A re-examination of the molecular systematics and phylogeography of taxa of the Peromyscus aztecus species group, with comments on the distribution of P. winkelmanni

C. William Kilpatrick, Nelish Pradhan, Ryan W Norris

Resumen


The objectives of this study are to examine the available molecular data from the mitochondrial cytochrome-b gene (Cytb) and a concatenated dataset with this gene and two nuclear introns (Adh-1-I2 and Fgb-I7) to reexamine the systematic and phylogeographic conclusions reached by Sullivan et al. (1997) concerning the Peromyscus aztecus species group.  The divergence of samples of P. aztecus oaxacensis across the Isthmus of Tehuantepec are further examined and taxonomic revisions are suggested.  In addition, this study reviews the sources of data that lead to the conclusion that P. winkelmanni occurred in the Sierra Madre del Sur in Guerrero including a morphometric examination of a reported voucher.  Bayesian and maximum likelihood analyses were conducted on a dataset of 31 Cytb sequences of all taxa in the P. aztecus group except for P. a. cordillerae and a concatenated dataset including five individuals of this group.  Representative taxa of the P. boylii, P. mexicanus, and P. truei groups were included in both analyses.  Body and cranial measurements of the voucher of the P. winkelmanni from Guerrero from which a Cytb sequence is reported to have been obtained was compared with measurements from specimens taken from the vicinity of Dos Aguas, Michoacán, including the type locality.  We identified seven instances involving problematic identifications in GenBank.  Once these issues were addressed, well-supported monophyletic sister clades of the P. aztecus and P. boylii species groups were recovered from phylogenetic analyses of Cytb sequences (Fig 1).  Phylogenetic analyses of the Cytb and the concatenated datasets recover similar topologies that support the relationships of taxa of the aztecus group proposed by an earlier molecular study.  Populations of P. a. oaxacensis southeast of the Isthmus of Tehuantepec represent a distinct species.  Measurements of the voucher from Guerrero identified as the source of a P. winkelmanni Cytb sequence are smaller than P. winkelmanni for several characters.  The divergent populations of P. a. oaxacensis from southeast of the Isthmus of Tehuantepec are recognized as two subspecies of P. cordillerae, P. c. cordillerae and P. c. hondurensis, whereas those northwest of the Isthmus are retained as P. a. oaxacensis.  The lack of genetic divergence observed between P. a. evides and P. a. oaxacensis questions whether these two taxa should continue to be recognized as separate subspecies.  Northern and southern populations of P. spicilegus demonstrate moderate divergence and additional examination of morphological and molecular differentiation within this taxon is warranted.  The distribution of P. winkelmanni should be restricted to the vicinity of Dos Aguas, Michoacán, due to the lack of a voucher specimen that would confirm its reported occurrence in Guerrero.


Palabras clave


Isthmus of Tehuantepec; Peromyscus cordillerae; P. aztecus oaxacensis; P. winkelmanni.

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Referencias


ALLEN, J. A. 1897. Further notes on mammals collected in Mexico by Dr. Audley C. Buller, with descriptions of new species. Bulletin of the American Museum of Natural History 9: 47–58.

ÁLVAREZ, T., J. ARROYO-CABRALES, AND M. GONZÁLEZ ESCAMILLA. 1987. Mamíferos (excepto Chiroptera) de la costa de Michoacán, México. Anales de la Escuela Nacional Ciencias Biológicas 31:13–62.

ÁLVAREZ-CASTAÑEDA, S. T., C. LORENZO, C. A. SEGURA-TRUJILLO, AND S. G. PÉREZ-CONSUEGRA. 2019. Two new species of Peromyscus from Chiapas, Mexico, and Guatemala. Pp. 543–558, in From Field to Laboratory: A Memorial volume in Honor of Robert J. Baker (Bradley, R. D., H. H. Genoways, D. J. Schmidly, and L. C. Bradley, eds.). Special Publications, Museum of Texas Tech University. Lubbock, U.S.A.

AMMAN, B. R. 2005. Molecular systematics of Peromyscus and allies based on nuclear and mitochondrial DNA sequences. Ph.D. dissertation, Texas Tech University. Lubbock, USA.

