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Parasitol Int ; 95: 102751, 2023 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-37031813

RESUMO

There is limited information about the species of rumen fluke (Family Paramphistomidae) in the Caribbean. However, knowledge of species distribution is needed to better understand disease risk and epidemiology. Morphological identification is challenging with more recent DNA sequencing enabling a better understanding of rumen fluke distribution. In this study, rumen fluke specimens, collected between 2015 and 2016 from cattle on the island of St. Kitts, West Indies, were analysed. The ribosomal internal transcribed spacer 2 (ITS-2) region of rDNA was amplified using generic trematode primers. Results from Sanger sequencing were compared to reference sequences in GenBank and indicated the species was Cotylophoron cotylophorum with 100% sequence identity and 91% query cover. The ITS2 sequences were then compared to previously published ITS2 sequences for the Cotylophoron genus. When all the St. Kitts C. cotylophorum ITS2 sequences were compared with all other Cotylophoron sequences from India, Kenya, and Zimbabwe, three variable nucleotide sites, resulting in five unique haplotypes, were identified. Nine ITS2 sequences shared haplotype 1, which included all those from St. Kitts and single representatives from India and Kenya, potentially indicating global movement of this species.


Assuntos
Paramphistomatidae , Trematódeos , Bovinos , Animais , Filogenia , Paramphistomatidae/genética , Trematódeos/genética , DNA Ribossômico , Índias Ocidentais
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