Smithsonian National Museum of Natural History

Sean Brady

Chair of Entomology, Research Entomologist and Curator of Hymenoptera
Department / Division
Education
  • M.A., California State University, Fullerton
  • B.A., California Polytechnic University, Pomona
  • Ph.D., University of California, Davis
Research Interests

Systematics, phylogenetics, genomics, and biology of Hymenoptera (ants, bees, wasps)

Publications
  • Borowiec, Marek L., Rabeling, Christian, Brady, Sean G., Fisher, Brian L., Schultz, Ted R., and Ward, Philip S. 2019. "Compositional heterogeneity and outgroup choice influence the internal phylogeny of the ants." Molecular phylogenetics and evolution, 134 111–121. https://doi.org/10.1016/j.ympev.2019.01.024.
  • Bossert, Silas, Murray, Elizabeth A., Almeida, Eduardo A. B., Brady, Seán G., Blaimer, Bonnie B., and Danforth, Bryan N. 2019. "Combining transcriptomes and ultraconserved elements to illuminate the phylogeny of Apidae." Molecular Phylogenetics and Evolution, 130 121–131. https://doi.org/10.1016/j.ympev.2018.10.012.
  • Santos, Bernardo F., Alvarado, Mabel, Sääksjärvi, Ilari E., van Noort, Simon, Villemant, Claire, and Brady, Seán G. 2019. "Molecular phylogeny of Ateleutinae (Hymenoptera: Ichneumonidae): systematics and biogeography of a widespread parasitoid wasp lineage." Zoological Journal of the Linnean Society, 185, (4) 1057–1078. https://doi.org/10.1093/zoolinnean/zly072.
  • Santos, Bernardo F., Perrard, Adrien, and Brady, Sean G. 2019. "Running in circles in phylomorphospace: host environment constrains morphological diversification in parasitic wasps." Proceedings of the Royal Society B: Biological Sciences, 286, (1895) 20182352–20182352. https://doi.org/10.1098/rspb.2018.2352.
  • Baumann, Kate, Vicenzi, Edward P., Lam, Thomas, Douglas, Janet, Arbuckle, Kevin, Cribb, Bronwen, Brady, Seán G., and Fry, Bryan G. 2018. "Harden up: metal acquisition in the weaponized ovipositors of aculeate hymenoptera." Zoomorphology, (137) 389–406. https://doi.org/10.1007/s00435-018-0403-1.
  • Baumann, Kate, Vicenzi, Edward P., Lam, Thomas, Douglas, Janet, Arbuckle, Kevin, Cribb, Bronwen, Brady, Seán G., and Fry, Bryan G. 2018. "Correction to: Harden up: metal acquisition in the weaponized ovipositors of aculeate hymenoptera." Zoomorphology, 1–2. https://doi.org/10.1007/s00435-018-0413-z.
  • Blaimer, Bonnie B., Mawdsley, Jonathan R., and Brady, Seán G. 2018. "Multiple origins of sexual dichromatism and aposematism within large carpenter bees." Evolution, 72, (9) 1874–1899. https://doi.org/10.1111/evo.13558.
  • Blaimer, Bonnie B., Ward, Philip S., Schultz, Ted R., Fisher, Brian L., and Brady, Seán G. 2018. "Paleotropical Diversification Dominates the Evolution of the Hyperdiverse Ant Tribe Crematogastrini (Hymenoptera: Formicidae)." Insect Systematics and Diversity, 2, (5). https://doi.org/10.1093/isd/ixy013.
  • Boomsma, Jacobus J., Brady, Seán Gary, Dunn, Robert R., Gadau, Juergen, Heinze, Juergen, Keller, Laurent, Moreau, Corrie S., Sanders, Nathan J., Schrader, Lukas, Schultz, Ted R., Sundstrom, Lotta, Ward, Philip S., Wcislo, William T., Zhang, Guojie, and GAGA Consortium. 2017. "The Global Ant Genomics Alliance (GAGA)." Myrmecological News, 25 61–66.
  • Brady, Seán Gary. 2017. "Army ant invasions reveal phylogeographic processes across the Isthmus of Panama." Molecular ecology, 26, (3) 703–705. https://doi.org/10.1111/mec.13981.
