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1 January 2002 Evidence of Introgression between Masked Shrews (Sorex cinereus), and Prairie Shrews (S. haydeni), in Minnesota
ANJA K. BRUNET, ROBERT M. ZINK, KRISTIN M. KRAMER, RACHELLE C. BLACKWELL-RAGO, SHANNON L. FARRELL, THERESA V. LINE, ELMER C. BIRNEY
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Abstract

Several studies support specific status for the prairie form of Sorex cinereus, designated as S. haydeni. Evidence for introgression between these species has been found in Alberta, despite significant sequence differences (>15%) in mitochondrial DNA. Using mtDNA and morphological criteria, we identified to species 94 masked shrews to assess the distribution of these two species in Minnesota and to examine the extent of introgression in zones of sympatry. Only four specimens scored genetically and morphologically as S. haydeni, indicating a restricted distribution. Four specimens had incongruent genetic and morphological identifications, suggesting introgression between the two species.

ANJA K. BRUNET, ROBERT M. ZINK, KRISTIN M. KRAMER, RACHELLE C. BLACKWELL-RAGO, SHANNON L. FARRELL, THERESA V. LINE, and ELMER C. BIRNEY "Evidence of Introgression between Masked Shrews (Sorex cinereus), and Prairie Shrews (S. haydeni), in Minnesota," The American Midland Naturalist 147(1), 116-122, (1 January 2002). https://doi.org/10.1674/0003-0031(2002)147[0116:EOIBMS]2.0.CO;2
Accepted: 1 September 2001; Published: 1 January 2002
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