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Usso MC, Santos ARD, Gouveia JG, Frantine-Silva W, Araya-Jaime C, Oliveira MLMD, Foresti F, Giuliano-Caetano L, Dias AL. Genetic and Chromosomal Differentiation of Rhamdia quelen (Siluriformes, Heptapteridae) Revealed by Repetitive Molecular Markers and DNA Barcoding. Zebrafish 2018; 16:87-97. [PMID: 30227086 DOI: 10.1089/zeb.2018.1576] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023] Open
Abstract
Rhamdia quelen, a species of Heptapteridae, is considered to be a complex because of taxonomic and phylogenetic inconsistencies. Determining the physical location of repetitive DNA sequences on the chromosomes and the DNA barcode might increase our understanding of these inconsistencies within different groups of fish. To this end, we analyzed R. quelen populations from two river basins in Brazil, Paraguay and Parana, using DNA barcoding and different chromosomal markers, including U2 snDNA, which has never been analyzed for any Rhamdia species. Cytochrome c oxidase I gene sequence analysis revealed a significant differentiation among populations from the Miranda and Quexada rivers, with genetic distances compatible to those found among different species in neotropical fishes. Our results, in general, revealed a conservative chromosomal evolution in R. quelen and a differential distribution of some markers, such as 5S rDNA and U2 snDNA, in different populations. We suggest that R. quelen must undergo a major revision in its morphological, genetic, and cytogenetic molecular and taxonomic structure to elucidate possible operational taxonomic units.
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Affiliation(s)
- Mariana Campaner Usso
- 1 Departamento de Biologia Geral, Centro de Ciências Biológicas (CCB), Universidade Estadual de Londrina, Londrina, Brazil
| | - Angélica Rossotti Dos Santos
- 1 Departamento de Biologia Geral, Centro de Ciências Biológicas (CCB), Universidade Estadual de Londrina, Londrina, Brazil
| | - Juceli Gonzalez Gouveia
- 1 Departamento de Biologia Geral, Centro de Ciências Biológicas (CCB), Universidade Estadual de Londrina, Londrina, Brazil
| | - Wilson Frantine-Silva
- 1 Departamento de Biologia Geral, Centro de Ciências Biológicas (CCB), Universidade Estadual de Londrina, Londrina, Brazil
| | - Cristian Araya-Jaime
- 2 Departamento de Morfologia, Instituto de Biociências, Universidade Estadual Paulista, Botucatu, Brazil
| | | | - Fausto Foresti
- 2 Departamento de Morfologia, Instituto de Biociências, Universidade Estadual Paulista, Botucatu, Brazil
| | - Lucia Giuliano-Caetano
- 1 Departamento de Biologia Geral, Centro de Ciências Biológicas (CCB), Universidade Estadual de Londrina, Londrina, Brazil
| | - Ana Lúcia Dias
- 1 Departamento de Biologia Geral, Centro de Ciências Biológicas (CCB), Universidade Estadual de Londrina, Londrina, Brazil
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