  • Branstetter, Michael G., Danforth, Bryan N., Pitts, James P., Faircloth, Brant C., Ward, Philip S., Buffington, Matthew L., Gates, Michael W., Kula, Robert R., and Brady, Seán Gary. 2017. "Phylogenomic Insights into the Evolution of Stinging Wasps and the Origins of Ants and Bees." Current Biology, 27, (7) 1019–1025. https://doi.org/10.1016/j.cub.2017.03.027.
  • Branstetter, Michael G., Ješovnik, Ana, Sosa-Calvo, Jeffrey, Lloyd, Michael W., Faircloth, Brant C., Brady, Seán G., and Schultz, Ted R. 2017. "Dry habitats were crucibles of domestication in the evolution of agriculture in ants." Proceedings of the Royal Society B: Biological Sciences, 284, (1852). https://doi.org/10.1098/rspb.2017.0095.
  • Menezes, Rodolpho Santos Telles, Brady, Seán G., Carvalho, Antônio F., Del Lama, Marco A., and Costa, Marco A. 2017. "The roles of barriers, refugia, and chromosomal clines underlying diversification in Atlantic Forest social wasps." Scientific Reports, 7, (1). https://doi.org/10.1038/s41598-017-07776-7.
  • Blaimer, Bonnie B., LaPolla, John S., Branstetter, Michael G., Lloyd, Michael W., and Brady, Seán Gary. 2016. "Phylogenomics, biogeography and diversification of obligate mealybug-tending ants in the genus Acropyga." Molecular phylogenetics and evolution, 102 20–29. https://doi.org/10.1016/j.ympev.2016.05.030.
  • Blaimer, Bonnie B., Lloyd, Michael W., Guillory, Wilson X., and Brady, Seán Gary. 2016. "Sequence Capture and Phylogenetic Utility of Genomic Ultraconserved Elements Obtained from Pinned Insect Specimens." PLOS ONE, 11, (8) 1–20. https://doi.org/10.1371/journal.pone.0161531.
  • Mulcahy, Daniel G., Macdonald, Kenneth S., Brady, Seán G., Meyer, Christopher, Barker, Katharine B., and Coddington, Jonathan. 2016. "Greater than X kb: a quantitative assessment of preservation conditions on genomic DNA quality, and a proposed standard for genome-quality DNA." PeerJ, 4 e2528. https://doi.org/10.7717/peerj.2528.
  • Nygaard, Sanne, Hu, Haofu, Li, Cai, Schiott, Morten, Chen, Zhensheng, Yang, Zhikai, Xie, Qiaolin, Ma, Chunyu, Deng, Yuan, Dikow, Rebecca B., Rabeling, Christian, Nash, David R., Wcislo, William T., Brady, Seán Gary, Schultz, Ted R., Zhang, Guojie, and Boomsma, Jacobus J. 2016. "Reciprocal genomic evolution in the ant-fungus agricultural symbiosis." Nature Communications, 7 e12233. https://doi.org/10.1038/ncomms12233.
  • Ward, P. S., Brady, Seán G., Fisher, B. L., and Schultz, Ted R. 2016. "Phylogenetic classifications are informative, stable, and pragmatic: the case for monophyletic taxa." Insectes Sociaux, 63, (4) 489–492. https://doi.org/10.1007/s00040-016-0516-9.
  • Blaimer, Bonnie B., Brady, Seán Gary, Schultz, Ted R., and Fisher, Brian L. 2015. "Functional and phylogenetic approaches reveal the evolution of diversity in a hyper diverse biota." Ecography, 38, (9) 901–912. https://doi.org/10.1111/ecog.01370.
  • Blaimer, Bonnie B., Brady, Seán Gary, Schultz, Ted R., Lloyd, Michael W., Fisher, Brian L., and Ward, Philip S. 2015. "Phylogenomic methods outperform traditional multi-locus approaches in resolving deep evolutionary history: a case study of formicine ants." BMC Evolutionary Biology, 15, (1) 271. https://doi.org/10.1186/s12862-015-0552-5.
  • Faircloth, Brant C., Branstetter, Michael G., White, Noor D., and Brady, Seán Gary. 2015. "Target enrichment of ultraconserved elements from arthropods provides a genomic perspective on relationships among Hymenoptera." Molecular Ecology Resources, 15, (3) 489–501. https://doi.org/10.1111/1755-0998.12328.
