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Cophylogeny on a fine scale: Geomydoecus chewing lice and their pocket gopher hosts, Pappogeomys bulleri.
J Parasitol. 2012 Apr; 98(2):262-70.JP

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.

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Authors+Show Affiliations

Demastes JW
Department of Biology, University of Northern Iowa, Cedar Falls, Iowa 50614, USA. jim.demastes@uni.edu
Spradling TA
No affiliation info available
Hafner MS
No affiliation info available
Spies GR
No affiliation info available
Hafner DJ
No affiliation info available
Light JE
No affiliation info available

MeSH

AnimalsBase SequenceBayes TheoremDNA, MitochondrialFemaleGophersHost SpecificityIschnoceraLice InfestationsLikelihood FunctionsMaleMolecular Sequence DataPhylogenyPolymerase Chain ReactionRodent DiseasesSequence AlignmentSequence Analysis, DNA

Pub Type(s)

Journal Article
Research Support, U.S. Gov't, Non-P.H.S.

Language

eng

PubMed ID

22010942

Citation

Demastes, James W., et al. "Cophylogeny On a Fine Scale: Geomydoecus Chewing Lice and Their Pocket Gopher Hosts, Pappogeomys Bulleri." The Journal of Parasitology, vol. 98, no. 2, 2012, pp. 262-70.
Demastes JW, Spradling TA, Hafner MS, et al. Cophylogeny on a fine scale: Geomydoecus chewing lice and their pocket gopher hosts, Pappogeomys bulleri. J Parasitol. 2012;98(2):262-70.
Demastes, J. W., Spradling, T. A., Hafner, M. S., Spies, G. R., Hafner, D. J., & Light, J. E. (2012). Cophylogeny on a fine scale: Geomydoecus chewing lice and their pocket gopher hosts, Pappogeomys bulleri. The Journal of Parasitology, 98(2), 262-70. https://doi.org/10.1645/GE-2904.1
Demastes JW, et al. Cophylogeny On a Fine Scale: Geomydoecus Chewing Lice and Their Pocket Gopher Hosts, Pappogeomys Bulleri. J Parasitol. 2012;98(2):262-70. PubMed PMID: 22010942.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Cophylogeny on a fine scale: Geomydoecus chewing lice and their pocket gopher hosts, Pappogeomys bulleri. AU - Demastes,James W, AU - Spradling,Theresa A, AU - Hafner,Mark S, AU - Spies,Gretchen R, AU - Hafner,David J, AU - Light,Jessica E, Y1 - 2011/10/19/ PY - 2011/10/21/entrez PY - 2011/10/21/pubmed PY - 2012/6/23/medline SP - 262 EP - 70 JF - The Journal of parasitology JO - J Parasitol VL - 98 IS - 2 N2 - 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. SN - 1937-2345 UR - https://www.unboundmedicine.com/medline/citation/22010942/Cophylogeny_on_a_fine_scale:_Geomydoecus_chewing_lice_and_their_pocket_gopher_hosts_Pappogeomys_bulleri_ L2 - https://doi.org/10.1645/GE-2904.1 DB - PRIME DP - Unbound Medicine ER -
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