Document Type
Article
Publication Date
2003
Publication Title
Journal of Great Lakes Research
Abstract
The continued loss of freshwater unionid mussel species in the Great Lakes region, and particularly from Lake Erie, raises the question of how much phylogenetic and genetic variation remain in the watershed. The introduction of molecular markers into population biology offers one reproducible technique for assessing this variation. A fragment of the 16S rRNA gene of mitochondrial DNA has previously been used to infer phylogenetic relationships in the family Unionidae. Therefore, we reanalyzed these published molecular data with the addition of 12 species from the Cuyahoga and Rocky rivers in northeast Ohio. Both rivers drain to Lake Erie. The species assessed were Pyganodon grandis, Lasmigona complanata, Lasmigona compressa, Lampsilis radiata luteola, Fusconaia flava, Potamilus alatus, Strophitus undulatus, and Toxolasma parvus, for which published data were unavailable, and northern specimens of four wide ranging species, Lasmigona costata, Leptodea fragilis, Utterbackia imbecillis, and Quadrula quadrula. The resulting phylogenetic tree remained consistent with the accepted major taxonomic divisions in the Unionidae, and it indicates that these rivers still contain a phylogenetically diverse assemblage. However, the most abundant species all are members of the Anodontinae. Intraspecific variation in these unionid species was low, even where results were compared to published sequences on individuals from distant watersheds. One exception was a unique haplotype of Q. quadrula that differed at more base sites than is generally found for many congeneric species.
DOI
10.1016/S0380-1330(03)70436-5
Version
Postprint
Publisher's Statement
NOTICE: this is the author’s version of a work that was accepted for publication in Journal of Great Lakes Research. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Journal of Great Lakes Research, 29, 2, (2003) DOI 10.1016/S0380-1330(03)70436-5
Recommended Citation
Krebs RA, Vlasceanu RN, Tevesz MJS. 2003. An analysis of diversity in freshwater mussels (bivalvia: Unionidae) of the cuyahoga and rocky river watersheds (ohio, USA) based on the 16S rRNA gene. J Great Lakes Res 29(2):307-16.
Volume
29
Issue
2
Comments
The work was supported in part by an NSF small grant for exploratory research (DEB-0002305), by a fellowship from the Program for Excellence in Risk Analysis in the Center for Environmental Science, Technology and Policy, CSU, to RAK, and by a supplemental EFFRD award to MJST.