Andrew Whitehead (PI)

Andrew Whitehead is the lab PI, and a Professor in the Department of Environmental Toxicology.  Dr. Whitehead earned his B.Sc. from the University of Guelph in Ontario, Canada, and his Ph.D. from the University of California at Davis (with Dr. Susan Anderson at Bodega Marine Lab).  He then went on to do post-doctoral research at the University of Miami Rosenstiel School of Marine and Atmospheric Science (with Dr. Douglas Crawford) , and was an Assistant then Associate Professor in the Department of Biological Sciences at LSU before moving to UC Davis in summer 2012.  Research interests include evolutionary and ecological functional genomics, population genomics, conservation genetics, stress physiology, and ecotoxicology.  He is a member of the Population Biology Graduate Group, the Graduate Group in Ecology (Chair of the Ecological Genomics and Genetics AOE), the Integrative Genetics and Genomics Graduate Group, and the Pharmacology and Toxicology Graduate Group.  He is a member of the UC Davis Center for Population Biology, and the Coastal and Marine Sciences Institute. Email:

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Jen Roach (Research Associate)

Jen Roach is a Research Associate and Lab Manager of the Whitehead lab.  Jen earned her B. Sc. from University of California Davis and her M.Sc. from Colorado State University where she studied the genetic structure of black-tailed prairie dog metapopulations (with Dr. Mike Antolin and Dr. Bea Van Horne). She went on to work as a research associate and lab manager with Dr. Bernie May at UC Davis and then with Dr. Douglas Crawford at the University of Miami’s Rosenstiel School of Marine and Atmospheric Science. She has been working for Dr. Whitehead since August 2005. Her research interests include conservation genetics, population genetics, and evolutionary and ecological functional genomics.  Email:


Joanna Griffiths (Postdoc)

Joanna Griffiths (personal website) is a postdoctoral researcher (co-advised by Dr. Nann Fangue). Before joining the lab, she received her PhD at Louisiana State University with Dr. Morgan Kelly. During her PhD, Joanna worked on three species of marine invertebrates (corals, oysters, and copepods) to determine their evolutionary responses to climate change. At UC Davis, she is using quantitative genetics and physiology to explore the mechanistic basis of variation in thermal tolerance of hatchery-reared and wild Delta smelt, a critically endangered fish. Email:

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Tony Gill (on bottom) (Ph.D. student)

Tony Gill (personal website) is a Ph.D. student in Integrative Genetics and Genomics Graduate Group. He received his B.A. from Purdue University and an M.S. in Science-Medical Writing from Johns Hopkins University, Krieger School of Arts and Sciences. He spent seven years as a molecular biologist generating transgenic zebrafish models to study mutations in leukemia in Dr. Peter Aplan’s laboratory at the National Cancer Institute in Bethesda Maryland. He went on to work as a laboratory manager for Dr. Adam Leaché at the University of Washington in the development of sequencing technologies for comparative genomics. Before joining the Whitehead lab in 2017, Tony came from the Northwest Fisheries Science Center in Seattle where he was introduced to environmental toxicology under the mentorship of Dr. John Incardona and Dr. Nathanial Sholtz. He is broadly interested in applying evolutionary functional genomics to questions in ecotoxicology. For his dissertation work Tony is integrating comparative genomics and physiology to determine the genetic mechanisms underlying the collapse and lack of recovery of Prince William Sound herring. Email: Twitter: @tonygill3


Nicole McNabb (Ph.D. student)

Nicole McNabb (personal website) is a Ph.D. student in the Pharmacology and Toxicology Graduate Group. She earned her B.Sc. in Biology from Maryville College and M.Sc. in Marine Biology from the College of Charleston, where she investigated the potential estrogenic activity and effects of the oil dispersant Corexit 9500 on sex determination in the American alligator and diamondback terrapin (with Dr. Satomi Kohno and Dr. Louis J. Guillette, Jr.). Nicole then went on to work as a contract research associate with Dr. Shaun McCullough at the U.S. EPA Clinical Research Branch in Chapel Hill, NC, where she was involved in the development of an organotypic model to assess response to inhaled toxicants in the airway. Broadly, she is interested in using genomics tools and approaches to answer questions about how populations will respond to anthropogenic environmental contaminants, as well as the interconnection between human and environmental health. Nicole’s current research focuses on the multigenerational impacts of dietary exposure to the flame retardant, BDE-99, in Atlantic killifish (Fundulus heteroclitus). Email:


Anthony Tercero (Ph.D. student)

Anthony (Tony) Tercero (personal website) is a PhD student in the Integrative Genetics and Genomics Graduate Group and co-advised by Dr. Anne Todgham. He earned his B.S and M.S from Sonoma State University where he studied the genetic underpinnings of the altered heat shock response in Antarctic fish. Anthony’s broad research interests seek to understand mechanisms that facilitate phenotypic variation and adaptation of marine taxa in response to natural and anthropogenic stress. More specifically, Anthony wants to understand the capacity marine organisms have for epigenetic and genetic alterations and the interplay between those mechanisms under current and future environmental conditions. These insights can be applied to aquaculture, biomonitoring, biological invasions, and conservation, and hopefully improve our ability to detect, explain, and predict responses of marine taxa to global change. Email:



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