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Microsatellite markers for the cosmopolitan marine diatom Pseudo-nitzschia pungens


P. K. Hayes. Fax: + 44 (0)117 9257374; E-mail:


Very little information is available on the genetic structure of populations of phytoplankton species. Here we report the characterization of six polymorphic microsatellite loci in the marine diatom, Pseudo-nitzschia pungens, using clones (between 87 and 213 per locus) isolated from spring blooms in the North Sea. The number of alleles per locus ranged from five to 19 and observed heterozygosities ranged from 0.55 to 0.86.