Molecular systematics of small-eared shrews (Soricomorpha, Mammalia) within Cryptotis mexicanus species group from Mesoamerica

• Autorzy: Guevara L. , Cervantes F. A.
• Języki publikacji: EN

Abstrakty

EN

Cryptotis mexicanus species group is the most diverse group of Cryptotis shrews in the Mesoamerican highlands (ca.13 species). In México, eight endemic species occurs and several taxa are endangered. The species’ limits and phylogenetic relationships of these taxa have been recently examined using morphology; nevertheless, little is known about phylogenetic relationships among Cryptotis species at the molecular level. Therefore, our research included a mitochondrial DNA marker as a source of additional information to corroborate taxonomic identification and produce a phylogenetic hypothesis of the C. mexicanus species group. We were particularly interested in the status of Cryptotis magnus, a species considered as relict on the basis of primitive characters. Based on the analyses of genetic sequences of a high number of Cryptotis species, outgroups, and phylogenetic analyses of parsimony and Bayesian inference, we confirmed that Cryptotis genus consists of different lineages that represent species groups. A detailed analysis suggests that C. magnus is a species that shares an evolutionary history with the C. mexicanus species group because it is imbedded within this group. In particular, our data strongly support that C. magnus and Cryptotis phillipsii are sister groups, a pair of species that inhabit allopatrically Southern México.

• Wydawca: -
• Czasopismo: Acta Theriologica
• Rocznik: 2014
• Tom: 59
• Numer: 2
• Opis fizyczny: p.233-242,fig.,ref.

Twórcy

autor

Guevara L.

• Coleccion Nacional de Mamiferos, Departamento de Zoologia, Instituto de Biologia, Universidad Nacional Autonoma de Mexico, Apartado Postal 70-153, 04510 Mexico, Distrito Federal, Mexico

autor

Cervantes F. A.

• Coleccion Nacional de Mamiferos, Departamento de Zoologia, Instituto de Biologia, Universidad Nacional Autonoma de Mexico, Apartado Postal 70-153, 04510 Mexico, Distrito Federal, Mexico

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Identyfikatory

DOI

10.1007/s13364-013-0165-6