Mol Phylogenet Evol 2019 11 27;140:106604. Epub 2019 Aug 27.
Laboratório de Ictiologia, Departamento de Zoologia, Universidade Federal do Rio Grande do Sul - UFRGS, Av. Bento Gonçalves, 9500, Bloco 4, prédio 43.435, 91501-970 Porto Alegre, RS, Brazil; Laboratorio de Ictiología, Unidad de Ecología y Sistemática (UNESIS), Departamento de Biología, Facultad de Ciencias, Pontificia Universidad Javeriana, Carrera 7 N° 43-82, Bogotá D.C., Colombia.
The pike-characin Oligosarcus is a group of Characidae composed of 22 species, which have mostly allopatric distributed species in southeastern South America and sympatric occurrence of few species. Oligosarcus shares a similar distribution pattern with other fish genera and therefore, can help us to understand biogeographic events that influenced freshwater fish distribution in the southeastern South America. Our paper presents the most extensive taxonomic coverage for molecular analysis of Oligosarcus and uses various methods to examine the evolutionary history of the genus. Read More