| The evolution of South American endemic canids: a history of rapid diversification and morphological parallelism. | |
| | |
MedLine Citation:
|
PMID: 20002250 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
|
The origin of endemic South American canid fauna has been traditionally linked with the rise of the Isthmus of Panama, suggesting that diversification of the dog fauna on this continent occurred very rapidly. Nevertheless, despite its obvious biogeographic appeal, the tempo of Canid evolution in South America has never been studied thoroughly. This issue can be suitably tackled with the inference of a molecular timescale. In this study, using a relaxed molecular clock method, we estimated that the most recent common ancestor of South American canids lived around 4 Ma, whereas all other splits within the clade occurred after the rise of the Panamanian land bridge. We suggest that the early diversification of the ancestors of the two main lineages of South American canids may have occurred in North America, before the Great American Interchange. Moreover, a concatenated morphological and molecular analysis put some extinct canid species well within the South American radiation, and shows that the dental adaptations to hypercarnivory evolved only once in the South American clade. |
| | |
Authors:
|
F A Perini; C A M Russo; C G Schrago |
Publication Detail:
|
Type: Journal Article; Research Support, Non-U.S. Gov't Date: 2009-11-26 |
Journal Detail:
|
Title: Journal of evolutionary biology Volume: 23 ISSN: 1420-9101 ISO Abbreviation: J. Evol. Biol. Publication Date: 2010 Feb |
Date Detail:
|
Created Date: 2010-05-21 Completed Date: 2010-09-07 Revised Date: - |
Medline Journal Info:
|
Nlm Unique ID: 8809954 Medline TA: J Evol Biol Country: Switzerland |
Other Details:
|
Languages: eng Pagination: 311-22 Citation Subset: IM |
Affiliation:
|
Departamento de Genética, IB, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil. |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
Animals Canidae / anatomy & histology, genetics* Evolution* Fossils Genes, Mitochondrial South America Time Factors |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Did the introduction of maize into Europe provide enemy-free space to Ostrinia nubilalis? Parasitism...
Next Document: Avian colour perception predicts behavioural responses to experimental brood parasitism in chaffinch...