Fig. 2.

Phylogenetic trees based on alignment of meq genes from Kgs-c1 and MDV strains. The tree was generated using the minimum evolutionary algorithm with a bootstrap analysis of 1000 replicates. The meq genes used in this analysis were mainly classified into three clusters, North America, other regions including Eurasian countries, and L-meq. Numbers indicate bootstrap percentages (1000 replicates). Arrow heads indicate MDV strains used for the phylogenetic analysis described in Fig. 1. The scale indicates divergence time