English   español  
Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/123960
Compartir / Impacto:
Estadísticas
Add this article to your Mendeley library MendeleyBASE
 |  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

Life-history evolution and mitogenomic phylogeny of caecilian amphibians

Autor San Mauro, Diego ; Gower, David J.; Müller, Hendrik; Loader, Simon P.; Zardoya, Rafael ; Nussbaum, Ronald A.; Wilkinson, Mark
Fecha de publicación 27-ene-2014
EditorElsevier
Citación Molecular Phylogenetics and Evolution 73: 177-189 (2014)
ResumenWe analyze mitochondrial genomes to reconstruct a robust phylogenetic framework for caecilian amphibians and use this to investigate life-history evolution within the group. Our study comprises 45 caecilian mitochondrial genomes (19 of them newly reported), representing all families and 27 of 32 currently recognized genera, including some for which molecular data had never been reported. Support for all relationships in the inferred phylogenetic tree is high to maximal, and topology tests reject all investigated alternatives, indicating an exceptionally robust molecular phylogenetic framework of caecilian evolution consistent with current morphology-based supraspecific classification. We used the mitogenomic phylogenetic framework to infer ancestral character states and to assess correlation among three life-history traits (free-living larvae, viviparity, specialized pre-adult or vernal teeth), each of which occurs only in some caecilian species. Our results provide evidence that an ancestor of the Seychelles caecilians abandoned direct development and re-evolved a free-living larval stage. This study yields insights into the concurrent evolution of direct development and of vernal teeth in an ancestor of Teresomata that likely gave rise to skin-feeding (maternal dermatophagy) behavior and subsequently enabled evolution of viviparity, with skin feeding possibly a homologous precursor of oviduct feeding in viviparous caecilians. © 2014 Elsevier Inc.
URI http://hdl.handle.net/10261/123960
DOI10.1016/j.ympev.2014.01.009
Identificadoresdoi: 10.1016/j.ympev.2014.01.009
issn: 1055-7903
e-issn: 1095-9513
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
 

Artículos relacionados:


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