Molecular phylogenetics of the mud and musk turtle family Kinosternidae.
Mol Phylogenet Evol
; 69(3): 929-39, 2013 Dec.
Article
em En
| MEDLINE
| ID: mdl-23823161
The turtle family Kinosternidae comprises 25 living species of mud and musk turtles confined to the New World. Previous attempts to reconstruct a phylogenetic history of the group have employed morphological, isozyme, and limited mitochondrial DNA sequence data, but have not been successful in producing a well-resolved phylogeny. With tissues from every recognized species and most subspecies, we sequenced three mitochondrial (cyt b, 12S, 16S) and three nuclear markers (C-mos, RAG1, RAG2). Our analyses revealed the existence of three well-resolved clades within the Kinosterninae (aged >22 mya), only two of which have been named: Sternotherus and Kinosternon. We here describe the third clade as a new genus. The evolutionary relationships among most species were well resolved, although those belonging to the K. scorpioides species group will require more extensive geographic and genetic sampling. Divergence time estimates and ancestral area reconstructions permitted the development of the first rigorous hypothesis of the zoogeographic history of the group, including support for three separate dispersals into South America, at least two of which preceded the closure of the Panamanian portal.
Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Filogenia
/
Tartarugas
/
Evolução Biológica
Tipo de estudo:
Prognostic_studies
Limite:
Animals
País/Região como assunto:
America do norte
/
America do sul
Idioma:
En
Revista:
Mol Phylogenet Evol
Assunto da revista:
BIOLOGIA
/
BIOLOGIA MOLECULAR
Ano de publicação:
2013
Tipo de documento:
Article
País de publicação:
Estados Unidos