ITS Sequence Analysis of Wild Auricularia Auricularia Strains from Heilongjiang Province

Analysis of rDNA internal transcribled spacer (rDNA ITS) was used to find diversity among 17 specimens isolated from Heilongjiang Province The results showed that there were base variances in ITS region among the tested strains, and with 17 variance loci in ITS region, besides the fragment of 5.8S rDNA. Phylogenetic analyses indicated that 17 strains of A.auricular were clustered into two groups. Althrough these results did not show correlation with geographic origins of the specimens, it was suggested that A.auricular distributed in Heilongjiang Province include at least two genetically different populations.