The evolutionary relationship inferred using Neighbor-Joining method using data from 5′ end of 18S. The evolutionary history of a total of 15 sequences was inferred using the Neighbor-Joining method. Next to branches are the percentages of bootstrap replicate trees (500 replicates) in which the samples clustered together are shown next to the branches. The evolutionary distances were computed using Jukes-Cantor and the rate variation among sites was modeled with a gamma distribution. (= 1). The analysis included 15 nucleotide sequences. All positions containing gaps and missing data were eliminated. There were a total of 498 positions in the final dataset. Nucleotides used in the calculation corresponded to the nucleotide positions from 481 to 979, relative to B. divergens sequence (FJ944825).