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Differentiation of white-footed mice (Peromyscus leucopus) and deer mice (Peromyscus maniculatus) of the Upper Midwest using PCR melt curve analysis

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Abstract

Cryptic species pairs including white-footed mice, Peromyscus leucopus, and deer mice, Peromyscus maniculatus, are difficult to identify using morphological and laboratory techniques. To improve rapid and accurate determination of these species, we developed an assay reliant on differences in PCR-product melt curves (MCA). We differentiated 235 P. maniculatus gracilis and 78 P. leucopus using our assay. We compared this to morphological identification using ear length, which also provided reliable species identification. We find that MCA accurately differentiates these species and provides more reliable identifications than certain morphological measures, therefore making our approach ideal for identification of these species.

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Acknowledgments

The Eck Institute for Global Health and UNDERC supported this research. Andrew Bantel and Mary Oswald assisted in laboratory procedures. Samantha Driscoll, Lauren Eckert, Chelsea Gyure, and Matt Igleski helped collect samples.

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Correspondence to M. J. Cramer.

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Ridenhour, B.J., Cramer, M.J. Differentiation of white-footed mice (Peromyscus leucopus) and deer mice (Peromyscus maniculatus) of the Upper Midwest using PCR melt curve analysis. Conservation Genet Resour 7, 29–31 (2015). https://doi.org/10.1007/s12686-014-0324-3

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  • DOI: https://doi.org/10.1007/s12686-014-0324-3

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