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Presented at the NABS Annual meeting, Pittsburgh, Pennsylvania, 2002
in Population Distribution: Studies of Dispersal, Behavior, and Genetics I
USING DNA MARKERS TO INVESTIGATE INTERBASIN RELATIONSHIPS AND DISPERSAL OF STONEFLIES.
J.S. Kauwe1, D.K. Shiozawa1,2, and R.P. Evans1. 1Department of Zoology, Brigham Young University, Provo, UT 84602, 2Monte L. Bean Life Science Museum, Brigham Young University, Provo, UT 84602
DNA markers provide a varying amount of resolution regarding phylogeographic relationships. While some genes such as the 28S ribosomal subunit and H3 (histone) provide resolution at the level of family and genus in stoneflies, they may be too conserved to provide information at the species level. Such genes can be useful for determining dispersal events at a continental or intercontinental scale (deep phylogeographic relationships) but may not provide information on more recent interbasin dispersal events (i.e., Pliocene or more recently). Other genes known to evolve at a more rapid rate can be more informative in these cases. We are comparing the resolution of a series of genes, both conserved and variable in deciphering the relationships among populations of the stonefly Pteronarcys californica in drainages in and around the Great Basin.
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