Taxonomic status and origin of the shrews (soricidae) from the canary islands inferred from a mtdna comparison with the european crocidura species
European island shrews are either relicts of the endemic Pleistocene fauna, e.g., Crocidura zimmermanni, or were introduced from continental source populations. In order to clarify the taxonomic status and the origin of the two shrew species from the Canary Islands, a 981 bp fragment of cytochrome b...
| Autores: | , , |
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| Tipo de recurso: | artículo |
| Fecha de publicación: | 2003 |
| País: | España |
| Repositorio: | accedaCRIS portal de investigación de la Universidad de las Palmas de Gran Canaria |
| OAI Identifier: | oai:accedacris.ulpgc.es:10553/17908 |
| Acceso en línea: | http://hdl.handle.net/10553/17908 |
| Access Level: | acceso abierto |
| Palabra clave: | 24 Ciencias de la vida 2401 Biología animal (zoología) 240118 Mamíferos 240123 Vertebrados Cytochrome-B Sequences Geographic-Variation Russula Hermann Dna Evolution Mammalia Insectivora Phylogeny Colonization Fuerteventura Biogeography Crocidura Canariensis Crocidura Osorio Crocidura Russula Crocidura Sicula Jump Dispersal Phylogeography Vicariance |
| Sumario: | European island shrews are either relicts of the endemic Pleistocene fauna, e.g., Crocidura zimmermanni, or were introduced from continental source populations. In order to clarify the taxonomic status and the origin of the two shrew species from the Canary Islands, a 981 bp fragment of cytochrome b gene was investigated in all European Crocidura species and compared with the Canary shrew (Crocidura canariensis) and the Osorio shrew (Crocidura osorio). The first shares its karyotype with the Sicilian shrew Crocidura sicula (2N = 36), the second with the Greater white-toothed shrew Crocidura russula (2N = 42), suggesting possible sister species relationships.</p> |
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