Figure 2
Phylogenetic relationships based on the aligned sequences (205–209 bp) of 5S ( rrf )-23S ( rrl ) rRNA gene were used to compare the genetic variation between 14 Borrelia spirochetes detected in I. granulatus ticks from Kinmen Island of Taiwan and 19 other strains of Borrelia spirochetes. The tree was constructed and analyzed by the neighbour-joining method using 1000 bootstrap replicates. Numbers at the nodes indicate the percentages of reliability of each branch of the tree. Branch lengths are drawn proportional to the estimated sequence divergence.