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Phylogeny of the Serrasalmidae (Characiformes) based on mitochondrial DNA sequences
Provedor de dados: Genetics and Molecular Biology
Autores: Ortí,Guillermo; Sivasundar,Arjun; Dietz,Kelly; Jégu,Michel.
Previous studies based on DNA sequences of mitochondrial (mt) rRNA genes showed three main groups within the subfamily Serrasalminae: (1) a "pacu" clade of herbivores (Colossoma, Mylossoma, Piaractus); (2) the "Myleus" clade (Myleus, Mylesinus, Tometes, Ossubtus); and (3) the "piranha" clade (Serrasalmus, Pygocentrus, Pygopristis, Pristobrycon, Catoprion, Metynnis). The genus Acnodon was placed as the sister taxon of clade (2+3). However, poor resolution within each clade was obtained due to low levels of variation among rRNA gene sequences. Complete sequences of the hypervariable mtDNA control region for a total of 45 taxa, and additional sequences of 12S and 16S rRNA from a total of 74 taxa representing all genera in the family are now presented to...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Piranhas; Pacus; D-loop; Phylogeny; Bayesian inference.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572008000200030