Journal Article
DNA barcode shows discordant cases among morphological and molecular species identification in Isbrueckerichthys (Siluriformes: Loricariidae)
Almeida, R.B., Azambuja, M., Nogaroto, V., Oliveira, C., Roxo, F.F., Zawadzki, C.H. and Vicari, M.R.
Record Number:
6762
Year:
2024
Journal:
Neotropical Ichthyology
Volume:
22(3):e240040
Abstract:
Isbrueckerichthys is a genus of armored catfish (Siluriformes: Loricariidae) with five species in the lowlands from the Ribeira de Iguape basin and in the uplands of the Tibagi River basin. Despite the validation of the morphological species, molecular data to investigate gene flow and species delimitation have not been completed for all species. For this purpose, we compared sequences of COI region associated with barcoding molecular identification, aiming for a species delimitation analysis and generating population data of I. alipionis, I. epakmos, I. duseni, I. cf. duseni, I. saxicola, and I. calvus. The K2P genetic distance, molecular species delimitation analysis, and well-sustained branches in the phylogenetic tree validate I. alipionis, I. epakmos, and I. duseni, and suggest I. cf. duseni as a valid molecular operational taxonomic unit. However, no differences were detected between I. saxicola and I. calvus. The discordance between molecular and morphological species may be due to the recent dispersal of some Isbrueckerichthys representatives at the border between the Ribeira de Iguape and Tibagi basins. The isolation features of the mountainous region of Ribeira de Iguape basin and headwaters captures to uplands are presented to explain the dispersion and the cases of incipient speciation in Isbrueckerichthys lineages.
Keywords:
Incipient speciation; Integrative taxonomy; Molecular operational taxonomic units; Molecular species delimitation; Systematics
Times Cited:
1
Relevent Species:
Related Records:
Gosline, W.A. (1947)
Contibutions to the classification of the loicariid catfishes
Karmann, I. (1994)Evolução e Dinâmica Atual do Sistema Cárstico do Alto Vale do Rio Ribeira de Iguape, Sudeste do Estado de São Paulo
Derijst, E. (1996)Notes on the type species of the mailed catfish genus Pareiorhaphis Miranda-Ribeiro 1918 (Pisces: Siluriformes: Loricariidae), with the introduction of Isbrueckichthys nom. nov.
Trajano, E., Secutti, S., Pereira, E.H.L. and Reis, R. E. (2008)A cave population of Isbrueckerichthys alipionis (Gosline, 1947) in the Upper Ribeira karst area, southeastern Brazil (Siluriformes: Loricariidae)
Roxo, F.F., Zawadzki, C.H., Guilherme, J., Silva, D.C., Chiachio, M.C., Foresti, F., and Oliveira, C. (2012)Molecular systematics of the armored neotropical catfish subfamily Neoplecostominae (Siluriformes: Loricariidae)
Pereira, H.L. and Reis, R.E. (2017)Morphology-based phylogeny of the suckermouth armored catfishes, with emphasis on the Neoplecostominae (Teleostei: Siluriformes: Loricariidae)
Trajano, E. (2021)Diversity of Brazilian troglobitic fishes: Models of colonization and differentiation in subterranean habitats
Zepon, T. and Bichuette, M.E. (2024)The role of turnover in structuring subterranean aquatic communities in Southeastern Brazil
Almeida, R.B., Azambuja, M., Nogaroto, V., Oliveira, C., Roxo, F.F., Zawadzki, C.H. and Vicari, M.R. (2024)DNA barcode shows discordant cases among morphological and molecular species identification in Isbrueckerichthys (Siluriformes: Loricariidae)