AMMAN, B. R., J. D. HANSON, L. K. LONGHOFER, S. R HOOFER, AND R. D. BRADLEY. 2006. Intron 2 of the alcohol dehydrogenase gene (Adh-I2): A nuclear DNA marker for mammalian systematics. Occasional Paper, Museum of Texas Tech University 256:1–16.

ÁVILA-VALLE, Z. A., A. CASTRO-CAMPILLO, L. LEÓN-PANIAGUA, I. H. SALGADO-UGALDE, A. G. NAVARRO-SIGÜENZA, B. E. HERNÁNDEZ-BAÑOS, AND J. RAMÍREZ-PULIDO. 2012. Geographic variation and molecular evidence of the blackish deer mouse complex (Peromyscus furvus, Rodentia: Muridae). Mammalian Biology 77:166–177.

BRADLEY, R. D., AND R. J. BAKER. 2001. A test of the genetic species concept; cytochrome-b sequences and mammals. Journal of Mammalogy 82:910-973.

BRADLEY, R. D., AND D. J. SCHMIDLY. 1987. The glans penes and bacula in Latin American taxa of the Peromyscus boylii group. Journal of Mammalogy 68:595–616.

BRADLEY, R. D., D. S. CARROLL, M. L. HAYNIE, R. M. MARTÍNEZ, M. J. Hamilton, and C. W. Kilpatrick. 2004. A new species of Peromyscus from western Mexico. Journal of Mammalogy 85:1184–1193.

BRADLEY, R. D., N. D. DURISH, D. S. ROGERS, J. R. MILLER, M. D. ENGSTROM, AND C. W. KILPATRICK. 2007. Toward a molecular phylogeny for Peromyscus: evidence from mitochondrial cytochrome-b sequences. Journal of Mammalogy 88:1146–1159.

BRADLEY, R. D., J. Q. FRANCIS, R. N. PLATT II, T. J. SONIAT, D. ALVAREZ, AND L. L. LINDSEY. 2019. Mitochondrial DNA sequence data indicate evidence for multiple species within Peromyscus maniculatus. Special Publications, Museum of Texas Tech University 70:1-59.

BRADLEY, R. D, M. NUÑEZ-TABARES, T. J. SONIAT, S. KERR, R. W. RAYMOND, AND N. ORDÓÑEZ-GARZA. 2016. Molecular systematics and phylogeography of Peromyscus nudipes (Cricetidae: Neotominae). Pp. 201-214, in Contributions in Natural History: A Memorial Volume in Honor of Clyde Jones (Manning, R. M., J. R. Goetze, and F. D. Yancey, II, eds.). Special Publications, Museum of Texas Tech University 65:1–273.

BRADLEY, R. D., N. ORDÓÑEZ-GARZA, AND L. C. BRADLEY. 2017. Oaxacan deermouse Peromyscus oaxacensis. Pp. 392, in Handbook of the Mammals of the World, Volume 7, Rodents II (Wilson, D. E., T. E. Lacher, Jr., and R. A. Mittermeier, eds.). Lynx Edicions. Barcelona, Spain.

BRADLEY, R. D., N. ORDÓÑEZ-GARZA, C. G. SOTERO-CAIO, H. M. HUYNH, C. W. KILPATRICK, L. I. IÑIGUEZ-DÁVALOS, AND D. J. SCHMIDLY. 2014. Morphometric, karyotypic, and molecular evidence for a new species of Peromyscus (Cricetidae: Neotominae) from Nayarit, Mexico. Journal of Mammalogy 95:176–186.

BRADLEY, R. D., N. ORDÓÑEZ-GARZA, G. CEBALLOS, D. S. ROGERS, AND D. J. SCHMIDLY. 2017. A new species in the Peromyscus boylii species group (Cricetidae: Neotominae) from Michoacán, México. Journal of Mammalogy 98:154-165.

BRADLEY, R. D., R. D. OWEN, AND D. J. SCHMIDLY. 1996. Morphological variation in Peromyscus spicilegus. Occasional Papers, The Museum, Texas Tech University 161:1–23.

