The systematics of benign and moderately pathogenic Theileria isolates from cattle and deer
originating from different geographic regions was undertaken by small-subunit ribosomal
RNA (SSU rRNA) gene nucleotide-sequence analysis. A maximum-likelihood phylogenetic
tree constructed from these sequences resulted in two major divisions, each with a common
ancestor. One major division branches into four relatively divergent groups, including (1)
bovine Theileria sp. Type D (USA and Korea),(2) T. mutans Intona and Theileria sp. MSD …

The molecular taxonomy of 9 benign and moderately pathogenic Theileria isolates from
cattle and deer originating from different geographical regions was studied by small-subunit
ribosomal RNA (SSU rRNA) gene nucleotide sequence analysis. A maximum-likelihood
phylogenetic tree constructed from these sequences resulted in 2 major divisions, each with
a common ancestor. One major division branched into 4 relatively divergent groups: bovine
Theileria sp. type D (USA and Korea); T. mutans Intona (Kenya) and Theileria sp. MSD …