F., Ruzzante, L., Sloofman, L., Stolle, E., Waterhouse, R.M., Zayed, A., Zhang, G., Wcislo, W.T. (2019). Draft genome assembly and population genetics of an agricultural pollinator, the solitary alkali bee (Halictidae: Nomia melanderi). G3: Gene, Genomes, Genetics.

Chapman, N.C., Sheng, J., Lim, J., Malfroy, S.F., Harpur, B.A., Zayed, A., Allsopp, M.H., Rinderer, T.E., Roberts, J.M.K, Remnant, E.J., Oldroyd, B.P. (2019). Genetic origins of honeybees (Apis mellifera) on Kangaroo Island and Norfolk Island (Australia) and Eua, Tongatapu and Vava’u islands, Kingdom of Tonga. Apidologie.

Kent, C.F., Dey, A., Patel, H., Tsvetkov, N., Tiwari, T., MacPhail, V.J., Gobeil, Y., Harpur, B.A., Gurtowski, J., Schatz, M.C., Colla, S.R., and Zayed, A. (2018). Conservation genomics of a declining North American bumblebee, Bombus terricola, reveal inbreeding and selection on immune genes. Frontiers in Genetics. [press release]

Long-horned bee, Melissodes, male

Tsvetkov, N. Madani, B., Krimus, L. MacDonald, S.E. and Zayed, A. (2018). Worker behavioural state and cGMP affect spatial memory in the honey bee Apis mellifera. Insectes Sociaux. [press release]

Dogantzis, K.A., Harpur, B.A., Rodriques, A., Beani, L., Toth, A.L. and Zayed, A. (2018). Insects with similar social complexity show convergent patterns of adaptive molecular evolution. Nature Scientific Reports.

Tsvetkov, N. and Zayed, A. (2018). The Poisoned Oasis: Neonicotinoid Spillover Harms Bees Near Corn. The Science Breaker.

Johnson, R.M., Harpur, B.A., Dogantzis, K., Zayed, A., and Berenbaum, M.R. (2018). Genomic footprint of evolution of eusocilaity in bees: floral food use and CYPome “blooms”. Insectes Sociaux.

Harpur, B.A., Dey, A., Albert, J.R., Patel, S., Hines, H.M., Hasselmann, M., Packer, L. Zayed, A. (2017). Queens and Workers Contribute Differently to Adaptive Evolution in Bumble Bees and Honey Bees. Genome Biology and Evolution.

Tsvetkov, N., Samson-Robert, O., Sood, K., Patel, H.S., Malena, D.A., Gajiwala, P.H., Maciukiewicz, P., Fournier, V., Zayed, A. (2017). Chronic exposure to neonicotinoids reduces honeybee health near corn crops.Science. [Editor’s SummaryKerr Op Story, Nature News, Forbes, NPR, AAAS, Metro,LA Times, The Scientist, New Scientist, Washington Post, Radio Canada International, BBC News, The Guardian, The Star, Vice, Scientific American]

Long-horned bee, Melissodes, male, on Rudbeckia

Chapman, N.C., Bourgeois, A.L., Beaman, L.D., Lim, J., Harpur, B.A., Zayed, A., Allsopp, M.H., Rinderer, T.E., Oldroyd, B.P. (2017). An abbreviated SNP panel for ancestry assignment of honeybees (Apis mellifera). Apidologie.

Zayed, A. (2016). Evolution: Insect invasions and natural selection. Nature. [News & Views article, Gloag et al. paper in Nature Ecology and Evolution]

Kadri, S.M. Harpur, B.A., Orsi, R.O., Zayed, A. (2016). A variant reference data set for the Africanized honeybee, Apis mellifera. Scientific Data. [press release]

Long-horned bee, Melissodes, female, on Echinacea

Lozier, J.D. and Zayed, A. (2016). Bee conservation in the age of genomics. Conservation Genetics.

Salmela, H., Stark, T., Stucki, D., Fuchs, S., Freitak, D., Dey, A., Kent, C.F., Zayed, A., Dhaygude, Kishor, Hokkanen, H., Sundstrom, L. (2016). Ancient duplications led to functional divergence of vitellogenin-like genes involved in inflammation and oxidative stress in honey bees.Genome Biology and Evolution.