BRADLEY, R. D., D. J. SCHMIDLY, AND R. D. OWEN. 1989. Variation in the glans penes and bacula among Latin American populations of the Peromyscus boylii species complex. Journal of Mammalogy 70:712–725.

BRADLEY, R. D., D. J. SCHMIDLY, AND R. D. OWEN. 1990. Variation in the glans penes and bacula among Latin American populations of Peromyscus aztecus. Occasional Papers, The Museum, Texas Tech University 135:1–15.

BRADLEY, R. D., D. J. SCHMIDLY, B. R. AMMAN, R. N. PLATT, II, K. M. NEUMANN, H. M. HUYNH, R. MUÑIZ-MARTÍNEZ, C. LÓPEZ-GONZÁLEZ, AND N. ORDÓÑEZ-GARZA. 2015. Molecular and morphological data reveals multiple species in Peromyscus pectoralis. Journal of Mammalogy 96:446–459.

BRADLEY, R. D., I. TIEMANN-BOEGE, C. W. KILPATRICK, AND D. J. SCHMIDLY. 2000. Taxonomic status of Peromyscus boylii sacarensis inferred from DNA sequences of the mitochondrial cytochrome-b gene. Journal of Mammalogy 81:875–884.

CABRERA, H., S. T. ÁLVAREZ-CASTAÑEDA, N. GONZÁLEZ-RUIZ, AND J. P. GALLO-REYNOSO. 2007. Distribution and natural history of Schmidly’s deermouse (Peromyscus schmidlyi). Southwestern Naturalist 52:620–623.

CARLETON, M. D. 1977. Interrelationships of populations of the Peromyscus boylii species group (Rodentia: Muridae) in western Mexico. Occasional Papers of the Museum of Zoology, University of Michigan 675:1–47.

CARLETON, M. D. 1979. Taxonomic status and relationships of Peromyscus boylii from El Salvador. Journal of Mammalogy 60:280–296.

CARLETON, M. D. 1989. Systematics and evolution. Pp. 7-141, in Advances in the study of Peromyscus (Rodentia) (Kirkland, G. L., and J. N. Layne, eds.). Texas Tech University Press. Lubbock, U.S.A.

CARLETON, M. D., D. E. WILSON, A. L. GARDNER, AND M. A. BOGAN. 1982. Distribution and systematics of Peromyscus (Mammalia: Rodentia) from Nayarit, Mexico. Smithsonian Contributions in Zoology 352:1–46.

CONROY, V. C. J., Y. HORTELANO, F. A. CERVANTES, AND J. A. COOK. 2001. The phylogenetic position of southern relictual species of Microtus (Muridae: Rodentia) in North America. Mammalian Biology 66:332-344.

DICKEY, D. R. 1928. Five new mammals of the genus Peromyscus from El Salvador. Proceedings of the Biological Society of Washington 41:1–6.

DUPLECHIN, R. M., AND R. D. BRADLEY. 2014. Peromyscus oaxacensis Merrian, 1898 Oaxacan deermouse. Pp. 383–384, in Mammals of México (Ceballos, G., ed.). John Hopkins University Press. Baltimore, U.S.A.

DURISH, N. D., K. E. HALCOMB, C. W. KILPATRICK, AND R. D. BRADLEY. 2004. Molecular systematics of the Peromyscus truei species group. Journal of Mammalogy 85:1160–1169.

GOODWIN, G. G. 1941. A new Peromyscus from western Honduras. American Museum Novitates 1121: 1.

GOODWIN, G. G. 1955. Two new white-footed mice from Oaxaca, Mexico. American Museum Novitates 1732:1–5.

GOODWIN, G. G. 1969. Mammals of the state of Oaxaca, Mexico, in the American Museum of Natural History. Bulletin of the American Museum of Natural History 141:165–362.

GREENBAUM, I. F., R. L. HONEYCUTT, AND S. E. CHIRHART. 2019. Taxonomy and phylogenetics of the Peromyscus maniculatus species group. Pp 559–575, in From the Field to the Laboratory: A Memorial Volume in Honor of Robert J. Baker (Bradley, R. D., H. H. Genoways, D. J. Schmidly, and L. C. Bradley, eds.). Special Publication, Museum of Texas Tech University 71:1–911.

