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Phylogenetics and genetic variation of Heligmosomoides thomomyos in Western pocket gophers (Thomomys spp.)

The host specificities and systematics of North American Heligmosomoides species remain particularly uncertain. The primary aim of this study was to verify that a species described previously based only on morphology, H. thomomyos, from pocket gopher (Rodentia: Geomyidae) hosts in Oregon represented...

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Autores principales: Hughes, Malorri R., Gibson, Alexandra A., Wolfe, Emily R., Bronson, Cecily D., Duffield, Deborah A.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Exeley Inc. 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8762979/
https://www.ncbi.nlm.nih.gov/pubmed/35156052
http://dx.doi.org/10.21307/jofnem-2021-110
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author Hughes, Malorri R.
Gibson, Alexandra A.
Wolfe, Emily R.
Bronson, Cecily D.
Duffield, Deborah A.
author_facet Hughes, Malorri R.
Gibson, Alexandra A.
Wolfe, Emily R.
Bronson, Cecily D.
Duffield, Deborah A.
author_sort Hughes, Malorri R.
collection PubMed
description The host specificities and systematics of North American Heligmosomoides species remain particularly uncertain. The primary aim of this study was to verify that a species described previously based only on morphology, H. thomomyos, from pocket gopher (Rodentia: Geomyidae) hosts in Oregon represented a monophyletic lineage. In order to address this aspect, as well as to further understand relationships and geographic patterns, we carried out phylogenetic, genetic diversity, and population dynamic analyses using partial 18S rRNA and COI mtDNA sequences of Heligmosomoides specimens. Phylogenetic analyses suggested that there are likely multiple Heligmosomoides species present in these hosts. This was supported by the high degree of divergence and differentiation found among populations, significant population structure between locations, and a modest positive association between geographic and genetic distances. This study serves as the first molecular characterization and first phylogenetic report of H. thomomyos, and documents two new host records for this parasite. The relationship of H. thomomyos among pocket gopher hosts and to other Heligmosomoides species, however, warrants continued study.
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spelling pubmed-87629792022-02-10 Phylogenetics and genetic variation of Heligmosomoides thomomyos in Western pocket gophers (Thomomys spp.) Hughes, Malorri R. Gibson, Alexandra A. Wolfe, Emily R. Bronson, Cecily D. Duffield, Deborah A. J Nematol Life Sciences The host specificities and systematics of North American Heligmosomoides species remain particularly uncertain. The primary aim of this study was to verify that a species described previously based only on morphology, H. thomomyos, from pocket gopher (Rodentia: Geomyidae) hosts in Oregon represented a monophyletic lineage. In order to address this aspect, as well as to further understand relationships and geographic patterns, we carried out phylogenetic, genetic diversity, and population dynamic analyses using partial 18S rRNA and COI mtDNA sequences of Heligmosomoides specimens. Phylogenetic analyses suggested that there are likely multiple Heligmosomoides species present in these hosts. This was supported by the high degree of divergence and differentiation found among populations, significant population structure between locations, and a modest positive association between geographic and genetic distances. This study serves as the first molecular characterization and first phylogenetic report of H. thomomyos, and documents two new host records for this parasite. The relationship of H. thomomyos among pocket gopher hosts and to other Heligmosomoides species, however, warrants continued study. Exeley Inc. 2022-01-13 /pmc/articles/PMC8762979/ /pubmed/35156052 http://dx.doi.org/10.21307/jofnem-2021-110 Text en © 2021 Authors https://creativecommons.org/licenses/by/4.0/This is an Open Access article licensed under the Creative Commons CC BY 4.0 license, https://creativecommons.org/licenses/by/4.0/
spellingShingle Life Sciences
Hughes, Malorri R.
Gibson, Alexandra A.
Wolfe, Emily R.
Bronson, Cecily D.
Duffield, Deborah A.
Phylogenetics and genetic variation of Heligmosomoides thomomyos in Western pocket gophers (Thomomys spp.)
title Phylogenetics and genetic variation of Heligmosomoides thomomyos in Western pocket gophers (Thomomys spp.)
title_full Phylogenetics and genetic variation of Heligmosomoides thomomyos in Western pocket gophers (Thomomys spp.)
title_fullStr Phylogenetics and genetic variation of Heligmosomoides thomomyos in Western pocket gophers (Thomomys spp.)
title_full_unstemmed Phylogenetics and genetic variation of Heligmosomoides thomomyos in Western pocket gophers (Thomomys spp.)
title_short Phylogenetics and genetic variation of Heligmosomoides thomomyos in Western pocket gophers (Thomomys spp.)
title_sort phylogenetics and genetic variation of heligmosomoides thomomyos in western pocket gophers (thomomys spp.)
topic Life Sciences
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8762979/
https://www.ncbi.nlm.nih.gov/pubmed/35156052
http://dx.doi.org/10.21307/jofnem-2021-110
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