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Keywords:

  • Alexandrium catenella;
  • microsatellite;
  • paralytic shellfish poisoning;
  • phytoplankton;
  • SSR;
  • toxic dinoflagellate

Abstract

The outbreak of paralytic shellfish poisoning caused by the toxic dinoflagellate Alexandrium catenella (Dinophyceae) is a worldwide concern from the economic and food hygiene point of view. To assess the dispersal mechanism, a population genetic study using highly polymorphic genetic markers is one of the crucial approaches. We isolated 12 polymorphic microsatellites from this species. These loci provide one class of highly variable genetic marker as the number of alleles ranged from three to 12 and the estimate of gene diversity was from 0.248 to 0.897 across the 12 microsatellites; we consider that these loci have a potential to detail the genetic structure and gene flow among A. catenella populations.