The complete mitochondrial genomes of five Eimeria species infecting domestic rabbits
2015
Liu, Guo-Hua | Tian, Si-Qin | Cui, Ping | Fang, Su-Fang | Wang, Chun-Ren | Zhu, Xing-Quan
Rabbit coccidiosis caused by members of the genus Eimeria can cause enormous economic impact worldwide, but the genetics, epidemiology and biology of these parasites remain poorly understood. In the present study, we sequenced and annotated the complete mitochondrial (mt) genomes of five Eimeria species that commonly infect the domestic rabbits. The complete mt genomes of Eimeria intestinalis, Eimeria flavescens, Eimeria media, Eimeria vejdovskyi and Eimeria irresidua were 6261bp, 6258bp, 6168bp, 6254bp, 6259bp in length, respectively. All of the mt genomes consist of 3 genes for proteins (cytb, cox1, and cox3), 14 gene fragments for the large subunit (LSU) rRNA and 11 gene fragments for the small subunit (SSU) rRNA, but no transfer RNA (tRNA) genes. The gene order of the mt genomes is similar to that of Plasmodium, but distinct from Haemosporida and Theileria. Phylogenetic analyses based on full nucleotide sequences using Bayesian analysis revealed that the monophyly of the Eimeria of rabbits was strongly statistically supported with a Bayesian posterior probabilities. These data provide novel mtDNA markers for studying the population genetics and molecular epidemiology of the Eimeria species, and should have implications for the molecular diagnosis, prevention and control of coccidiosis in rabbits.
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