Phylogeography and taxonomic revision of Nelson's pocket mouse (Chaetodipus nelsoni)

Chaetodipus nelsoni occurs on rocky substrates across the Mexican Altiplano. We investigated phylogeographic diversity within the species using morphologic, karyotypic, and molecular data. Data from nuclear (AFLP) and mitochondrial DNA support three distinct genetic groups with minimal substructurin...

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Bibliographic Details
Published in:	Journal of mammalogy Vol. 100; no. 6; pp. 1847 - 1864
Main Authors:	Neiswenter, Sean A., Hafner, David J., Light, Jessica E., Cepeda, Gabriella D., Kinzer, Kathleen C., Alexander, Lois F., Riddle, Brett R.
Format:	Journal Article
Language:	English
Published:	American Society of Mammalogists 19-12-2019 Oxford University Press
Subjects:	amplified fragment length polymorphisms chromosomes FEATURE ARTICLES Heteromyidae Mexican Altiplano mitochondrial DNA morphometrics
Online Access:	Get full text
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Summary:	Chaetodipus nelsoni occurs on rocky substrates across the Mexican Altiplano. We investigated phylogeographic diversity within the species using morphologic, karyotypic, and molecular data. Data from nuclear (AFLP) and mitochondrial DNA support three distinct genetic groups with minimal substructuring coincident with biogeographic barriers previously identified in the Chihuahuan Desert and drainage basins of the Altiplano. We examined the morphological and karyotypic data in light of the molecular data. The results support recognition of three species within the currently accepted widespread C. nelsoni: 1) C. nelsoni restricted to a distribution centered on the El Salado River Basin; 2) elevation of C. n. collis to species, with two subspecies: one centered on Trans-Pecos Texas, the other on the Mapimí Basin (new subspecies); and 3) recognition of a new species, C. durangae, centered on the Nazas Basin and upper Río Mezquital drainage.
ISSN:	0022-2372 1545-1542
DOI:	10.1093/jmammal/gyz130