English   español  
Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/115664
Compartir / Impacto:
Estadísticas
Add this article to your Mendeley library MendeleyBASE
Citado 66 veces en Web of Knowledge®  |  Pub MebCentral Ver citas en PubMed Central  |  Ver citas en Google académico
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar otros formatos: Exportar EndNote (RIS)Exportar EndNote (RIS)Exportar EndNote (RIS)
Título

Revising the recent evolutionary history of equids using ancient DNA

Autor Orlando, Ludovic; Alberdi, María Teresa; Cooper, Alan
Palabras clave DNA taxonomy
Equid evolution
Macroevolution
Phylogeny
Ancient DNA
Fecha de publicación 2009
EditorNational Academy of Sciences (U.S.)
Citación Proceedings of the National Academy of Sciences of the USA 106(51): 21754–21759 (2009)
ResumenThe rich fossil record of the family Equidae (Mammalia: Perissodactyla) over the past 55 MY has made it an icon for the patterns and processes of macroevolution. Despite this, many aspects of equid phylogenetic relationships and taxonomy remain unresolved. Recent genetic analyses of extinct equids have revealed unexpected evolutionary patterns and a need for major revisions at the generic, subgeneric, and species levels. To investigate this issue we examine 35 ancient equid specimens from four geographic regions (South America, Europe, Southwest Asia, and South Africa), of which 22 delivered 87–688 bp of reproducible aDNA mitochondrial sequence. Phylogenetic analyses support a major revision of the recent evolutionary history of equids and reveal two new species, a South American hippidion and a descendant of a basal lineage potentially related to Middle Pleistocene equids. Sequences from specimens assigned to the giant extinct Cape zebra, Equus capensis, formed a separate clade within the modern plain zebra species, a phenotypicically plastic group that also included the extinct quagga. In addition, we revise the currently recognized extinction times for two hemione-related equid groups. However, it is apparent that the current dataset cannot solve all of the taxonomic and phylogenetic questions relevant to the evolution of Equus. In light of these findings, we propose a rapid DNA barcoding approach to evaluate the taxonomic status of the many Late Pleistocene fossil Equidae species that have been described from purely morphological analyses.
Descripción Ludovic Orlando et al.
Versión del editorhttp://dx.doi.org/10.1073/pnas.0903672106
URI http://hdl.handle.net/10261/115664
DOI10.1073/pnas.0903672106
ISSN0027-8424
E-ISSN1091-6490
Aparece en las colecciones: (MNCN) Artículos
Ficheros en este ítem:
Fichero Descripción Tamaño Formato  
accesoRestringido.pdf15,38 kBAdobe PDFVista previa
Visualizar/Abrir
Mostrar el registro completo
 



NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.