da Silva MA, Ottoni FP, Mattos JLO, Indermaur A, Katz AM, Salzburger W. Species diversity and phylogeography of the
Australoheros autrani group (Teleostei, Cichlidae) in eastern Brazil.
Ichthyol Res 2022;
70:378-385. [PMID:
37384314 PMCID:
PMC10293369 DOI:
10.1007/s10228-022-00888-9]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Revised: 08/15/2022] [Accepted: 08/17/2022] [Indexed: 06/30/2023]
Abstract
Cichlid fishes are an important model system in evolutionary biology, primarily because of their exceptional diversity. However, while some cichlid assemblages, such as the ones of the African Great Lakes, have received considerable attention, others are not well studied, including many riverine species. Here, we focus on the Australoheros autrani species group and first report a new record of Australoheros in the upper Paranaíba River drainage, extending the known distribution range of this genus. Through Bayesian inference and maximum likelihood phylogenetic analyses of the mitochondrial cytochrome b gene of these specimens as well as available sequences, we assigned the newly discovered population to Australoheros barbosae. We corroborate the monophyly of the A. autrani species group and the presence of three species in the upper/middle Paraíba do Sul River basin as well as molecular diagnostic characters for each. Finally, we provide evidence for a recent expansion of A. barbosae.
Supplementary Information
The online version contains supplementary material available at 10.1007/s10228-022-00888-9.
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