Molecular Evidences of a Hidden Complex Scenario in Leporinus cf. friderici

Frontiers in Genetics
Rosane Silva-SantosPatrícia D Freitas

Abstract

The megadiversity of the neotropical ichthyofauna has been associated to recent diversification processes, reflecting in subtle or lacking morphological differentiation between species, challenging the classical taxonomic identification. Leporinus friderici occurs in several river basins of South America, and its nominal taxonomic validity has been questioned. Its wide distribution within the Brazilian Shield suggests that this species could be genetically structured among the hydrographic basins, despite a sharp morphological similarity. In this study, we performed phylogenetic analyses, based on three nuclear (recombination activating gene 1, RAG1, recombination activating gene 2, RAG2, and myosin heavy chain 6 cardiac muscle alpha gene, Myh6) and two mitochondrial (COI and Cytochrome b, Cytb) markers, in specimens morphologically similar to L. friderici and related species from different hydrographic basins in South America. Our phylogenetic tree identified four well-supported clades, which point out to the existence of taxonomic inconsistencies within this fish group. A clade named L. cf. friderici sensu stricto included eight Molecular Operational Taxonomic Units recently diversified in the Brazilian Shield basins. These r...Continue Reading

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Citations

Jun 20, 2020·Molecular Ecology Resources·Laura A HardulakGerhard Haszprunar
Aug 26, 2020·PloS One·Ueslei LopesPatricia Domingues de Freitas
Jul 2, 2019·Genetics and Molecular Biology·Emanoel Oliveira Dos SantosMarcelo Ricardo Vicari

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Software Mentioned

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BEAST
MEGA
SPLITS
Clustal W
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TRACER
POPART
JModeltest
MOTUS

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