Who is Andesiops peruvianus (Ulmer, 1920) (Ephemeroptera: Baetidae)? New insight from the type basin using morphological and molecular analyses.

Andesiops peruvianus (Ulmer, 1920) is a small minnow mayfly with a distribution throughout the Andes Mountains, mainly in lotic environments. In recent years, the taxonomic status of the species has been shifting, even finding out molecular and morphological evidence to consider it as a cryptic species. In this work, we collected seven specimens of A.

Use of complete mitochondrial genome sequences to identify barcoding markers for groups with low genetic distance.

Complete mitochondrial sequences can be rapidly obtained and are widely available, providing a great source of species information and allowing for the discovery of new specific molecular markers. However, for some taxonomic groups, traditional approaches for species delimitation are impaired by the low genetic distance values. In these cases, other species-level markers are used.

(Characiformes, Anostomidae): complete mtDNA sequence of an economically important fish from the Paraná and La Plata river basins.

is an important commercial fish found in the La Plata and Paraná River basins. Next-generation sequencing was used to sequence the mitochondrial DNA (mtDNA) of . The mtDNA was assembled using the CLC Workbench software v.

(Siluriformes, Pimelodidae): complete mtDNA sequence of an economically important fish from the São Francisco river basin.

Pimelodus is an important commercial fish found in the São Francisco and Paraná river basins. NGS was used to sequence the mtDNA of . The mtDNA was annotated and aligned with that of 25 other fish species to enable phylogenetic analysis.

Complete mitochondrial DNA of (Günther, 1864) (Ostariophysi: Characiformes: Erythrinidae).

Mitochondrial complete genome (mtDNA) of , commonly known as "traírão" is presented. DNA from a muscle tissue sample was sequenced by next-generation sequencing. To corroborate the results, phylogenetic analysis was performed with MEGA6 to compare the complete mitogenome of with genomes of other Characiformes species.