Submitted to: American Association of Veterinary Parasitologists Proceedings
Publication Type: Abstract Only
Publication Acceptance Date: July 11, 1994
Publication Date: N/A
The random amplified polymorphic DNA assay was used to compare four isolates of Sarcocystis neurona and eight species of coccidia from the genera Sarcocystis, Toxoplasma, or Eimeria. A single, common 550 bp DNA fragment was amplified from the DNA of each S. neurona isolate using a 16-nucleotide primer. Cross hybridization analyses among S. neurona isolates showed that DNA fragments had at least partial sequence homology. The primer generated several DNA fragments, including a 550 bp DNA fragment, from the related coccidia. DNA hybridization analyses indicated no sequence homology between these fragments and the 550 bp DNA fragment generated from S. neurona. The S. neurona 550 bp DNA fragment also did not hybridize with genomic blots of various related coccidia. These results suggest that the S. neurona DNA fragment may be useful as a species-specific probe.