Molecular characterization and genetic diversity of and of cattle in Thailand.

and are the most common tick-borne parasites that cause bovine babesiosis which effects livestock production, leading to economic losses in tropical and subtropical areas of the world. The aims of this study were to determine the molecular detection, genetic diversity and antigenicity prediction of based on spherical body protein 2 () gene and based on rhoptry-associated protein 1a () gene in cattle in Thailand. By PCR assay, the molecular detection of and infection revealed levels of 2.58% (4/155) and 5.80% (9/155), respectively. The phylograms showed that and sequences displayed 5 and 3 clades with similarity ranging between 85.53 to 100% and 98.28 to 100%, respectively, when compared within Thailand strain. Diversity analysis of and sequences showed 18 and 4 haplotypes, respectively. The entropy analysis illustrated 104 and 7 polymorphic sites of and nucleic acid sequences, respectively, while those of and amino acid sequences showed 46 and 4 high entropy peaks, respectively. Motifs analysis exhibited the distribution and conservation among and sequences. The continuous and discontinuous B-cell epitopes have also been evaluated in this work. Therefore, our findings may be used to ameliorate the understanding inputs of molecular phylogeny, genetic diversity and antigenicity of and Thailand stains.