Southey, B.R., Zhu, P., Carr-Markell, M.L., Liang, Z.S., Zayed, A., Li, R., Robinson, G.E., Rodriguez-Zas, S.L. (2016). Characterization of genomic variants associated with scout and recruit behavioral castes in honey bees using whole-genome sequencing. PLOS ONE.

McAfee, A., Harpur, B.A., Michaud, S., Beavis, R.C., Zayed, A. and Foster, L.J. (2015). Towards an upgraded honey bee (Apis mellifera L.) genome annotation using proteogenomics. Journal of Proteome Research.

Vojvodic, S., Johnson, B.R., Harpur, B.A., Kent, C.F., Zayed, A., Anderson, K.E., Linksvayer, T.A. (2015). The transcriptomic and evolutionary signature of social interactions regulating honey bee caste development. Ecology and Evolution.

Harpur BA, Chapman NC, Krimus L, Maciukiewicz P, Sandhu V, Sood K, Lim J, Rinderer TE, Allsopp MH, Oldroyd BP and Zayed A. (2015). Assessing patterns of admixture and ancestry in Canadian honey bees. Insectes Sociaux.

Kapheim, K. M. et al. including Kent, C.F. and Zayed, A. (2015). Genomic signatures of evolutionary transitions from solitary to group living. Science. [press release, The Scientist]

Chapman NC, Harpur BA, Lim J, Rinderer TE, Allsopp MH, Zayed A, Oldroyd BP. (2015) Hybrid origins of Australian honey bees (Apis mellifera). Apidologie.

Chapman, N.C., Harpur, B.A., Lim, J., Rinderer, T.E., Allsopp, M.H., Zayed, A., Oldroyd, B.P. (2015). A SNP test to identify Africanized honey bees via proportion of ‘African’ ancestry. Molecular Ecology Resources. [press release York U, press release Sydney]

A cuckoo bee from the genus Nomada

Hasselmann, M. Ferretti, L. and Zayed, A. (2015). Beyond fruit-flies: population genomic advances in non-Drosophila arthropodsBriefings in Functional Genomics.

Kent, C.F. and Zayed, A. (2015). Population Genomic and Phylogenomic Insights into the Evolution of Physiology and Behaviour in Social Insects. Advances in Insect Physiology.

Molodtsova, D., Harpur, B.A., Kent, C.F., Seevananthan, K., and Zayed, A. (2014). Pleiotropy constrains the evolution of protein but not regulatory sequences in a transcription regulatory network influencing complex social behaviours. Frontiers in Genetics.

Harpur, B.A., Chernyshova, A., Soltani, A., Tsvetkov, N., Mahjoorighasrodashti, M. Xu, Z., and Zayed, A. (2014). No genetic tradeoffs between social and individual innate immunity in the honey bee, Apis mellifera. Plos ONE.

Harpur, B.A., Kent, C.F., Molodtsova, D., Lebon, J.M.D., Alqarni, A.S., Owayss, A.A., Zayed, A. (2014). Population genomics of the honey bee reveals strong signatures of positive selection on worker traitsProceedings of the National Academy of Sciences USA. [Press release, This Week in PNAS, Nature Middle East highlightPNAS cake II, i09]

Harpur, B.A., Minaei, S., Kent, C.F., and Zayed, A.  (2013).  Admixture increases diversity in managed honey bees. Reply to De la Rúa et al. (2013). Molecular Ecology. [summary]

A cuckoo bee from the genus Triepeolus

Harpur, B.A. and Zayed, A. (2013). Accelerated evolution of innate immunity proteins in social insects: adaptive evolution or relaxed constraint?Molecular Biology and Evolution. [summary, Press release]

Kent, C.F., Zayed, A. (2013).  Evolution of recombination and genome structure in eusocial insects. Communicative & Integrative Biology.

Kent, C.F., Minaei, S., Harpur, B.A., and Zayed, A. (2013). Reply to Hunt et al.: Worker-biased genes have high guanine–cytosine content and rates of nucleotide diversity in the honey bee. Proceedings of the National Academy of Sciences USA.

Harpur, B.A., Sobhani, M., and Zayed, A. (2013). A review of the consequences of complementary sex determination and diploid male production on mating failures in the Hymenoptera. Entomologia Experimentalis et Applicata. [General Summary].

