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Please use this identifier to cite or link to this item: http://hdl.handle.net/1993/3212

Title: The genetic diversity of brook lampreys genus Lampetra (Petromyzontidae) along the Pacific coast of North America
Authors: Boguski, David Andrew
Supervisor: Docker, Margaret (Biological Sciences)
Examining Committee: Ford, Bruce (Biological Sciences) Mooi, Randy (Biological Sciences) Roughley, Rob (Entomology)
Graduation Date: October 2009
Keywords: phylogeny
phylogeography
cryptic species
mitochondrial
nuclear DNA
paired species
cytochrome b
microsatellites
conservation
Issue Date: 14-Sep-2009
Abstract: The number of non-parasitic (brook) lamprey species in the genus Lampetra is underestimated since isolated populations are generally considered one species due to their relatively conserved body form. The phylogeographic and phylogenetic structure was estimated among and within Lampetra species along the Pacific coast of North America (presumed to represent Lampetra richardsoni; L. pacifica – which is currently regarded as a junior synonym of L. richardsoni; L. ayresii; and L. hubbsi) using up to three mitochondrial and three nuclear genetic markers. These data show that L. richardsoni as currently recognized is polyphyletic when lampreys (some of which show up to 8 K2P% sequence divergence) from Siuslaw River and Fourmile Creek (Oregon) and Mark West, Paynes, and Kelsey creeks (California) are included; Lampetra pacifica is a valid species; the population from Kelsey Creek almost certainly represents a new species; and those from Siuslaw, Fourmile, and Mark West may also be distinct species.
URI: http://hdl.handle.net/1993/3212
Appears in Collection(s):FGS - Electronic Theses & Dissertations (Public)

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