Schistosoma kisumuensis n. sp. (Digenea: Schistosomatidae) from murid rodents in the Lake Victoria Basin, Kenya and its phylogenetic position within the S. haematobium species group.
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Date
2009Author
Hanelt, B
Brant, SV
Steinauer, ML
Maina, GM
Kinuthia, JM
Agola, LE
Mwangi, IN
Mungai, BN
Mutuku, MW
Mkoji, GM
Loker, ES
Type
ArticleLanguage
enMetadata
Show full item recordAbstract
Schistosoma kisumuensis n. sp. is described based on 6 adult males and 2 adult females collected from the circulatory system of 3 murid rodent species, Pelomys isseli, Mastomys natalensis, and Dasymys incomtus. Specimens were collected from a single location, Nyabera Swamp, in Kisumu, Kenya in the Lake Victoria Basin. This new species is morphologically similar to members of the S. haematobium group, currently represented by 8 species parasitizing artiodactyls and primates, including humans. Schistosoma kisumuensis differs from these species by producing relatively small Schistosoma intercalatum-like eggs (135.2 x 52.9 microm) with a relatively small length to width ratio (2.55). Comparison of approximately 3000-base-pair sequences of nuclear rDNA (partial 28S) and mtDNA (partial cox1, nad6, 12S) strongly supports the status of S. kisumuensis as a new species and as a sister species of S. intercalatum. The cox1 genetic distance between these two species (6.3%) is comparable to other pairwise comparisons within the S. haematobium group. Separation of the Congo River and Lake Victoria drainage basins is discussed as a possible factor favoring the origin of this species.
URI
http://www.ncbi.nlm.nih.gov/pubmed/19573258http://erepository.uonbi.ac.ke:8080/xmlui/handle/123456789/57707
Citation
Parasitology. 2009 Aug;136(9):987-1001. doi: 10.1017/S003118200900643X. Epub 2009 Jul 2.Publisher
University of Nairobi School of Medicine
Collections
- Faculty of Health Sciences (FHS) [10378]