title: Molecular evidence of two new species of Eleotris (Gobiiformes: Eleotridae) in the western Atlantic.
abstract: Fishes of the genus Eleotris present highly conserved morphology, which may make their recognition difficult. Here, two cryptic Eleotris lineages from five locations along the coast of Brazil were identified using the COI gene and two nuclear fragments. High bootstrap and posteriori values supported those lineages, and the genetic distance of COI varied from 6% between the two lineages to 14.1% from other western Atlantic Eleotris species, such as E. pisonis, E. amblyopsis and E. perniger. The reciprocal monophyly for both types of markers, the divergences between those lineages and the other Eleotris species from the Brazilian coast may, in fact, represent two new cryptic species. The cryptic lineages and currently recognized species were collected in distinct environments, reinforcing the need for further sampling to understand the real distribution of each taxon.
authors: Laboratório de Genética e Biologia Molecular, Instituto de Estudos Costeiros (IECOS), Universidade Federal do Pará, Campus de Bragança, Alameda Leandro Ribeiro, SN, Aldeia, Bragança, Pará, Brazil. Electronic address: auryceia@yahoo.com.br.
authors: Aurycéia
authors: A
authors: Guimarães-Costa
authors: Laboratório de Evolução, Instituto de Estudos Costeiros (IECOS), Universidade Federal do Pará, Campus de Bragança, Alameda Leandro Ribeiro, SN, Aldeia, Bragança, Pará, Brazil; CIBIO-InBIO, Centro de Investigação em Biodiversidade e Recursos Genéticos, Campus Agrário de Vairão, Universidade do Porto, 4485-661 Vairão, Portugal. Electronic address: mvallino@ufpa.br.
authors: Marcelo
authors: M
authors: Vallinoto
authors: Laboratório de Biologia Pesqueira - Manejo de Recursos Aquáticos, Universidade Federal do Pará, Campus do Guamá, Av. Perimetral. 2651, Belém, Pará, Brazil. Electronic address: tgiarrizzo@gmail.com.
authors: Tommaso
authors: T
authors: Giarrizzo
authors: Fish Systematics & Conservation Lab, Texas A&M University, 6300 Ocean Dr, Corpus Christi, TX, United States. Electronic address: frank.pezold@tamucc.edu.
authors: Frank
authors: F
authors: Pezold
authors: Laboratório de Genética e Biologia Molecular, Instituto de Estudos Costeiros (IECOS), Universidade Federal do Pará, Campus de Bragança, Alameda Leandro Ribeiro, SN, Aldeia, Bragança, Pará, Brazil. Electronic address: horacio@ufpa.br.
authors: Horacio
authors: H
authors: Schneider
authors: Laboratório de Genética e Biologia Molecular, Instituto de Estudos Costeiros (IECOS), Universidade Federal do Pará, Campus de Bragança, Alameda Leandro Ribeiro, SN, Aldeia, Bragança, Pará, Brazil. Electronic address: ira@ufpa.br.
authors: Iracilda
authors: I
authors: Sampaio
mesh_terms: D000818:Animals; D001267:Atlantic Ocean; D001938:Brazil; D002467:Cell Nucleus / Q000235:genetics; D004272:DNA, Mitochondrial / Q000235:genetics; D019143:Evolution, Molecular; D005399:Fishes / Q000145:classification* / Q000235:genetics*; D010802:Phylogeny; D013045:Species Specificity
chemical_list: D004272:DNA, Mitochondrial
keywords: COI; Cryptic diversity; Mitochondrial DNA; New species; Nuclear DNA; Spinycheek