  • Menezes, Rodolpho Santos Telles, Brady, Seán Gary, Carvalho, Antônio Freire, Del Lama, Marco Antonio, and Costa, Marco Antônio. 2015. "Molecular Phylogeny and Historical Biogeography of the Neotropical Swarm-Founding Social Wasp Genus Synoeca (Hymenoptera: Vespidae)." PloS One, 10, (3) 1–15. https://doi.org/10.1371/journal.pone.0119151.
  • Schultz, Ted R., Sosa-Calvo, Jeffrey, Brady, Seán Gary, Lopes, Cauê T., Mueller, Ulrich G., Bacci, Mauricio, and Vasconcelos, Heraldo L. 2015. "The Most Relictual Fungus-Farming Ant Species Cultivates the Most Recently Evolved and Highly Domesticated Fungal Symbiont Species." American Naturalist, 185, (5) 693–703. https://doi.org/10.1086/680501.
  • Smith, Chris R., Cahan, Sara Helms, Kemena, Carsten, Brady, Seán Gary, Yang, Wei, Bornberg-Bauer, Erich, Eriksson, Ti, Gadau, Juergen, Helmkampf, Martin, Gotzek, Dietrich, Miyakawa, Misato Okamoto, Suarez, Andrew V., and Mikheyev, Alexander. 2015. "How do genomes create novel phenotypes? Insights from the loss of the worker caste in ant social parasites." Molecular biology and evolution, 32, (11) 2919–2931. https://doi.org/10.1093/molbev/msv165.
  • Ward, Philip S., Brady, Seán Gary, Fisher, Brian L., and Schultz, Ted R. 2015. "The evolution of myrmicine ants: Phylogeny and biogeography of a hyperdiverse ant clade." Systematic Entomology, 40, (1) 61–81. https://doi.org/10.1111/syen.12090.
  • Brady, Seán Gary, Fisher, Brian L., Schultz, Ted R., and Ward, Philip S. 2014. "The rise of army ants and their relatives: diversification of specialized predatory doryline ants." BMC Evolutionary Biology, 14, (1). https://doi.org/10.1186/1471-2148-14-93.
  • Buffington, Matthew L., Perkovsky, Evgeny E., and Brady, Seán Gary. 2014. "The Description of Rovnoeucoila tympanomorpha Buffington and Perkovsky, a New Genus and Species of Fossil Eucoiline, with Observations on the Asynchronous Evolution of Diglyphosematini (Hymenoptera: Figitidae: Eucoilinae)." Proceedings of the Entomological Society of Washington, 116, (3) 243–254. https://doi.org/10.4289/0013-8797.116.3.243.
  • Rightmyer, Molly G., Griswold, Terry, and Brady, Seán Gary. 2013. "Phylogeny and systematics of the bee genus Osmia (Hymenoptera: Megachilidae) with special emphasis on North American Melanosmia: New subgenera, synonymies, and nesting biology revisited." Systematic Entomology, 38, (3) 561–576. https://doi.org/10.1111/syen.12013.
  • Almeida, Eduardo A. B., Pie, Marcio R., Brady, Seán Gary, and Danforth, Bryan N. 2012. "Biogeography and diversification of colletid bees (Hymenoptera: Colletidae): emerging patterns from the southern end of the world." Journal of Biogeography, 39, (3) 526–544. https://doi.org/10.1111/j.1365-2699.2011.02624.x.
  • Buffington, Matthew L., Brady, Seán Gary, Morita, Shelah I., and van Noort, Simon. 2012. "Divergence estimates and early evolutionary history of Figitidae (Hymenoptera: Cynipoidea)." Systematic Entomology, 37, (2) 287–304. https://doi.org/10.1111/j.1365-3113.2012.00617.x.
  • Gibbs, Jason, Brady, Seán Gary, Kanda, Kojun, and Danforth, Bryan N. 2012. "Phylogeny of halictine bees supports a shared origin of eusociality for Halictus and Lasioglossum (Apoidea: Anthophila: Halictidae)." Molecular phylogenetics and evolution, 65, (3) 926–939. https://doi.org/10.1016/j.ympev.2012.08.013.
  • Gotzek, Dietrich, Brady, Seán Gary, Kallal, Robert J., and LaPolla, John S. 2012. "The Importance of Using Multiple Approaches for Identifying Emerging Invasive Species: The Case of the Rasberry Crazy Ant in the United States." PLoS ONE, 7, (9) 1–10. https://doi.org/10.1371/journal.pone.0045314.