Kent, C.F., Minaei, S., Harpur, B.A., and Zayed, A. (2012). Recombination is associated with the evolution of genome structure and worker behavior in honey bees. Proceedings of the National Academy of Sciences USA. [Press Release; General Summary; Cake]

Zayed, A., and Robinson G.E. (2012) Understanding the relationship between brain gene expression and social behavior: Lessons from the honey bee. Annual Review of Genetics. [General Summary]

Harpur, B.A., Minaei, S., Kent, C.F., and Zayed, A.  (2012). Management increases genetic diversity of honey bees via admixture.  Molecular Ecology. [Press Release; General Summary; Molecular Ecology Perspective]

Zayed, A., Neager, N., Rodriguez-Zas, S., Robinson, G.E. (2012). Common and novel transcriptional routes to behavioral maturation in worker and male honey bees. Genes, Brain and Behavior. [Press Release; General Summary]

Kent, C., Issa, A., Bunting, A.C., and Zayed, A. (2011). Adaptive evolution of a key gene affecting queen and worker traits in the honey bee, Apis mellifera. Molecular Ecology. [Molecular Ecology Perspective; General Summary]

Long-horned bee, Melissodes menuachas, female

Zayed, A. (2009). Bee genetics and conservation. Apidologie.

Zayed, A., Whitfield, C.W. (2008). A genome-wide signature of positive selection in ancient and recent invasive expansions of the honey bee Apis mellifera. Proceedings of the National Academy of Sciences USA, 105:3421-3426. [press release, USA Today, Inside Illinois, John Hawks’ blog]

Zayed, A., Constantin, S.A. and Packer, L. (2007). Successful biological invasion despite a severe genetic load. PLoS ONE. [press release, Conservation Magazine]

Zayed, A., and Packer L. (2007). Population genetics of a solitary oligolectic sweat bee, Lasioglossum (Sphecodogastra) oenotherae (Hymenoptera: Halictidae). Heredity.

Zayed, A. (2006). Characterization of microsatellite loci from the solitary sweat bees Lasioglossum leucozonium and Lasioglossum oenotherae (Hymenoptera, Halictidae). Molecular Ecology Notes.

Zayed, A., and Packer, L. (2005). Complementary sex determination substantially increases extinction proneness of haplodiploid populations. Proceedings of the National Academy of Sciences USA. [Toronto Star, Radio Canada, press release, Y-File, Research Focus feature in Trends in Ecology and Evolution, Faculty of 1000]

Zayed, A., Packer, L., Grixti, J.C., Ruz, L., Toro, H., and Owen, R. (2005). Increased genetic differentiation in a specialist versus a generalist bee: implications for conservation. Conservation Genetics.

Packer, L.*, Zayed, A.*, Grixti, J.C., Ruz, L., Owen, R., Vivallo, F., and Toro, H. (2005). Conservation genetics of potentially endangered mutualisms: reduced levels of genetic variation in specialist versus generalist bees. Conservation Biology. [Excalibur story] * L. Packer and A. Zayed contributed equally to this paper.

Zayed, A. (2004). Effective population size in Hymenoptera with complementary sex determination. Heredity.

Zayed, A., Roubik, D.W., And Packer, L. (2004). Use of diploid male frequency data as an indicator of pollinator decline. Proceedings of the Royal Society of London B. [press release, Y-File, YorkU article]

Grixti, J.C., Zayed, A., and Packer, L. (2004). Behavioral interactions among females of Acamptopoeum submetallicum (Spinola) and Nolanomelissa toroi Rozen (Hymenoptera: Andrenidae). Journal of Hymenoptera Research. 13:48-56.

Zayed, A. and Packer, L. (2002). Genetic differentiation across a behavioural boundary in a primitively eusocial bee, Halictus poeyi Lepeletier (Hymenoptera: Halictidae). Insectes Sociaux.

Zayed, A. and Packer, L. (2001). High levels of diploid male production in a primitively eusocial bee (Hymenoptera: Halictidae). Heredity.


Genomics, Physiology and Behaviour of Social Insects. Edited by Amro Zayed and Clement F. Kent. Advances in Insect Physiology, 2015, Volume 48, Pages 1-363. ISBN: 978-0-12-802157-6

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