GUINDON, S., J. F. DUFAYARD, V. LEFORT, M. ANISIMOVA, W. HORDUK, AND O. GASCUEL. 2010. New algorithms and methods to estimate maximum likelihood phylogenies: assessing the performance of PhyML 3.0. Systematic Biology 59:307–321.

HALL, E. R. 1981. The Mammals of North America. Second ed. John Wiley and Sons. New York, U.S.A.

HALL, E. R., AND K. R. KELSON. 1959. The Mammals of North America. First ed. Ronald Press. New York, U.S.A.

HOOPER, E. T. 1968. Classification. Pp. 27-69, in Biology of Peromyscus (Rodentia) (King, J. A., ed). Special Publication No. 2, American Society of Mammalogists. Lawrence, U.S.A.

HOOPER, E. T., AND G. G. MUSSER. 1964. Notes on the classification of the rodent genus Peromyscus. Occasional Papers of the Museum of Zoology, University of Michigan 635:1–13.

INTERNATIONAL COMMISSION ON ZOOLOGICAL NOMENCLATURE. 1999. International code of zoological nomenclature, fourth edition. The International Trust for Zoological Nomenclature, London, England.

KIMURA, M. 1980. A simple method for estimating evolutionary rates of base substitutions through comparative studies of nucleotide sequences. Journal of Molecular Evolution 16:111–120.

KUMAR, S., G. STECHER, AND K. TAMURA. 2016. MEGA7: molecular evolutionary genetic analysis version 7.0 for bigger datasets. Molecular Biology and Evolution 33:1870–1874.

LANFEAR, R., B. CALCOTT, S. Y. HO, AND S. GUINDON. 2012. PartitionFinder: combined selection of partitioning schemes and substitution models for phylogenetic analyses. Molecular Biology and Evolution 29:1695–1701.

LANFEAR, R., P. B. FRANDSEN, A. M. WRIGHT, T. SENFELD, AND B. CALCOTT. 2016. PartitionFinder 2: a new method for selecting partitioned models of evolution for molecular and morphological phylogenetic analyses. Molecular Biology and Evolution 34:772–773.

LEÓN-PANIAGUA, L., A. G. NAVARRO-SIGÜENZA, B. E. HERNÁNDEZ-BAÑOS, AND J. C. MORALES. 2007. Diversification of the arboreal mice of the genus Habromys (Rodentia: Cricetidae: Neotominae) in the Mesoamerican highlands. Molecular Phylogenetics and Evolution 42:653-664.

LÉON-TAPIA, M. A., J. A. FERNÁNDEZ, Y. RICO, F. A. CERVANTES, AND A. ESPINOSA DE LOS MONTEROS. 2020. A new mouse of the Peromyscus maniculatus species complex from the highlands of Central Mexico. Journal of Mammalogy 101:1117–1132.

LÓPEZ-GONZÁLEZ, C., M. M. CORREA-RAMÍREZ., AND D. F. GARCÍA-MENDOZA. 2014. Phylogeography of Peromyscus schmidlyi: an endemic of the Sierra Madre Occidental, Mexico. Journal of Mammalogy 95:254–268.

LÓPEZ-GONZÁLEZ, C., D. F. GARCÍA-MENDOZA, J. C. LÓPEZ-VIDAL, AND C. ELIZALDE-ARELLANO. 2019. Multiple lines of evidence reveal a composite of species in the plateau mouse, Peromyscus melanophrys (Rodentia, Cricetidae). Journal of Mammalogy 100:1583–1598.

LORENZO, C., S. T. ÁLVAREZ-CASTAÑEDA, S. PÉREZ, AND J. L. PATTON. 2016. Revision of the taxonomy of the Chiapan deer mouse, Peromyscus zarhynchus, with the description of a new species. Journal of Mammalogy 97:910-918.

MADDISON, W. P, AND D. R. MADDISON. 2011. Mesquite: a modular system for evolutionary analysis. Version 2.75. http://mesquiteproject.org (Accessed July 2019).

MAMMAL DIVERSITY DATABASE. 2020. Mammal Diversity Database (Version 1.31) [Data set]. Zenodo. http://doi.org/10.5281/zenodo.4139818 (Accessed January 2021).