  • LaPolla, John S., Kallal, Robert J., and Brady, Seán Gary. 2012. "A new ant genus from the Greater Antilles and Central America, Zatania (Hymenoptera: Formicidae), exemplifies the utility of male and molecular character systems." Systematic Entomology, 37, (1) 200–214. https://doi.org/10.1111/j.1365-3113.2011.00605.x.
  • Mehdiabadi, Natasha J., Mueller, Ulrich G., Brady, Seán Gary, Himler, Anna G., and Schultz, Ted R. 2012. "Symbiont fidelity and the origin of species in fungus-growing ants." Nature Communications, 3 840. https://doi.org/10.1038/ncomms1844.
  • Rinkevich, Frank D., Hedtke, Shannon M., Leichter, Cheryl A., Harris, Sarah A., Su, Cathy, Brady, Seán Gary, Taskin, Vatan, Oiu, Xinghui, and Scott, Jeffery G. 2012. "Multiple Origins of kdr-type Resistance in the House Fly, Musca domestica." PLoS ONE, 7, (12) 1–6. https://doi.org/10.1371/journal.pone.0052761.
  • Seltmann, Katja, Yoder, Matthew, Miko, Istvan, Forshage, Mattias, Bertone, Matthew, Agosti, Donat, Austin, Andrew, Balhoff, James, Borowiec, Marek, Brady, Seán Gary, Broad, Gavin, Brothers, Denis, Burks, Roger, Buffington, Matthew L., Campbell, Heather, Dew, Kelly, Ernst, Andrew, Fernandez-Triana, Jose, Gates, Michael, Gibson, Gary, Jennings, John, Johnson, Norman, Karlsson, Dave, Kawada, Ricardo, Krogmann, Lars et al. 2012. "A hymenopterists’ guide to the Hymenoptera Anatomy Ontology: utility, clarification, and future directions." Journal of Hymenoptera Research, 27 67–88. https://doi.org/10.3897/jhr.27.2961.
  • Brady, Seán Gary. 2011. [Book review] "The Leafcutting Ants: Civilization by Instinct by B. Hölldobler and E.O. Wilson." The Quarterly Review of Biology, 86, (3), 236–237. https://doi.org/10.1086/661128.
  • Brady, Seán Gary. 2011. "Effects of fossil calibration uncertainty on divergence dating in ants and bees." American Entomologist, 57, (1) 56–57.
  • Brady, Seán Gary, Litman, Jessica, and Danforth, Bryan N. 2011. "Rooting phylogenies using gene duplications: an empirical example from the bees (Apoidea)." Molecular phylogenetics and evolution, 60 295–304.
  • LaPolla, John S., Brady, Seán Gary, and Shattuck, Steve O. 2011. "Monograph of Nylanderia (Hymenoptera: Formicidae) of the World: An introduction to the systematics and biology of the genus." Zootaxa, 3110 1–9.
  • Droege, Sam, Rightmyer, Molly, Sheffield, Cory, and Brady, Seán Gary. 2010. "New synonymies in the bee genus Nomada from North America (Hymenoptera: Apidae)." Zootaxa, 2661 1–32.
  • LaPolla, John S., Brady, Seán Gary, and Shattuck, Steven O. 2010. "Phylogeny and taxonomy of the Prenolepis genus-group of ants (Hymenoptera: Formicidae)." Systematic Entomology, 35, (1) 118–131. https://doi.org/10.1111/j.1365-3113.2009.00492.x.
  • LaPolla, John S., Brady, Seán Gary, and Shattuck, Steven O. 2010. "Designation of a neotype for Paratrechina currens Motschoulsky, 1863." Notulae Naturae, 481 1–2.
  • Ward, Philip S., Brady, Seán Gary, Fisher, Brian L., and Schultz, Ted R. 2010. "Phylogeny and Biogeography of Dolichoderine Ants: Effects of Data Partitioning and Relict Taxa on Historical Inference." Systematic Biology, 59, (3) 342–362. https://doi.org/10.1093/sysbio/syq012.
  • Bradley, Timothy J., Briscoe, Adriana, Brady, Seán Gary, Contreras, Heidy L., Danforth, Bryan N., Dudley, Robert K., Grimaldi, David, Harrison, Jon F., Kaiser, J. A., Merlin, Christine, Reppert, Steven M., Vanden Brooks, John M., and Yanoviak, Stephen P. 2009. "Episodes in insect evolution." Integrative and Comparative Biology, 49, (5) 590–606. https://doi.org/10.1093/icb/icp043.
