DNA barcoding of Brazilian sea turtles (Testudines)

Genetics and Molecular Biology

Sarah M. Vargas¹  Flávia C.f. Araújo¹  Fabrício R. Santos¹ 

[1] ,Universidade Federal de Minas Gerais Instituto de Ciências Biológicas Laboratório de Biodiversidade e Evolução MolecularBelo Horizonte MG ,Brazil

关键词: barcodes;    sea turtles;    Cytochrome Oxidase c subunit I (COI);   

DOI  :  10.1590/S1415-47572009005000050

来源: SciELO

【 摘 要 】

Five out of the seven recognized species of sea turtles (Testudines) occur on the Brazilian coast. The Barcode Initiative is an effort to undertake a molecular inventory of Earth biodiversity. Cytochrome Oxidase c subunit I (COI) molecular tags for sea turtle species have not yet been described. In this study, COI sequences for the five species of sea turtles that occur in Brazil were generated. These presented widely divergent haplotypes. All observed values were on the same range as those already described for other animal groups: the overall mean distance was 8.2%, the mean distance between families (Dermochelyidae and Cheloniidae) 11.7%, the mean intraspecific divergence 0.34%, and the mean distance within Cheloniidae 6.4%, this being 19-fold higher than the mean divergence observed within species. We obtained species-specific COI barcode tags that can be used for identifying each of the marine turtle species studied.

【 授权许可】

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