Morphological and molecular identification of Geophagus sveni Lucinda, Lucena &amp;amp; Assis, 2010 (Cichlidae, Cichliformes) from the Paran&amp;aacute; river basin, Argentina

Benítez, Mauricio Fabián; Cerutti, Juan C.; Aichino, Danilo; Baldo, Diego

doi:10.15560/14.6.1058

Cited by 3 publications

(1 citation statement)

References 14 publications

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“…2 ). Benitez et al (2018) found minimal or no genetic divergence between these individuals and suggested that all specimens were G. sveni misidentified as G . “ proximus ”.…”

Section: Discussionmentioning

confidence: 99%

Mapping the hidden diversity of the Geophagus sensu stricto species group (Cichlidae: Geophagini) from the Amazon basin

Ximenes

Bittencourt

Machado

et al. 2021

PeerJ

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South American freshwater ichthyofauna is taxonomically the most diverse on the planet, yet its diversity is still vastly underestimated. The Amazon basin alone holds more than half of this diversity. The evidence of this underestimation comes from the backlog of morphologically distinct, yet undescribed forms deposited in museum collections, and from DNA-based inventories which consistently identify large numbers of divergent lineages within even well-studied species groups. In the present study, we investigated lineage diversity within the Geophagus sensu stricto species group. To achieve these objectives, we analyzed 337 individuals sampled from 77 locations within and outside the Amazon basin representing 10 nominal and six morphologically distinct but undescribed species. We sequenced the mitochondrial cytochrome c oxidase subunit I (COI) and delimited lineages using four different single-locus species discovery methods (mPTP-15 lineages; LocMin-14 lineages; bGMYC-18 lineages; and GMYC-30 lineages). The six morphologically distinct but undescribed species were also delimited by the majority of the species discovery methods. Five of these lineages are restricted to a single collection site or a watershed and their habitats are threatened by human activities such as deforestation, agricultural activities and construction of hydroelectric plants. Our results also highlight the importance of combining DNA and morphological data in biodiversity assessment studies especially in taxonomically diverse tropical biotas.

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“…2 ). Benitez et al (2018) found minimal or no genetic divergence between these individuals and suggested that all specimens were G. sveni misidentified as G . “ proximus ”.…”

Section: Discussionmentioning

confidence: 99%

Mapping the hidden diversity of the Geophagus sensu stricto species group (Cichlidae: Geophagini) from the Amazon basin

Ximenes

Bittencourt

Machado

et al. 2021

PeerJ

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A new species of Geophagus (Teleostei: Cichlidae): Naming a cichlid species widely known in the aquarium hobby as ‘Geophagus sp. Tapajos red head’

Chuctaya

Nitschke

Andrade

et al. 2022

Journal of Fish Biology

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A new species of Geophagus sensu stricto is described from the Tapajos River basin, Brazil, elevating the number of species of the genus to 21. The new species is of commercial importance and is known in the aquarist trade as Geophagus 'red head'. The new species is diagnosed using an integrative approach, based on mitochondrial DNA analysis along with morphological evidence. The new species is distinguished from all congeners by the absence of markings on the head, the bar pattern composed by nine vertical bars on the flanks and the presence of distinct longitudinal bands in the caudal fin. Additionally, it shows a genetic distance of at least 2.0% in cytochrome b gene sequences from its closest congeners. Molecular analysis including most genera of Cichlidae from South America corroborates that the new species belongs to the group of Geophagus sensu stricto.

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Morphological Identification and DNA Barcoding Confirm the Discovery of Ambassis dussumieri (Ambassidae) in the Persian Gulf

Afrand,

Sourinejad

2023

J. Ichthyol.

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Morphological and molecular identification of Geophagus sveni Lucinda, Lucena & Assis, 2010 (Cichlidae, Cichliformes) from the Paraná river basin, Argentina

Cited by 3 publications

References 14 publications

Mapping the hidden diversity of the Geophagus sensu stricto species group (Cichlidae: Geophagini) from the Amazon basin

Mapping the hidden diversity of the Geophagus sensu stricto species group (Cichlidae: Geophagini) from the Amazon basin

A new species of Geophagus (Teleostei: Cichlidae): Naming a cichlid species widely known in the aquarium hobby as ‘Geophagus sp. Tapajos red head’

Morphological Identification and DNA Barcoding Confirm the Discovery of Ambassis dussumieri (Ambassidae) in the Persian Gulf

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