Cypriniform Diversity
Outreach and Educaction

Current Projects

Project: Evolutionary Relationships and Biogeography of Phoxinus (Teleostei; Cyprinidae)

Data Needed: Cyt. b, S7, Control Region Rag1, ND4-ND5, RH

Taxa Needed: European and Asian Phoxinus

Current Collaborators: R. L. Mayden, R. M. Wood, and A. Bufalino, Saint Louis University, St. Louis, Missouri, USA; R. M. Strange, Great Lakes Genetics Laboratory, Oregon, OH, USA; P. M. Harris, The University of Alabama, Tuscaloosa, Alabama, USA; A. M. Simons, University of Minnesota, St. Paul, Minnesota, USA.

Contact Person: Richard L. Mayden (

General Description: The genus Phoxinus is holarctic in distribution and contains at least 20 species that are both beautifully colored when in breeding condition and possess interesting distributions and behaviors for comparative evolutionary studies.  Previous studies of these fishes have focused entirely on morphological variation to develop phylogenetic hypotheses and have been limited in scope with respect to the species examined. 

In this study we hope to examine all species of Phoxinus and multiple samples of each species for six nuclear and mitochondrial genes.  The resulting phylogenetic analysis will be used to test previous theories of taxonomy (Phoxinus, Chrosomus), examine biogeographic hypotheses, and molecular evolution in this holarctic clade. Collaborators are welcome to join us in this project through efforts to sequence any of the identified genes (except Cyt. b) or providing materials of the needed species.

If you are interested in joining this project please contact the identified person and outline your intended contributions so that we may make rapid progress on resolving the phylogeny and examine the comparative evolution and biogeography of these fishes.
Questions or comments? Contact Director, Dr. Richard Mayden

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