Species delimitation in annual killifishes from the Brazilian Caatinga, the<i>Hypsolebias flavicaudatus</i>complex (Cyprinodontiformes: Rivulidae): implications for taxonomy and conservation

Costa, Wilson J. E. M.; Amorim, Pedro F.; Mattos, José Leonardo O.

doi:10.1080/14772000.2012.664177

Cited by 31 publications

(47 citation statements)

References 32 publications

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“…The most widespread molecular method used in taxonomy has been the DNA barcoding, which consists on the use of a single gene from mitochondrial DNA (cytochrome oxidase subunit I – COI) as a proxy for species differentiation (Hebert et al 2003). In fact, several studies have been carried out using molecular markers and new species have been delimited and/or described, in most cases, based both on molecular and morphological evidence (e.g., Costa and Amorim 2011, Costa et al 2012, Roxo et al 2012, Villa-Verde et al 2012, Castro-Paz et al 2014, Costa et al 2014, Benzaquem et al 2015, Mattos et al 2015, Costa et al 2017). …”

Section: Introductionmentioning

confidence: 99%

A new species of Hyphessobrycon Durbin from northeastern Brazil: evidence from morphological data and DNA barcoding (Characiformes, Characidae)

Guimarães¹,

Brito²,

Feitosa³

et al. 2018

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A new species of Hyphessobrycon is described for the upper Munim and Preguiças river basins, northeastern Brazil, supported by morphological and molecular species delimitation methods. This new species belongs to the Hyphessobrycon sensu stricto group, as it has the three main diagnostic character states of this assemblage: presence of a dark brown or black blotch on the dorsal fin, absence of a black midlateral stripe on its flank and the position of Weberian apparatus upward horizontal through dorsal margin of operculum. Our phylogenetic analysis also supported the allocation of the new species in this group; however, it was not possible to recover the species sister-group. Pristella maxillaris and Moenkhausia hemigrammoides were recovered as the sister-clade of the Hyphessobrycon sensu stricto group.

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Section: Introductionmentioning

confidence: 99%

A new species of Hyphessobrycon Durbin from northeastern Brazil: evidence from morphological data and DNA barcoding (Characiformes, Characidae)

Guimarães¹,

Brito²,

Feitosa³

et al. 2018

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“…According to Eschmeyer (), Hypsolebias consists of a species‐rich clade of South American annual fishes, comprising 47 species, which are found in the Middle São Francisco river basin and tributaries, the Middle Jequitinhonha river basin, the Middle and Upper Tocantins river basin, the Jaguaribe river basin, the coastal drainage basins of north‐eastern Brazil and the Parnaíba river basin (Costa ,b, , ,b; Costa et al . ).…”

Section: Discussionmentioning

confidence: 97%

Phylogenetic relationships of Simpsonichthys subgenera (Cyprinodontiformes, Rivulidae), including a proposal for a new genus

et al. 2016

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The systematic knowledge of Simpsonichthys has changed substantially in recent years, with five subgenera having been elevated to the genus category. In view of these taxonomic changes, the aim of the present study was to identify the phylogenetic relationships among this group in order to test a hypothesis of the division of Simpsonichthys. The ATPase 8 and 6 gene sequences of 53 specimens of Simpsonichthys, Xenurolebias, Ophthalmolebias, Spectrolebias and Hypsolebias genera were assessed. The final topology divided the Simpsonichthys subgenera into five clades: clade I (Hypsolebias antenori group and Ophtalmolebias), clade II (Simpsonichtys and Spectrolebias), clade III (Hypsolebias flammeus and H. magnificus groups), clade IV (H. notatus group) and clade V, which included the Xenurolebias genus as a sister group to all the other Simpsonichthys subgenera. Simpsonichthys, Spectrolebias and Hypsolebias could therefor not be described as monophyletic groups, as has been proposed in some hypotheses. The H. antenori, H. notatus and H. magnificus groups, however, were monophyletic. The molecular results also suggested that H. ocellatus belongs to the Hypsolebias flammeus group. The phylogenetic position of H. fasciatus suggested a new group within Hypsolebias, or possibly even a new genus. The characteristics of the Hypsolebias antenori group and their phylogenetic position suggested that only the species of this group should be included in the Hypsolebias genus. The basal position of the Hypsolebias notatus group and its morphological character may represent a new genus. Although the monophyletism of Simpsonichtys could not be recovered, the branches supported the division of the western and eastern clades, possibly due to allopatric speciation. These facts suggest the division of the genus into at least two major clades. In addition, the study of morphological and molecular data is suggested to obtain a better understanding of such complex organisms, and a major taxonomic review is required.

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“…melanophore and carotenoid-based pigments). Among Neotropical fishes, sexual dichromatism is commonly reported in representatives of the families Cichlidae (Lucena & Kullander, 1992;Kullander & Lucena, 2006;Kullander et al, 2009;Varella & Sabaj Pérez, 2014;Malabarba et al, 2015;Varella, 2016) and Cynolebiidae (Costa, 1998(Costa, , 2006(Costa, , 2007Costa et al, 2012). Sexually dichromatic males of these taxa develop a very bright colour pattern, often making them very popular in the aquarium trade.…”

Section: Discussionmentioning

confidence: 99%

A new sexually dichromatic miniature Hyphessobrycon (Teleostei: Characiformes: Characidae) from the Rio Formiga, upper Rio Juruena basin, Mato Grosso, Brazil, with a review of sexual dichromatism in Characiformes

Pastana

Dagosta

Esguícero

2017

Journal of Fish Biology

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Hyphessobrycon myrmex sp. nov., is described from the Rio Formiga, upper Rio Juruena, upper Rio Tapajós basin, Mato Grosso, Brazil. The new species can be distinguished from congeners by having the lower half of the body deeply pigmented with dark chromatophores, chromatophores concentrated above the anal fin and forming a broad, diffuse, dark midlateral stripe and by having a dense concentration of dark chromatophores along unbranched dorsal-fin rays and distal portions of the two or three subsequent branched rays. In life, H. myrmex exhibits a conspicuous sexual dichromatism, with adult males red to orange and females and immatures pale yellow. A list containing 108 sexually dichromatic taxa in six families of Characiformes is provided and the distribution of this poorly known type of dimorphism across the Characiformes is discussed.

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Species delimitation in annual killifishes from the Brazilian Caatinga, theHypsolebias flavicaudatuscomplex (Cyprinodontiformes: Rivulidae): implications for taxonomy and conservation

Cited by 31 publications

References 32 publications

A new species of Hyphessobrycon Durbin from northeastern Brazil: evidence from morphological data and DNA barcoding (Characiformes, Characidae)

A new species of Hyphessobrycon Durbin from northeastern Brazil: evidence from morphological data and DNA barcoding (Characiformes, Characidae)

Phylogenetic relationships of Simpsonichthys subgenera (Cyprinodontiformes, Rivulidae), including a proposal for a new genus

A new sexually dichromatic miniature Hyphessobrycon (Teleostei: Characiformes: Characidae) from the Rio Formiga, upper Rio Juruena basin, Mato Grosso, Brazil, with a review of sexual dichromatism in Characiformes

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