Fig. 2

Phylogenetic tree based on Anaplasma ovis msp4 partial sequences [347Â base pairs (bp)] obtained in this study. The tree was constructed with the neighbor-joining method using MEGA7.0. Numbers at nodes represent percentage occurrence of clades in 500 bootstrap replications of data. Sequences from this study are in bold. Anaplasma marginale (AY010250) and Anaplasma marginale (KU497715) were used as outgroups. The black circles indicate the sequences from Tibetan sheep in this study