A new species of Tetragonopterus Cuvier, 1816 (Characiformes: Characidae: Tetragonopterinae) from the rio Jari, Amapá, northern Brazil

Melo, Bruno F.; Benine, Ricardo C.; Mariguela, Tatiane Casagrande; Oliveira, Cláudio

doi:10.1590/s1679-62252011000100002

Cited by 901 publications

(62 citation statements)

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“…Bickford et al (2007) conveyed that in the past two decades there has been an exponential increase in the identification and recognition of cryptic species with the advancement and use of molecular tools. Examples of such integration are increasingly common in fish, such as in the description of Gymnotus sylvius (Albert et al, 1999), Gymnotus pantanal (Fernandes et al, 2005), Moenkhausia forestii (Benine et al, 2009), and Tetragonopterus carvalhoi (Melo et al, 2011). These examples are particularly relevant, since they refer to new species from quite complex fish genera which were described after the accumulation of morphological and molecular evidence, demonstrating the singularity of the studied samples regarding their respective counterparts.…”

Section: Introductionmentioning

confidence: 97%

DNA barcode of Parodontidae species from the La Plata river basin - applying new data to clarify taxonomic problems

et al. 2013

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In the past years, DNA barcoding has emerged as a quick, accurate and efficient tool to identify species. Considering the difficulty in identifying some Parodontidae species from the La Plata basin and the absence of molecular data for the group, we aimed to test the effectiveness of DNA barcoding and discuss the importance of using different approaches to solve taxonomic problems. Eight species were analyzed with partial sequences of Cytochrome c oxidase I. The mean intraspecific K2P genetic distance was 0.04% compared to 4.2% for mean interspecific K2P genetic distance. The analyses of distance showed two pairs of species with K2P genetic divergence lower than 2%, but enough to separate these species. Apareiodon sp. and A. ibitiensis, considered as the same species by some authors, showed 4.2% genetic divergence, reinforcing their are different species. Samples of A. affinis from the Uruguay and Paraguay rivers presented 0.3% genetic divergence, indicating a close relationship between them. However, these samples diverged 6.1% from the samples of the upper Paraná River, indicating that the latter represents a potentially new species. The results showed the effectiveness of the DNA barcoding method in identifying the analyzed species, which, together with the morphological and cytogenetic available data, help species identification.Nos últimos anos o DNA barcoding surgiu como uma ferramenta rápida, precisa e eficiente para identificar espécies. Considerando a dificuldade na identificação de algumas espécies de Parodontidae da bacia do rio da Prata e da ausência de dados moleculares para o grupo, testamos a eficácia do código de barras de DNA e discutimos a importância do uso de diferentes abordagens para resolver problemas taxonômicos. Oito espécies foram analisadas com sequencias parciais do gene citocromo c oxidase I. A distância genética média K2P intraespecífica foi de 0,04% comparado com 4,2% para distância genética média K2P interespecífica. As análises de distância mostraram dois pares de espécies com divergência genética K2P inferior a 2%, mas o suficiente para separar estas espécies. Apareiodon sp. e A. ibitiensis, consideradas a mesma espécie por alguns autores, mostraram 4,2% de divergência genética, confirmando serem espécies diferentes. Amostras de A. affinis dos rios Uruguai e Paraguai apresentaram 0,3% de divergência genética, indicando um maior grau de relação entre elas, no entanto, esses exemplares divergiram em 6,1% em relação aos exemplares do alto rio Paraná, o que indica que estes últimos representam uma espécie potencialmente nova. Os resultados mostraram a eficácia do método de DNA barcoding na identificação das espécies analisadas, os quais, em conjunto com os dados morfológicos e citogenéticos disponíveis auxiliam na identificação inequívoca das espécies.

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Section: Introductionmentioning

confidence: 97%

DNA barcode of Parodontidae species from the La Plata river basin - applying new data to clarify taxonomic problems

et al. 2013

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“…Recent taxonomic studies have employed molecular analysis methods, commonly using the mitochondrial DNA gene cytochrome oxidase c subunit 1, as a supplement to the morphological data in the recognition of new fish species (e.g., Victor, 2007;Benine et al, 2009;Melo et al, 2011). This practice is very useful for morphologically similar species, such as in the case of the species of Listrura.…”

Section: Introductionmentioning

confidence: 99%

A new glanapterygine catfish of the genus Listrura (Siluriformes: Trichomycteridae) from southeastern Brazil, corroborated by morphological and molecular data

Villa-Verde¹,

Lazzarotto

Lima

2012

Neotrop. ichthyol.

