This study reports some recent phylogeographical considerations on the genus Ostreopsis distribution worldwide, with particular attention to the Mediterranean Sea, and new recent advances on the quali-quantitiative detection of Ostreopsis species along coastal areas of the Mediterranean Sea based on the PCR and quantitative real time PCR (qrt-PCR) assays. It was found that O. cf. ovata is widely dispersed throughout tropical and warm temperate coastal areas. In the Atlantic/Mediterranean region it represents a panmictic population that is highly divergent from Indo-Pacific populations. Furthermore, we demonstrated that the developed qrt-PCR assay is specific, robust and high sample throughput for the quantification of the toxic O. cf. ovata in the environmental samples. This molecular approach may be considered alternative to traditional methods of microscopy and applied for the survey of benthic toxic microalgal species in marine ecosystems.
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Cryptogamie, Algologie
Vol. 33 • No. 2
May 2012
Vol. 33 • No. 2
May 2012
Benthic dinoflagellate
distribution
Mediterranean Sea
Ostreopsis
qRT-PCR
ribosomal genes
