Scientia Marina, Vol 69, No 4 (2005)

Molecular validation of the specific status of Parablennius sanguinolentus and Parablennius parvicornis (Pisces: Blenniidae)


https://doi.org/10.3989/scimar.2005.69n4519

Federico Almada
Unidade de Eco-Etologia, Instituto Superior de Psicologia Aplicada - Instituto de Oceanografia, Faculdade de Ciências da Universidade de Lisboa, Portugal

Vitor Carvalho Almada
Unidade de Eco-Etologia, Instituto Superior de Psicologia Aplicada, Portugal

Vera Domingues
Unidade de Eco-Etologia, Instituto Superior de Psicologia Aplicada, Portugal

Alberto Brito
University of La Laguna, Dpto. Biologia Animal, Spain

Ricardo Serrao Santos
IMAR and Departamento de Oceanografia e Pescas da Universidade dos Açores, Portugal

Abstract


Parablennius sanguinolentus and P. parvicornis have been classified as either two distinct species or as two sub-species depending on the different criteria used to classify them. An analysis of fragments of mitochondrial 12S and 16S rDNA showed that the genetic distance between samples of P. sanguinolentus and P. parvicornis is similar or higher than those found for other blenniids that are widely recognized as distinct species. These results, together with the distinct geographical distributions and meristic differences, support the conclusion that P. sanguinolentus and P. parvicornis should be considered as two different species.

Keywords


speciation; 12S mitochondrial rDNA; 16S mitochondrial rDNA; glaciations; NE Atlantic; Mediterranean

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