Open AccessEvolutionary and biogeographic history of the subfamily N eoplecostominae ( S iluriformes: L oricariidae)
Author(s) -
Roxo Fábio F.,
Zawadzki Cláudio H.,
Alexandrou Markos A.,
Costa Silva Guilherme J.,
Chiachio Marcio C.,
Foresti Fausto,
Oliveira Claudio
Publication year - 2012
Publication title -
ecology and evolution
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.17
H-Index - 63
ISSN - 2045-7758
DOI - 10.1002/ece3.368
Subject(s) - subfamily , monophyly , phylogenetic tree , biology , lineage (genetic) , molecular clock , genus , taxon , phylogenetics , zoology , catfish , evolutionary biology , ecology , fish <actinopterygii> , clade , gene , genetics , fishery
Freshwater fish evolution has been shaped by changes in the earth's surface involving changes in the courses of rivers and fluctuations in sea level. The main objective of this study is to improve our knowledge of the evolution of loricariids, a numerous and adaptive group of freshwater catfish species, and the role of geological changes in their evolution. We use a number of different phylogenetic methods to test the relationships among 52 representative taxa within the N eoplecostominae using 4676 bps of mitochondrial and nuclear DNA . Our analysis revealed that the subfamily N eoplecostominae is monophyletic, including P seudotocinclus, with three lineages recognized. The first lineage is composed of part of P areiorhina rudolphi , P . cf. rudolphi , and P seudotocinclus ; the second is composed of I sbrueckerichthys , P areiorhaphis, K ronichthys , and the species N eoplecostomus ribeirensis ; and the third is composed of P areiorhina carrancas , P . cf. carrancas , P areiorhina sp. 1, a new genus, and all the species of the genus N eoplecostomus , except N . ribeirensis . The relaxed molecular clock calibration provides a temporal framework for the evolution of the group, which we use for a likelihood‐based historical biogeographic analysis to test relevant hypotheses on the formation of southeast B razil. We hypothesize that headwater capture events and marine regressions have shaped the patterns of distribution within the subfamily N eoplecostominae throughout the distinct basins of southeast B razil.