MERRIAM, C. H. 1898. Description of twenty new species and a new subgenus of Peromyscus from Mexico and Guatemala. Proceedings of the Biological Society of Washington 12:115–125.

MILLER, J. R., AND M. D. ENGSTROM. 2008. The relationships of major lineages within Peromyscine rodents: A molecular phylogenetic hypothesis and systematic reappraisal. Journal of Mammalogy 89:1279–1295.

MILLER, M. A., W. PFEIFFER, AND T. SCHWARTZ. 2010. Creating the CIPRES Science Gateway for inference of large phylogenetic trees. Pp. 1–8, in Proceeding of the Gateway Computing Environments Workshop (GCE), 14 November 2010. New Orleans, U.S.A.

MUSSER, G. G. 1969. Notes on Peromyscus (Muridae) of Mexico and Central America. American Museum Novitates 2357:1–23.

MUSSER, G. G., AND M. D. CARLETON. 1993. Family Muridae. Pp. 501–755, in Mammal Species of the World, a Taxonomic and Geographic Reference (Wilson, D. E., and D. M. Reeder, eds.) second edition. Smithsonian Institution Press. Washington, U.S.A.

MUSSER, G. G., AND M. D. CARLETON. 2005. Family Muridae. Pp. 894–1531, in Mammal Species of the World, a Taxonomic and Geographic Reference (Wilson, D. E, and D. M Reeder, eds.) third edition. Johns Hopkins Press. Baltimore, U.S.A.

ORDÓÑEZ-GARZA, N., AND R. D. BRADLEY. 2018. Diversifícation patterns of cricetid rodents in Mesoamerica. Pp. 30-39, in Perspectivas de Investigación sobre los Mamíferos Silvestres de Guatemala (Kraker, C., A. P. Calderón, and A. A. Cabreras, eds.). Asociación Guatemalteca de Mastzoologos. Guatemala City, Guatemala.

ORDÓÑEZ-GARZA, N., C. W. THOMPSON, M. K. UNKEFER, C. W. EDWARDS, J. G. OWENS, AND R. D. BRADLEY. 2014. Systematics of the Neotoma mexicanus group (Mammalia: Rodentia: Cricetidae) in Mesoamerica: new molecular evidence on the status and relationship of N. ferruginea Tomes, 1862. Proceedings of the Biological Society of Washington 127:518-532.

OSGOOD, W. H. 1904. Thirty new mice of the genus Peromyscus from Mexico and Guatemala. Proceedings of the Biological Society of Washington 17:55–77

OSGOOD, W. H. 1909. Revision of the mice of the American genus Peromyscus. North American Fauna 28:1–285.

PARDIÑAS, U. F. J., P. MYERS, L. LEÓN-PANIAGUA, N. ORDÓÑEZ GARZA, J. A. COOK, B. KRYŠTUFEK, R. HASLAUUER, R. D. BRADLEY, G. I. SHENBROT, AND J. L. PATTON. 2017. Family Cricetidae (true hamsters, voles, lemmings, New World rats and mice). Pp. 204-535, in Handbook of the Mammals of the World, Volume 7, Rodents II (Wilson, D. E., T. E. Lacher, Jr., and R. A. Mittermeier, eds.). Lynx Edicions. Barcelona, Spain.

PATTON, J. L., AND C. J. CONROY. 2017. The conundrum of subspecies: morphological diversity among desert populations of the California vole (Microtus californicus, Cricetidae). Journal of Mammalogy 98:1010–1026.

PÉREZ-CONSUEGRA, S. G., AND E. VÁZQUEZ-DOMÍNQUEZ. 2015. Mitochondrial diversification of the Peromyscus mexicanus species group in nuclear Central America: biogeographic and taxonomic implications. Journal of Zoological Systematics and Evolutionary Research 53:300–311.

PLATT, R. N., A. M. AMMAN, M. S. KEITH, C. W. THOMPSON, AND R. D. BRADLEY. 2015. What is Peromyscus? Evidence from nuclear and mitochondrial DNA sequences suggests the need for a new classification. Journal of Mammalogy 96:708–719.

