Busca avançada
Ano de início
Entree
(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

Species tree estimation for a deep phylogenetic divergence in the New World monkeys (Primates: Platyrrhini)

Texto completo
Autor(es):
Ivan Perez, S. [1] ; Klaczko, Julia [2] ; dos Reis, Sergio F. [2]
Número total de Autores: 3
Afiliação do(s) autor(es):
[1] Univ Nacl La Plata, CONICET, Museo La Plata, Div Antropol, RA-1900 La Plata, Buenos Aires - Argentina
[2] Univ Estadual Campinas, Dept Biol Anim, BR-13083970 Sao Paulo - Brazil
Número total de Afiliações: 2
Tipo de documento: Artigo Científico
Fonte: Molecular Phylogenetics and Evolution; v. 65, n. 2, p. 621-630, NOV 2012.
Citações Web of Science: 20
Resumo

The estimation of a robust phylogeny is a necessary first step in understanding the biological diversification of the platyrrhines. Although the most recent phylogenies are generally robust, they differ from one another in the relationship between Aotus and other genera as well as in the relationship between Pitheciidae and other families. Here, we used coding and non-coding sequences to infer the species tree and embedded gene trees of the platyrrhine genera using the Bayesian Markov chain Monte Carlo method for the multispecies coalescent ({*}BEAST) for the first time and to compared the results with those of a Bayesian concatenated phylogenetic analysis. Our species tree, based on all available sequences, shows a closer phylogenetic relationship between Atelidae and Cebidae and a closer relationship between Aotus and the Cebidae clade. The posterior probabilities are lower for these conflictive tree nodes compared to those in the concatenated analysis; this finding could be explained by some gene trees showing no concordant topologies between Aotus and the other genera. Moreover, the topology of our species tree also differs from the findings of previous molecular and morphological studies regarding the position of Aotus. The existence of discrepancies between morphological data, gene trees and the species tree is widely reported and can be related to processes such as incomplete lineage sorting or selection. Although these processes are common in species trees with low divergence, they can also occur in species trees with deep and rapid divergence. The sources of the inconsistency of morphological and molecular traits with the species tree could be a main focus of further research on platyrrhines. (C) 2012 Elsevier Inc. All rights reserved. (AU)

Processo FAPESP: 11/17070-6 - Análise da influência de fatores ecológicos e evolutivos na diversificação morfológica das serpentes sul americanas da subfamília Xenodontinae (Serpentes, Dipsadidae)
Beneficiário:Julia Klaczko
Linha de fomento: Bolsas no Brasil - Pós-Doutorado