Sophie Archambeault Headshot

Sophie Archambeault

Assistant Professor

Full-Time Faculty
Harney Science Center 370


Professor Archambeault is interested in how populations of organisms evolve and adapt to new environments. Her research focuses on identifying the genetic variants (mutations) that drive evolution, characterizing how these variants affect gene function, linking these variants to changes in development and phenotype, and ultimately understanding the selection pressures that favor these evolutionary changes. Professor Archambeault uses the threespine stickleback, a native Bay Area fish, to address these questions.


  • Evolution
  • Genetics
  • Molecular biology

Research Areas

  • Genetics of adaptation, specifically in the threespine stickleback fish
  • Evolution and genetics of development
  • Molecular evolution


  • University of Washington, PhD in Molecular and Cell Biology, 2019
  • San Francisco State University, MS in Biology, 2015
  • Connecticut College, BA in Zoology, 2003

Selected Publications

  • Archambeault SL, Durston DJ, Wan A, El-Sabaawi RW, Matthews B, Peichel CL (2020). "Phosphorus limitation does not drive loss of bony lateral plates in freshwater stickleback (Gasterosteus aculeatus)." Evolution. 4(4), 282-301.

  • Archambeault SL, Bärtschi LR, Merminod AD, Peichel CL (2020). "Adaptation via pleiotropy and linkage: association mapping reveals a complex genetic architecture within the stickleback Eda locus." Evolution Letters. 74(9), 2088-2104.

  • Shanfelter AF, Archambeault SL, White MA (2019). "Divergent fine-scale recombination landscapes between a freshwater and a marine population of threespine stickleback fish." Genome Biology and Evolution, 11(6), 1552-1572.

  • O'Hanlon KN, Dam RA, Archambeault SL, Berg CA (2018). "Two Drosophilids exhibit distinct EGF-pathway patterns in oogenesis." Development, Genes and Evolution, 228(1), 31-48.

  • Greenwood AK, Mills MG, Wark AR, Archambeault SL, Peichel CL (2016). "Evolution of schooling behavior in threespine sticklebacks is shaped by the Eda gene." Genetics, 203(2), 677-681.