NDLI: Cophylogeny on a fine scale: Geomydoecus chewing lice and their pocket gopher hosts, Pappogeomys bulleri.

Content Provider	World Health Organization (WHO)-Global Index Medicus
Author	Demastes, James W. Spradling, Theresa A. Hafner, Mark S. Spies, Gretchen R. Hafner, David J. Light, Jessica E.
Description	Country affiliation: United States Author Affiliation: Demastes JW ( Department of Biology, University of Northern Iowa, Cedar Falls, Iowa 50614, USA. jim.demastes@uni.edu)
Abstract	Many species of pocket gophers and their ectoparasitic chewing lice have broadly congruent phylogenies, indicating a history of frequent codivergence. For a variety of reasons, phylogenies of codiverging hosts and parasites are expected to be less congruent for more recently diverged taxa. This study is the first of its scale in the pocket gopher and chewing louse system, with its focus entirely on comparisons among populations within a single species of host and 3 chewing louse species in the Geomydoecus bulleri species complex. We examined mitochondrial DNA from a total of 46 specimens of Geomydoecus lice collected from 11 populations of the pocket gopher host, Pappogeomys bulleri. We also examined nuclear DNA from a subset of these chewing lice. Louse phylogenies were compared with a published pocket gopher phylogeny. Contrary to expectations, we observed a statistically significant degree of parallel cladogenesis in these closely related hosts and their parasites. We also observed a higher rate of evolution in chewing louse lineages than in their corresponding pocket gopher hosts. In addition, we found that 1 louse species (Geomydoecus burti) may not be a valid species, that subspecies within G. bulleri are not reciprocally monophyletic, and that morphological and genetic evidence support recognition of a new species of louse, Geomydoecus pricei.
File Format	HTM / HTML
ISSN	00223395
Issue Number	2
Volume Number	98
e-ISSN	19372345
Journal	Journal of Parasitology
Language	English
Publisher	American Society of Parasitologists
Publisher Date	2012-04-01
Publisher Place	United States
Access Restriction	Subscribed
Subject Keyword	Discipline Parasitology Gophers Parasitology Ischnocera Classification Lice Infestations Veterinary Phylogeny Rodent Diseases Animals Base Sequence Bayes Theorem Dna, Mitochondrial Chemistry Isolation & Purification Female Genetics Host Specificity Anatomy & Histology Likelihood Functions Male Molecular Sequence Data Polymerase Chain Reaction Sequence Alignment Sequence Analysis, Dna Journal Article Research Support, U.s. Gov't, Non-p.h.s.
Content Type	Text
Resource Type	Article
Subject	Medicine Parasitology Ecology, Evolution, Behavior and Systematics

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