Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.12/1431
Título: Re-examination and phylogeny of the genus Chondrostoma based on mitochondrial and nuclear data and the deWnition of 5 new genera
Autor: Robalo, Joana Isabel
Almada, Vítor Carvalho
Levy, André
Doadrio, Ignacio
Palavras-chave: Cyprinidae
Paleobiogeography
B-Actin
Character mapping
Taxonomic revision
New genera
Data: 2007
Editora: Elsevier
Citação: Molecular Phylogenetics and Evolution, 42, 362-372
Resumo: Previous molecular phylogenetic studies of the genus Chondrostoma (Cyprinidae: Leuciscinae) were unable to resolve the relationship among its major species groups. In this paper we present a phylogeny for this genus, based on Wve mitochondrial genes and the nuclear gene -actin, comprising a total of 4068 bp. Bayesian inference using all gene fragments yielded a fully resolved phylogeny, compatible with topologies obtained from individual fragments using maximum parsimony and minimum evolution. Mapping of morphological characters critical to the rasping feeding mode of most Chondrostoma species indicates that they evolved several times, and questions the use of these characters in the traditional deWnition of the genus. Our Wndings led us to the deWnition of the following new genera: Achondrostoma, Iberochondrostoma, Pseudochondrostoma, Protochondrostoma and Parachondrostoma. Our data contradict the hypothesis of a rapid radiation during Lago Mare phase, suggested by previous studies.
Peer review: yes
URI: http://hdl.handle.net/10400.12/1431
DOI: 10.1016/j.ympev.2006.07.003
ISSN: 1055-7903
Aparece nas colecções:UIE-E - Artigos em revistas internacionais

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