Molecular evidence of two new species of Eleotris (Gobiiformes: Eleotridae) in the western Atlantic

Aurycéia Guimarães-Costa; Marcelo Vallinoto; Tommaso Giarrizzo; Frank Pezold; Horacio Schneider; Iracilda Sampaio

doi:10.1016/j.ympev.2016.01.014

Molecular evidence of two new species of Eleotris (Gobiiformes: Eleotridae) in the western Atlantic

Mol Phylogenet Evol. 2016 May:98:52-6. doi: 10.1016/j.ympev.2016.01.014. Epub 2016 Feb 4.

Authors

Aurycéia Guimarães-Costa¹, Marcelo Vallinoto², Tommaso Giarrizzo³, Frank Pezold⁴, Horacio Schneider⁵, Iracilda Sampaio⁶

Affiliations

¹ 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.
² 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.
³ 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.
⁴ Fish Systematics & Conservation Lab, Texas A&M University, 6300 Ocean Dr, Corpus Christi, TX, United States. Electronic address: frank.pezold@tamucc.edu.
⁵ 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.
⁶ 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.

PMID: 26851798
DOI: 10.1016/j.ympev.2016.01.014

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.

Keywords: COI; Cryptic diversity; Mitochondrial DNA; New species; Nuclear DNA; Spinycheek.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Animals
Atlantic Ocean
Brazil
Cell Nucleus / genetics
DNA, Mitochondrial / genetics
Evolution, Molecular*
Fishes / classification*
Fishes / genetics*
Phylogeny*
Species Specificity

Substances

DNA, Mitochondrial