genetic variant
1.The internal transcribed spacer (ITS) regions of nuclear ribosomal DNA (including 5.8 S rDNA) of 6 Laminaria cultivars (CUL002, CUL860, CUL1170, CUL901, CUL018) with clear genetic backgrounds and variant phenotypes, as well as L. longissima planted in China were amplified and sequenced. The phylogenetic relationships of 7 Laminaria spp.

