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Parasitology ; 145(3): 269-280, 2018 03.
Artigo em Inglês | MEDLINE | ID: mdl-28831960

RESUMO

Syphacia stroma (von Linstow, 1884) Morgan, 1932 and Syphacia frederici Roman, 1945 are oxyurid nematodes that parasitize two murid rodents, Apodemus sylvaticus and Apodemus flavicollis, on the European mainland. Only S. stroma has been recorded previously in Apodemus spp. from the British Isles. Despite the paucity of earlier reports, we identified S. frederici in four disparate British sites, two in Nottinghamshire, one each in Berkshire and Anglesey, Wales. Identification was based on their site in the host (caecum and not small intestine), on key morphological criteria that differentiate this species from S. stroma (in particular the tail of female worms) and by sequencing two genetic loci (cytochrome C oxidase 1 gene and a section of ribosomal DNA). Sequences derived from both genetic loci of putative British S. frederici isolates formed a tight clade with sequences from continental worms known to be S. frederici, clearly distinguishing these isolates from S. stroma which formed a tight clade of its own, distinct from clades representative of Syphacia obvelata from Mus and S. muris from Rattus. The data in this paper therefore constitute the first record of S. frederici from British wood mice, and confirm the status of this species as distinct from both S. obvelata and S. stroma.


Assuntos
Camundongos/parasitologia , Oxyuroidea/genética , Ratos/parasitologia , Doenças dos Roedores/epidemiologia , Animais , DNA Ribossômico , Feminino , Interações Hospedeiro-Parasita , Oxyuroidea/isolamento & purificação , Filogenia , Doenças dos Roedores/parasitologia , Reino Unido/epidemiologia , País de Gales/epidemiologia
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