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Keywords:

  • Laminaria japonica;
  • microsatellite DNA;
  • molecular marker;
  • simple sequence repeat

Abstract

Eighteen polymorphic microsatellite DNA markers were developed for Laminaria japonica, a brown alga cultured intensively in China. These markers are independent from each other and are moderately variable in L. japonica. The number of alleles and gene diversity detected in 53 gametophyte clones representing the varieties of L. japonica cultured once or currently in China range from two to nine and from 0.355 to 0.768, respectively. These markers will certainly facilitate the management and exploitation of the germplasm resource of L. japonica conserved indoor as gametophyte clones and the determination of the genetic diversity of L. japonica naturally distributed.