Genetic diversity within Strongyloides fuelleborni: mitochondrial genome analysis reveals a clear African and Asian division

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Titel: Genetic diversity within Strongyloides fuelleborni: mitochondrial genome analysis reveals a clear African and Asian division
Autoren: Travis Richins, Sarah G. H. Sapp, Alexandra Juhasz, Lucas J. Cunningham, E. James La Course, J. Russell Stothard, Joel L. N. Barratt
Quelle: Parasitology, Pp 1-10
Verlagsinformationen: Cambridge University Press (CUP), 2025.
Publikationsjahr: 2025
Schlagwörter: Asia, Africa, Strongyloides fuelleborni, paraphyly, population structure, QD415-436, Infectious and parasitic diseases, RC109-216, strongyloidiasis, Biochemistry, Microbiology, QR1-502
Beschreibung: Following the recent report of strongyloidiasis caused by Strongyloides fuelleborni within a semi-captive colony of baboons in a UK safari park, we investigated the genetic relationships of this isolate with other Strongyloides isolates across the world. Whole-genome sequencing data were generated with later phylogenetic analysis of mitochondrial (mt) cytochrome oxidase subunit 1 (cox1) and nuclear ribosomal 18S sequences against 300 published Strongyloides reference genotypes. The putative African origin of the UK S. fuelleborni was confirmed and full-length mt genome sequences were assembled to facilitate a more detailed phylogenetic analysis of 14 mt coding regions against all available Strongyloides species. Our analyses demonstrated that the UK isolate represented a novel African lineage not previously described. Additional complete mt genomes were assembled for several individual UK safari park worms to reveal a slightly altered mt genome gene arrangement, allowing clear separation from Asian S. fuelleborni. Furthermore, these UK worms possessed expanded intergenic regions of unknown function that increase their mt genome size to approximately 24 kilobases (kb) as compared with some 16 kb for Asian S. fuelleborni; this may have arisen from unique populational founder and genetic drift effects set within the peculiar mixed species baboon and drill ancestry of this semi-captive primate colony. A maximum likelihood phylogeny constructed from 14 mt coding regions also supported an evolutionary distinction between Asian and African S. fuelleborni.
Publikationsart: Article
Sprache: English
ISSN: 1469-8161
0031-1820
DOI: 10.1017/s0031182025100243
Zugangs-URL: https://doaj.org/article/c97ac8140a244341a300dfbd62bb2256
Rights: CC BY
Dokumentencode: edsair.doi.dedup.....6f10223c89f0df2ce5f33e647ca73ef5
Datenbank: OpenAIRE
Beschreibung
Abstract:Following the recent report of strongyloidiasis caused by Strongyloides fuelleborni within a semi-captive colony of baboons in a UK safari park, we investigated the genetic relationships of this isolate with other Strongyloides isolates across the world. Whole-genome sequencing data were generated with later phylogenetic analysis of mitochondrial (mt) cytochrome oxidase subunit 1 (cox1) and nuclear ribosomal 18S sequences against 300 published Strongyloides reference genotypes. The putative African origin of the UK S. fuelleborni was confirmed and full-length mt genome sequences were assembled to facilitate a more detailed phylogenetic analysis of 14 mt coding regions against all available Strongyloides species. Our analyses demonstrated that the UK isolate represented a novel African lineage not previously described. Additional complete mt genomes were assembled for several individual UK safari park worms to reveal a slightly altered mt genome gene arrangement, allowing clear separation from Asian S. fuelleborni. Furthermore, these UK worms possessed expanded intergenic regions of unknown function that increase their mt genome size to approximately 24 kilobases (kb) as compared with some 16 kb for Asian S. fuelleborni; this may have arisen from unique populational founder and genetic drift effects set within the peculiar mixed species baboon and drill ancestry of this semi-captive primate colony. A maximum likelihood phylogeny constructed from 14 mt coding regions also supported an evolutionary distinction between Asian and African S. fuelleborni.
ISSN:14698161
00311820
DOI:10.1017/s0031182025100243