  • Brady, Seán Gary, Larkin, L., and Danforth, Bryan N. 2009. "Bees, ants, and stinging wasps (Aculeata)." In The Timetree of Life. Hedges, S. B. and Kumar, S., editors. 264–269. New York: Oxford University Press.
  • Kozaki, Toshinori, Brady, Seán Gary, and Scott, Jeffrey G. 2009. "Frequencies and evolution of organophosphate insensitive acetylcholinesterase alleles in laboratory and field populations of the house fly, Musca domestica L." Pesticide biochemistry and physiology, 95, (1) 6–11. https://doi.org/10.1016/j.pestbp.2009.04.015.
  • Sosa-Calvo, Jeffrey, Brady, Seán Gary, and Schultz, Ted R. 2009. "The Gyne of the Enigmatic Fungus-Farming Ant Species Mycetosoritis explicata." Journal of Hymenoptera Research, 18, (1) 113–120.
  • Ward, Philip S. and Brady, Seán Gary. 2009. "Rediscovery of the ant genus Amyrmex Kusnezov (Hymenoptera: Formicidae) and its transfer from Dolichoderinae to Leptanilloidinae." Zootaxa, 2063 46–54.
  • Wernegreen, Jennifer J., Kauppinen, Seth N., Brady, Seán Gary, and Ward, Philip S. 2009. "One nutritional symbiosis begat another: Phylogenetic evidence that the ant tribe Camponotini acquired Blochmannia by tending sap-feeding insects." BMC Evolutionary Biology, 9 292.
  • LaPolla, John S., Burwell, Chris, Brady, Seán Gary, and Miller, Douglass R. 2008. "A new ortheziid (Hemiptera: Coccoidea) from Australia associated with Acropyga myops Forel (Hymenoptera: Formicidae) and a key to Australian Ortheziidae." Zootaxa, (1946) 55–68.
  • Schultz, Ted R. and Brady, Seán Gary. 2008. "Major evolutionary transitions in ant agriculture." Proceedings of the National Academy of Sciences of the United States of America, 105, (14) 5435–5440. https://doi.org/10.1073/pnas.0711024105.
  • Brady, Seán Gary, Schultz, Ted R., Fisher, Brian L., and Ward, Philip S. 2006. "Evaluating alternative hypotheses for the early evolution and diversification of ants." Proceedings of the National Academy of Sciences of the United States of America, 103, (48) 18172–18177. https://doi.org/10.1073/pnas.0605858103.
  • Brady, Seán Gary, Sipes, S., Pearson, A., and Danforth, B. N. 2006. "Recent and simultaneous origins of eusociality in halictid bees." Proceedings of the Royal Society B: Biological Sciences, 273 1643–1649. https://doi.org/10.1073/pnas.0510466103.
  • Danforth, B. N., Sipes, S., Fang, J., and Brady, Seán Gary. 2006. "The history of early bee diversification based on five genes plus morphology." Proceedings of the National Academy of Sciences of the United States of America, 103, (41) 15118–15123.
  • Rinkevich, Frank D., Zhang, L., Hamm, R. L., Brady, Seán Gary, Lazzaro, B. P., and Scott, J. G. 2006. "Frequencies of the pyrethroid resistance alleles of Vssc1 and CYP6D1 in house flies from the eastern United States." Insect molecular biology, 15, (2) 157–167. https://doi.org/10.1111/j.1365-2583.2006.00620.x.
  • Brady, Seán Gary and Ward, P. S. 2005. "Morphological phylogeny of army ants and other dorylomorphs (Hymenoptera: Formicidae)." Systematic Entomology, 30 593–618.
  • Ward, P. S., Brady, Seán Gary, Fisher, B. L., and Schultz, Ted R. 2005. "Assembling the ant "Tree of Life"." Myrmecologische Nachrichten, 7 87–90.
  • Brady, Seán Gary and Danforth, B. N. 2004. "Recent intron gain in elongation factor-1A of colletid bees (Hymenoptera: Colletidae)." Molecular Biology and Evolution, 21 691–696.
  • Danforth, B. N., Brady, Seán Gary, Sipes, S. D., and Pearson, A. 2004. "Single copy nuclear genes recover Cretaceous age divergences in bees." Systematic Biology, 53 309–326.

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