Figure 1.
Intron divergences between and within Theileria and Plasmodium species. Percentages of total intron positions in conserved regions that are species specific are given for the three apicomplexan comparisons. Times of divergence are from Escalante and Ayala (1995) (Theileria- Plasmodium divergence), from an assumption of P. yoelii–P. falciparum speciation at least as deep as host divergence, and based on an estimated d S = 0.82 divergence between Theileria species, assuming a nucleotide substitution rate of 5 × 10-9 (T. annulata–T. parva divergence).
