The Diversity of Coolia spp. (Dinophyceae Ostreopsidaceae) in the Central Great Barrier Reef Region

We report that the central Great Barrier Reef harbors a high diversity of Coolia species, including two species known to be capable of toxin production, as well as the non-toxic C. canariensis

Paolo Momigliano; Leanne Sparrow; David Blair; Kirsten Heimann

2013

Scholarcy highlights

  • Marine dinoflagellates have been extensively studied for a number of reasons
  • We discovered that the central Great Barrier Reef harbors a high diversity of Coolia species, including three known species as well as a cryptic species which is morphologically very similar to C. monotis and C. malayensis but phylogenetically very distinct
  • Based on morphology and molecular data, four strains of Coolia spp. were isolated and cultured from GBR waters. Three of these were identified based on morphology and molecular data as C. malayensis, C. canariensis and C. tropicalis
  • One culture is morphologically very similar to both C. malayensis and C. monotis, it is clearly distinct based on genetic data
  • The central GBR harbours a high diversity of Coolia species: of the five species that have been described to date, three occur in these waters
  • While no sequence data are available for C. areolata, it seems likely that this species is more closely related to C. tropicalis and C. canariensis based on morphology
  • The ITS region of NQAIF103 was aligned with the ITS sequences of the closely related C. malayensis and C. monotis available in GenBank

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