RAMBAUT, A., M. A. SUCHARD, D. XIE, AND A. J. DRUMMOND. 2014. Tracer v1.6. http://beast.bio.ed.ac.uk/Tracer

REEDER, S. A, AND R. D BRADLEY. 2007. Phylogenetic relationships of Neotomine-Peromyscine rodents using DNA sequences from beta fibrinogen and cytochrome b. Pp. 883–900, in The Quintessential Naturalist: Honoring the Life and Legacy of Oliver P. Pearson (Kelt, D. A., E. P. Lessa, J. Salazar-Bravo, and J. L. Patton eds.). University of California Publications in Zoology 134:1–981.

RONQUIST, F., AND J. P. HUELSENBECK. 2003. MRBAYES 3: Bayesian phylogenetic inference under mixed models. Bioinformatics 19:1572–574.

SAASA, N., C. SÁNCHEZ-HERNÁNDEZ, M. DE LOURDES ROMERO-ALMARAZ, E. GUERRERO-IBARRA, A. ALMAZÁN-CATALÁN, H. YOSHIDA, D. MIYASHITA, M. ISHIZUKA, T. SANADA, T. SETO, K. YOSHI, C. RAMOS, K. YOSHIMATSU, J .ARIKAWA, I. TAKASHIMA, AND H. KARIWA. 2012. Ecology of hantaviruses in Mexico: genetic identification of rodent host species and spillover infection. Virus Research 168:88–96.

SAITOU, N., AND M. NEI. 1987. The neighbor-joining method: a new method for reconstructing phylogenetic trees. Molecular Biology and Evolution 4:406–425.

SÁNCHEZ-CORDERO, V., AND B. VILLA-RAMÍREZ. 1988. Variación morfométrica en Peromyscus spicilegus (Rodentia: Cricetinae) en la parte nordeste de Jalisco, México. Anales Instituto de Biología, Serie Zoología 2:819–836.

SAUSSURE, M. H. 1860. Note sur quelques mammiféres de Mexique. Revue et Magazine Zoologie, Paris, Serie 2 12:97–110.

SMITH, S. A. 1990. Cytosystematic evidence against monophyly of the Peromyscus boylii species group (Rodentia: Cricetidae). Journal of Mammalogy 71:603–608.

SMITH, S. A., I. F. GREENBAUM, D. J. SCHMIDLY, K. M. DAVIS, AND T. W. HOUSEAL. 1989. Additional notes on karyotypic variation in the Peromyscus boylii species group. Journal of Mammalogy 70:603–608.

STAMATAKIS, A. 2014. RAxML Version 8: A tool for phylogenetic analysis and post-analysis of large phylogenies. Bioinformatics 30:1312–1313.

SULLIVAN, J., AND C. W. KILPATRICK. 1991. Biochemical systematics of the Peromyscus aztecus assemblage. Journal of Mammalogy 72:681–696.

SULLIVAN J., E. ARELLANO, AND D. S. ROGERS. 2000. Comparative phylogeography of Mesoamerican highland rodents: concerted versus independent response to past climatic fluctuations. The American Naturalist 155:755-768.

SULLIVAN, J, J. A. MARKET, AND C. W. KILPATRICK. 1997. Phylogeographic and molecular systematics of the Peromyscus aztecus species group (Rodentia: Muridae) inferred using parsimony and likelihood. Systematic Biology 46:426–440.

SULLIVAN, K. A. M., R. N. PLATT II, R. D. BRADLEY, AND D. A. RAY. 2017. Whole mitochondrial genomes provide increased resolution and indicate paraphyly in deer mice. BMC Zoology 2:11.

TIEMANN-BOEGE, I., C. W. KILPATRICK, D. J. SCHMIDLY, AND R. D. BRADLEY. 2000. Molecular phylogenetics of the Peromyscus boylii species group (Rodentia: Muridae) based on mitochondrial cytochrome b sequences. Molecular Phylogenetics and Evolution 16:366–378.

THOMPSON, J. D., D. G. HIGGINS, AND T. J. GIBSON. 1994. CLUSTAL W: improving the sensitivity of progressive multiple sequence alignments through sequence weighting, positions-specific gap penalties and weight matrix choice. Nucleic Acids Research 22:4673–4680.


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