Molecular relationships within the genus Amylostereum as determined by internal transcribed spacer sequences of the ribosomal DNA

Intraspecific and interspecific variation in ITS sequences of ribosomal DNA was studied among different genets (clonal lines) of Amylostereum areolatum, A. chailletii and A. /aevigatum.No intraspecific variation was found within A. chailletii and A. laevigatum isolates.The sequences of A. areolatum isolates from Denmark and Sweden were also identical, but differed from Lithuanian strain by a single base.High sequence homology (> 97 %) was revealed among the three species from the genus Amylostereum.Results of the study indicated a closer relationship between 4A.chailletii and A. laevigatum, than between the latter two species and A. areolatum.