Abstract
The federally endangered Alabama lampmussel (Lampsilis virescens) has been presumed extirpated in the Emory river, TN for almost four decades. In the fall of 2011, three specimens that were morphologically identified as L. virescens (based on external shell morphology) were collected from the Emory river. The significance of such a find led biologists to take a noninvasive tissue sample from each individual for genetic confirmation. Approximately 400 nucleotides of the mtDNA COI gene were sequenced for each individual along with two samples of L. virescens from the Paint Rock river. DNA sequence data was also obtained from Genbank for other Lampsilis sp. Maximum parsimony and Bayesian phylogenetic methods revealed strong support for a clade consisting of putative Emory river L. virescens and known L. virescens (Paint Rock river origin) that was sister to all other taxa. These results indicated that the individuals collected from the Emory river were indeed L. virescens.
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