Phylogeographic patterns in suckermouth catfish Hypostomus ancistroides (Loricariidae): dispersion, vicariance and species complexity across a Neotropical biogeographic region

The upper Paraná River system (UP) is a highly diverse biogeographic province for freshwater fishes, but little is known about processes which shaped that diversity. This study describes the phylogeographic pattern in Hypostomus ancistroides, a suckermouth catfish species that is widespread in the U...

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Published inMitochondrial DNA. Part A. DNA mapping, sequencing, and analysis Vol. 27; no. 5; pp. 3590 - 3596
Main Authors Hollanda Carvalho, Pedro, Maia Queiroz Lima, Sergio, Henrique Zawadzki, Cláudio, Oliveira, Cláudio, de Pinna, Mario
Format Journal Article
LanguageEnglish
Published England Taylor & Francis 02.09.2016
Subjects
Animal Distribution
Animals
Brazil
Catfishes - genetics
Fish Proteins - genetics
Genetic Variation
Headwater capture
Mitochondrial Proteins - genetics
Neotropical fish fauna
Phylogeny
Phylogeography
Ribeira de Iguape basin
Rivers
speciation
upper Paraná River system
Neotropical fish fauna
Ribeira de Iguape basin
Headwater capture
phylogeography
speciation
upper Paraná River system
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Summary:The upper Paraná River system (UP) is a highly diverse biogeographic province for freshwater fishes, but little is known about processes which shaped that diversity. This study describes the phylogeographic pattern in Hypostomus ancistroides, a suckermouth catfish species that is widespread in the UP and also reported from the adjoining Ribeira do Iguape basin. We used complete mtDNA sequences of ATPase 6/8 of 162 specimens to infer haplotype distribution using phylogenetic and demographic analyses and a Bayesian molecular clock. Results suggest that during the Quaternary H. ancistroides has undergone superimposed phylogeographic histories, alternating between isolation and subsequent merging of different populations. Occurrence of an isolated population on the Ribeira de Iguape is demonstrated to be a Pleistocene headwater capture event. Widely distributed haplotypes indicate deep genetic differences and suggest that populations of H. ancistroides were isolated for considerable time, but did not undergo speciation because of recurrent population mixing.
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ISSN:2470-1394
2470-1408
DOI:10.3109/19401736.2015.1079822