The
homology of the secY gene sequences indicates that HP is
most closely related to strain RhY among ‘Ca. P. asteris’.
Similar trends were observed for the groEL and amp
gene sequences. The groEL gene of HP had 100 %
nucleotide sequence identity with strain RhY and SWB. On
the contrary, HP had 99.7 % identity with PrG, 99.6 %
identity with OY-M, and 82.3 % identity with JHP.