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  • Detection of Raillietina sa...
    Al‐Quraishy, S.; Abdel‐Gaber, R.; Dkhil, M.A.; Abdel‐Baki, A.S.; Alotaibi, M.; Alhafidh, W.; Al‐Houshany, N.

    Letters in applied microbiology, January 2021, 2021-Jan, 2021-01-00, 20210101, Letnik: 72, Številka: 1
    Journal Article

    Raillietina saudiae is a well‐studied avian gastrointestinal parasite belonging to the family Davaineidae and is the most prevalent cyclophyllid tapeworm infecting pigeon in Saudi Arabia. The present study considered as a complementary analysis of Al‐Quraishy et al. (2019; Parasitol Int 71, 59–72) with molecular studies for two ribosomal DNA genes employed for precise recognition of this Raillietina species. The annotated partial 18S and 28S rDNA gene regions were found to be 888 and 900 bp long that utilized further to elucidate their genetic relationships at species level using maximum likelihood method. The query sequence of R. saudiae is well aligned and placed within the Davaineidae family, with the same clade of all species of Raillietina that well separated from other cyclophyllidean cestodes especially taeniid and hymenolepid species. Sequence data recorded the monophyly of Raillietina species. The current phylogeny supports the usage of the partial 18S and 28S rDNA genes as reliable markers for phylogenetic reconstructions. Significance and impact of the study: The nuclear ribosomal DNA genes (18S and 28S rDNA) are regarded as useful genetic markers in taxonomic anaylsis of Raillietina saudiae and distinguish it from the other related species.