Hidden diversity and evolutionary diversification in Phalloceros harpagos Lucinda (Cyprinodontiformes: Poeciliidae)

Author:

de Oliveira Isadora Janolio1,Diamante Nathália Alves2,Fabrin Thomaz Mansini Carrenho1,Frota Augusto1,da Graça Weferson Júnio134,de Oliveira Alessandra Valéria135ORCID,Prioli Sônia Maria Alves Pinto235,Prioli Alberto José135

Affiliation:

1. Postgraduate Program in Ecology of Continental Aquatic Environments, Biological Sciences Center Universidade Estadual de Maringá Maringá Brazil

2. Postgraduate Program in Comparative Biology, Biological Sciences Center Universidade Estadual de Maringá Maringá Brazil

3. Limnology, Ichthyology and Aquaculture Research Nucleus (Nupélia), Biological Sciences Center Universidade Estadual de Maringá Maringá Brazil

4. Department of Biology, Biological Sciences Center Universidade Estadual de Maringá Maringá Brazil

5. Department of Biotechnology, Genetics and Cell Biology Biological Sciences Center, Universidade Estadual de Maringá Maringá Brazil

Abstract

AbstractThe distribution of Phalloceros species is generally allopatric and restricted; however, Phalloceros harpagos has a wide distribution and exhibits morphological variation among populations from different Brazilian river basins. Different species delimitation tests using cytochrome C oxidase subunit I gene sequences indicated that P. harpagos is a species complex that comprises between 7 and 9 phylogroups. The separation of the Paraná and Paraíba do Sul River basins most likely caused the diversification of these phylogroups in the Miocene period. The majority of phylogroups have a narrow distribution; however, one phylogroup has a broad distribution, being found primarily in the Paraná, Ribeira de Iguape, and Iguaçu River basins. This distribution can be attributed to possible headwater capture events caused by the reactivation of faults and erosion in the quaternary. Estimates about the times of divergence based on molecular data could be used to infer the biogeographic processes related to the diversification of South American freshwater fish.

Funder

Conselho Nacional de Desenvolvimento Científico e Tecnológico

Fundação Araucária

Publisher

Wiley

Subject

Ecology,Aquatic Science,Ecology, Evolution, Behavior and Systematics

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