FIG. 4.

Trees obtained by the unweighted-pair group method using average linkages and based on ITS sequences including the 5.8S rRNA gene subunit from 65 strains obtained by soil dilution plating (A) or baiting (B) compared to ex-type or representative strains (species name followed by culture collection number) which show the species detected on the oligonucleotide array. Reference Pythium species not clustering with any other isolates were not detected or isolated by traditional methods. Taxa (in bold) not clustering with a reference Pythium species were not detected on the oligonucleotide array. Sequences of taxa with asterisks were obtained by subcloning the PCR amplicons.