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Listrura costai, new species, is described from small streams in a swampy coastal plain in the rio Jurumirim basin, Angra dos Reis Municipality, Rio de Janeiro State, southeastern Brazil. The new species is morphologically very similar to L. nematopteryx and L. picinguabae, all possessing only one long pectoral-fin ray. It differs from its congeners by possessing an autapomorphic character: first hypobranchial with an anterior process (vs. process absent). Other features such as coloration, numbers of opercular and interopercular odontodes, number of anal-fin rays, head length, and shape of some bone structures help to distinguish the new species from L. nematopteryx and L. picinguabae. Molecular analyses using partial sequences of the mitochondrial DNA genes cytochrome oxidase c subunit 1 and cytochrome b from the new species and morphologically similar species are provided. The results about both molecular markers corroborate the validity of the new species by significant genetic distance values between it and congeneric species, and by its phylogenetic position in the hypotheses performed by maximum-parsimony method.Listrura costai, espécie nova, é descrita de exemplares obtidos em pequenos córregos restritos à bacia do rio Jurumirim, município de Angra dos Reis, estado do Rio de Janeiro, sudeste do Brasil. A espécie nova é morfologicamente muito similar a L. nematopteryx e L. picinguabae, todas possuindo um único e longo raio na nadadeira peitoral. Difere-se dos seus congêneres por possuir um caráter autapomórfico: primeiro hipobranquial com um processo anterior (vs. processo ausente). Outras características como coloração, número de odontóides operculares e interoperculares, número de raios na nadadeira anal, e forma de algumas estruturas ósseas ajudam a diferenciar a nova espécie de L. nematopteryx e L. picinguabae. Análises moleculares usando sequências parciais dos genes mitocondriais citocromo oxidase c subunidade 1 e citocromo b da nova espécie e espécies morfologicamente similares são apresentadas. Os resultados de ambos os marcadores moleculares corroboram a validade da espécie nova pelos valores significativos das distâncias genéticas entre esta e as espécies congenéricas, e por sua posição filogenética nas hipóteses feitas pelo o método de máxima parcimônia.

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“…Eigenmann (1917) stated Moenkhausia as distinct from Tetragonopterus Cuvier regarding the lateral line direction (i.e., line straight vs. slightly curved downwards). Reis (2003) restricted Tetragonopterus to two species (T. argenteus and T. chalceus Spix & Agassiz), and more recently new species have been proposed (e.g., Melo et al, 2011;Silva & Benine, 2011;Silva et al, 2013). Melo et al (2011) discussed the presence of three supraneurals and one branched laterosensory canal on the sixth infraorbital bone as putative synapomorphies for Tetragonopterus.…”

Section: Discussionmentioning

confidence: 99%

“…76). Moenkhausia doceana has 3-4 supraneurals (mode 4) and no branched laterosensory canal on sixth infraorbital, and in this way the species does not fit in a monoplyletic Tetragonopterus clade (sensu Melo et al, 2011).…”

Section: Discussionmentioning

confidence: 99%

Redescription of Moenkhausia doceana(Steindachner, 1877) (Ostariophysi: Characiformes): a characid from the Northeastern Mata Atlântica ecoregion, Brazil

2014

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Moenkhausia doceana is redescribed from the Northeastern Mata Atlântica ecoregion drainages in Espírito Santo, Minas Gerais, and Bahia states. The species is distinguished from its congeners by a long anal fin, with 29-34 (mode 32) branched rays; 4-7 (mode 5) maxillary teeth; and 7-8 (mode 7) scale rows above lateral line at dorsal-fin origin. Phylogenetic hypothesis about its relationships among the Characidae is also presented and commented.Moenkhausia doceana é redescrita das drenagens da ecorregião Mata Atlântica Nordeste nos estados do Espírito Santo, Minas Gerais e Bahia. A espécie distingue-se das demais congêneres por apresentar uma nadadeira anal longa, com 29-34 (moda 32) raios ramificados; 4-7 (moda 5) dentes maxilares e 7-8 séries horizontais de escamas acima da linha lateral até a origem da nadadeira dorsal. Hipótese filogenética sobre suas relações em Characidae é também apresentada e comentada.

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A new species of Tetragonopterus Cuvier, 1816 (Characiformes: Characidae: Tetragonopterinae) from the rio Jari, Amapá, northern Brazil

Cited by 901 publications

References 20 publications

DNA barcode of Parodontidae species from the La Plata river basin - applying new data to clarify taxonomic problems

DNA barcode of Parodontidae species from the La Plata river basin - applying new data to clarify taxonomic problems

A new glanapterygine catfish of the genus Listrura (Siluriformes: Trichomycteridae) from southeastern Brazil, corroborated by morphological and molecular data

Redescription of Moenkhausia doceana(Steindachner, 1877) (Ostariophysi: Characiformes): a characid from the Northeastern Mata Atlântica ecoregion, Brazil

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