Phylogeny and sequence variability of the Sarcocystis singaporensis Zaman and Colley, (1975) 1976 ssrDNA
Language English Country Germany Media print-electronic
Document type Journal Article, Research Support, Non-U.S. Gov't, Research Support, U.S. Gov't, P.H.S.
- MeSH
- Biological Evolution MeSH
- Species Specificity MeSH
- Phylogeny * MeSH
- Genetic Variation * MeSH
- Snakes parasitology MeSH
- Rodentia parasitology MeSH
- Host-Parasite Interactions MeSH
- DNA, Single-Stranded analysis MeSH
- Molecular Sequence Data MeSH
- DNA, Ribosomal genetics MeSH
- RNA, Protozoan analysis MeSH
- Sarcocystis genetics MeSH
- Sequence Analysis, DNA MeSH
- Animals MeSH
- Check Tag
- Animals MeSH
- Publication type
- Journal Article MeSH
- Research Support, Non-U.S. Gov't MeSH
- Research Support, U.S. Gov't, P.H.S. MeSH
- Names of Substances
- DNA, Single-Stranded MeSH
- DNA, Ribosomal MeSH
- RNA, Protozoan MeSH
The coccidium Sarcocystis singaporensis (Apicomplexa: Sarcocystidae) is a cyst-forming parasite with potential as a biological agent for the control of wild populations of rodents in non-native environments. Phylogenetic analysis based on the ssrDNA supports S. singaporensisisolates as a sister species to sarcosporidians transmitted between snakes and rodents but an association with the carnivore-ruminant Sarcocystis spp. could not be rejected by likelihood ratio tests. Four complete and six partial ssrDNA sequences representing this species are monophyletic in any tree reconstruction method; however, they possess very high pairwise distances of up to 0.053. The obtained sequences suggest the probable existence of at least two divergent paralogous ssrDNAs. Moreover, our results support the co-evolution of lsrDNA and ssrDNA in S. singaporensis. The utility of coccidian lsrDNA and ssrDNA for evolutionary studies and their abundance in the primary nucleotide databases is discussed.
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GENBANK
AF434050, AF434051, AF434052, AF434053, AF434054, AF434055, AF434056, AF434057, AF434058, AF434059
