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Systematics of the electric fishes of the genus Eigenmannia Jordan & Evermann (Gymnotiformes: Sternopygidae): an integrated approach to morphological and molecular data

Grant number: 18/09445-9
Support type:Scholarships in Brazil - Post-Doctorate
Effective date (Start): February 01, 2019
Effective date (End): July 31, 2022
Field of knowledge:Biological Sciences - Zoology - Taxonomy of Recent Groups
Principal researcher:Naercio Aquino Menezes
Grantee:Guilherme Moreira Dutra
Home Institution: Museu de Zoologia (MZ). Universidade de São Paulo (USP). São Paulo , SP, Brazil
Associated research grant:16/19075-9 - Diversity and evolution of Gymnotiformes (Teleostei, Ostariophysi), AP.TEM


The methods of the traditional taxonomy will not be enough to satisfactorily describe the biodiversity on the planet before its extinction due to restrictions on the identification of species characterized by "taxonomic impediments". Alternatives such as integrative taxonomy that include molecular analyzes for species delimitation are proposed in order to enable the identification of biodiversity more quickly, including cryptic lineages. In this project we will address the taxonomy of the genus Eigenmannia. This genus is widely distributed in the neotropical region, occurring from Panama to northern Argentina. Currently, 20 species are recognized in the genus, and some studies indicate that the group may be more diverse than the one currently known. The lack of definition of valid species, especially those described in the 19th and early 20th centuries, maintains Eigenmannia with one of the most confusing taxonomies within the order. In addition to the taxonomic knowledge, the project also aims to investigate its phylogenetic relationships through a total evidence approach to solve questions about the delimitation of the genus as well as the phylogenetic relationships of its species.

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Scientific publications (7)
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
GUILHERME M. DUTRA; TIAGO M. S. FREITAS; BRUNO S. PRUDENTE; GILBERTO N. SALVADOR; MANUELA D. V. LEÃO; LUIZ A. W. PEIXOTO; MARINA B. MENDONÇA; ANDRÉ L. NETTO-FERREIRA; FABIO R. SILVA; LUCIANO F. A. MONTAG; et al. Avaliação rápida da ictiofauna em tributários do Rio Amazonas na porção sul do Escudo das Guianas no Pará, Brasil. Acta Amazonica, v. 50, n. 1, p. 24-36, . (18/09445-9, 18/05084-1, 16/19075-9)
WANDERLEY PEIXOTO, LUIZ ANTONIO; DUTRA, GUILHERME MOREIRA; DATOVO, ALESSIO; MENEZES, NAERCIO AQUINO; DE SANTANA, CARLOS DAVID. he Description of a Rare and Critically Endangered Species of Ghost Knifefish from the Amazon Basin (Ostariophysi: Gymnotiformes: Apteronotidae. ICHTHYOLOGY AND HERPETOLOGY, v. 109, n. 4, p. 1002-1009, . (16/19075-9, 09/54931-0, 18/05084-1, 18/09445-9)
DUTRA, GUILHERME MOREIRA; PEIXOTO, LUIZ ANTONIO WANDERLEY; OCHOA, LUZ ENEIDA; OHARA, WILLIAN MASSAHARU; DE SANTANA, CARLOS DAVID; MENEZES, NAERCIO AQUINO; DATOVO, ALESSIO. A new species of Amazonian bluntnose knifefish Brachyhypopomus (Gymnotiformes: Hypopomidae), with comments on its phylogenetic position. SYSTEMATICS AND BIODIVERSITY, v. 19, n. 4, . (18/05084-1, 18/23883-9, 16/19075-9, 18/09445-9, 11/50282-7)
DUTRA, GUILHERME M.; FREITAS, TIAGO M. S.; PRUDENTE, BRUNO S.; SALVADOR, GILBERTO N.; LEAO, V, MANUELA D.; PEIXOTO, LUIZ A. W.; MENDONCA, MARINA B.; NETTO-FERREIRA, ANDRE L.; SILVA, FABIO R.; MONTAG, LUCIANO F. A.; et al. Rapid assessment of the ichthyofauna of the southern Guiana Shield tributaries of the Amazonas River in Para, Brazil. Acta Amazonica, v. 50, n. 1, p. 24+, . (16/19075-9, 18/09445-9, 18/05084-1)
SILVA, IVANILZA DA SILVEIRA; NOGUEIRA, ACACIO FREITAS; NETTO-FERREIRA, ANDRE LUIZ; AKAMA, ALBERTO; DUTRA, GUILHERME MOREIRA. A new species of Hemiodus Muller (Characiformes: Hemiodontidae) from the lower Rio Xingu, Brazil. Zootaxa, v. 4751, n. 1, p. 172-180, . (16/19075-9, 18/09445-9)
DUTRA, GUILHERME MOREIRA; WANDERLEY PEIXOTO, LUIZ ANTONIO; ABRAHAO, VITOR PIMENTA; WOSIACKI, WOLMAR BENJAMIN; MENEZES, NAERCIO AQUINO; SANTANA, CARLOS DAVID. orphology-based phylogeny of Eigenmanniinae Mago-Leccia, 1978 (Teleostei: Gymnotiformes: Sternopygidae), with a new classificatio. JOURNAL OF ZOOLOGICAL SYSTEMATICS AND EVOLUTIONARY RESEARCH, v. 59, n. 8, . (18/05084-1, 18/09445-9, 16/19075-9)
TEIXEIRA, TULIO F.; DUTRA, GUILHERME M.; PENIDO, IAGO S.; DOS SANTOS, SERGIO A.; PESSALI, TIAGO C.. A new species of Hyphessobrycon (Characiformes, Characidae) from the upper Rio Jequitinhonha basin, Minas Gerais, Brazil, with comments on morphological similarities with Stethaprioninae species from headwater environments. Journal of Fish Biology, v. 96, n. 1, p. 140-153, . (18/09445-9, 16/19075-9)

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