Journal article
Evolutionary Relationships Among the Amazonian Catfish Genus Hypophthalmus Cuvier, 1829 (Siluriformes, Pimelodidae) Suggest Diversification During Plio‐Pleistocene
Zoologica scripta, v 54(6), pp 840-850
22 Jul 2025
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Abstract
ABSTRACT
The present study evaluated the phylogenetic relationships among the six valid species of catfish of the genus Hypophthalmus, estimated the divergence times among the different taxa and assessed the processes that influenced the evolution of the group. All the phylogenetic analyses, based on 6803 base pairs, including three mitochondrial and seven nuclear markers, support the monophyly of Hypophthalmus, and the arrangement of the species in two clades, one containing Hypophthalmus oremaculatus + Hypophthalmus donascimientoi, and the other, including Hypophthalmus marginatus + Hypophthalmus edentatus, which is the sister group of Hypophthalmus celiae, with Hypophthalmus fimbriatus appearing as the most divergent of this clade. These findings indicate that the genus originated some 4.4 million years ago (Ma), during the Pliocene, while most species diversified during the Pleistocene. The origin and diversification of Hypophthalmus coincided with the formation of the modern Amazon basin and the climatic fluctuations of the Plio‐Pleistocene, which likely determined modifications in the dynamics of the local rivers and influenced the evolution and diversification of the genus.
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Details
- Title
- Evolutionary Relationships Among the Amazonian Catfish Genus Hypophthalmus Cuvier, 1829 (Siluriformes, Pimelodidae) Suggest Diversification During Plio‐Pleistocene
- Creators
- Bianca A. Vale - Universidade Federal do ParáJohn G. Lundberg - Drexel University, Academy of Natural Sciences of Drexel UniversityMarcelo S. Rocha - Universidade do Estado do AmazonasIracilda Sampaio - Universidade Federal do ParáSimoni Santos - Universidade Federal do Pará
- Publication Details
- Zoologica scripta, v 54(6), pp 840-850
- Publisher
- Wiley
- Number of pages
- 11
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Biodiversity, Earth, and Environmental Science (BEES); Academy of Natural Sciences of Drexel University
- Web of Science ID
- WOS:001533202400001
- Scopus ID
- 2-s2.0-105011250888
- Other Identifier
- 991022065620804721
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- Collaboration types
- Domestic collaboration
- International collaboration
- Web of Science research areas
- Evolutionary Biology
- Zoology