Phylogenetic relationships of the neon tetras Paracheirodon spp. (Characiformes: Characidae: Stethaprioninae), including comments on Petitella georgiae and Hemigrammus bleheri

ABSTRACT Neon tetras (Paracheirodon spp.) are three colorful characid species with a complicated taxonomic history, and relationships among the species are poorly known. Molecular data resolved the relationships among the three neon tetras, and strongly supported monophyly of the genus and its siste...

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Main Authors: Pedro Senna Bittencourt, Valéria Nogueira Machado, Bruce Gavin Marshall, Tomas Hrbek, Izeni Pires Farias
Format: Article
Language:English
Published: Sociedade Brasileira de Ictiologia 2020-06-01
Series:Neotropical Ichthyology
Subjects:
Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252020000200213&tlng=en
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author Pedro Senna Bittencourt
Valéria Nogueira Machado
Bruce Gavin Marshall
Tomas Hrbek
Izeni Pires Farias
author_facet Pedro Senna Bittencourt
Valéria Nogueira Machado
Bruce Gavin Marshall
Tomas Hrbek
Izeni Pires Farias
author_sort Pedro Senna Bittencourt
collection DOAJ
description ABSTRACT Neon tetras (Paracheirodon spp.) are three colorful characid species with a complicated taxonomic history, and relationships among the species are poorly known. Molecular data resolved the relationships among the three neon tetras, and strongly supported monophyly of the genus and its sister taxon relationship to Brittanichthys. Additionally, the sister-taxon relationship of the rummy-nose tetras Hemigrammus bleheri and Petitella georgiae was strongly supported by molecular and morphological data. Therefore, we propose to transfer the rummy-nose tetras H. bleheri and H. rhodostomus to the genus Petitella. Furthermore, Petitella georgiae is likely to be a species complex comprised of at least two species.
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spelling doaj.art-6272e63502a74f708842c6bfa908debb2022-12-21T17:22:43ZengSociedade Brasileira de IctiologiaNeotropical Ichthyology1982-02242020-06-0118210.1590/1982-0224-2019-0109Phylogenetic relationships of the neon tetras Paracheirodon spp. (Characiformes: Characidae: Stethaprioninae), including comments on Petitella georgiae and Hemigrammus bleheriPedro Senna Bittencourthttps://orcid.org/0000-0002-4074-3541Valéria Nogueira Machadohttps://orcid.org/0000-0003-4020-094XBruce Gavin Marshallhttps://orcid.org/0000-0001-7915-4894Tomas Hrbekhttps://orcid.org/0000-0003-3239-7068Izeni Pires Fariashttps://orcid.org/0000-0002-1416-4351ABSTRACT Neon tetras (Paracheirodon spp.) are three colorful characid species with a complicated taxonomic history, and relationships among the species are poorly known. Molecular data resolved the relationships among the three neon tetras, and strongly supported monophyly of the genus and its sister taxon relationship to Brittanichthys. Additionally, the sister-taxon relationship of the rummy-nose tetras Hemigrammus bleheri and Petitella georgiae was strongly supported by molecular and morphological data. Therefore, we propose to transfer the rummy-nose tetras H. bleheri and H. rhodostomus to the genus Petitella. Furthermore, Petitella georgiae is likely to be a species complex comprised of at least two species.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252020000200213&tlng=enBlood-red tetrasCharacidsNeon tetrasPhylogenyRummy-nose tetras
spellingShingle Pedro Senna Bittencourt
Valéria Nogueira Machado
Bruce Gavin Marshall
Tomas Hrbek
Izeni Pires Farias
Phylogenetic relationships of the neon tetras Paracheirodon spp. (Characiformes: Characidae: Stethaprioninae), including comments on Petitella georgiae and Hemigrammus bleheri
Neotropical Ichthyology
Blood-red tetras
Characids
Neon tetras
Phylogeny
Rummy-nose tetras
title Phylogenetic relationships of the neon tetras Paracheirodon spp. (Characiformes: Characidae: Stethaprioninae), including comments on Petitella georgiae and Hemigrammus bleheri
title_full Phylogenetic relationships of the neon tetras Paracheirodon spp. (Characiformes: Characidae: Stethaprioninae), including comments on Petitella georgiae and Hemigrammus bleheri
title_fullStr Phylogenetic relationships of the neon tetras Paracheirodon spp. (Characiformes: Characidae: Stethaprioninae), including comments on Petitella georgiae and Hemigrammus bleheri
title_full_unstemmed Phylogenetic relationships of the neon tetras Paracheirodon spp. (Characiformes: Characidae: Stethaprioninae), including comments on Petitella georgiae and Hemigrammus bleheri
title_short Phylogenetic relationships of the neon tetras Paracheirodon spp. (Characiformes: Characidae: Stethaprioninae), including comments on Petitella georgiae and Hemigrammus bleheri
title_sort phylogenetic relationships of the neon tetras paracheirodon spp characiformes characidae stethaprioninae including comments on petitella georgiae and hemigrammus bleheri
topic Blood-red tetras
Characids
Neon tetras
Phylogeny
Rummy-nose tetras
url http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252020000200213&tlng=en
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