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Conservation Genetics Resources

, Volume 10, Issue 4, pp 663–666 | Cite as

Mitochondrial genome of the critically endangered smalltooth sawfish Pristis pectinata from Veracruz, Mexico

  • Píndaro Díaz-Jaimes
  • Ramón Bonfil
  • Paola Palacios-Barreto
  • Nataly Bolaño-Martinez
  • Natalia J. Bayona-Vásquez
Technical Note

Abstract

Sawfishes, family Pristidae, occur in tropical and subtropical coastal marine, estuarine and freshwater ecosystems. The smalltooth sawfish (Pristis pectinata) has been wholly or nearly eliminated from large areas of its former range in the Atlantic Ocean by fishing pressure (trawl and inshore netting) and habitat modification. Here, we report the complete sequence of the mitochondrial genome of a specimen caught in Barra de Cazones by local fishermen, Veracruz, Mexico in 2015, where was thought to be almost extinct and compare it with the previously reported mitochondrial genome from an individual caught in Florida. The genome structure and composition of both specimens is almost identical, except for two nucleotide variations remarking the low variation between regions for this species. The mitochondrial genome has a total length of 16803 nucleotides; in average the base composition was A 32.1%, T 28.9%, C 26.0% and G 13.1%, containing 13 protein-coding genes, 2 rRNA genes; 22 tRNA genes.

Keywords

Batoidea Pristidae Sawfish Nucleotide divergence Genome structure 

Abbreviations

rRNA

Ribosomal RNA

tRNA

Transfer RNA

D-loop

Control region

Notes

Acknowledgements

Special thanks go to the fishermen Constantino Correa Santes, Sabino Diego Bautista, and Senovio Guerrero Domínguez, and to Lic. Saaid Hernández Osorio all from Barra de Cazones, Veracruz, for rescuing the fish alive and facilitating collection of tissue samples. Financial aid for collection was provided by Océanos Vivientes, A.C. the Save Our Seas Foundation and Comisión Nacional de Áreas Naturales Protegidas (CONANP). We thank the Comisión Nacional de Pesca (CONAPESCA) and Dirección General de Vida Silvestre (DGVS) for research and collection permits. Genetic work was supported by PDJ Institutional Grant 611.

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Copyright information

© Springer Science+Business Media B.V. 2017

Authors and Affiliations

  1. 1.Laboratorio de Genética de Organismos Acuáticos, Instituto de Ciencias del Mar y LimnologíaUniversidad Nacional Autónoma de MéxicoMexicoMexico
  2. 2.Océanos Vivientes A. C. [Living Oceans Civil Association]MexicoMexico
  3. 3.Posgrado en Ciencias del Mar y Limnología, Instituto de Ciencias del Mar y limnologíaUniversidad Nacional Autónoma de MéxicoMexicoMexico
  4. 4.Department of Environmental Health ScienceUniversity of GeorgiaAthensUSA

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