ArticleActa parasitologica2026
Phylogenetic Placement of Whittingtonocotyle Neto, Rodrigues & Domingues, 2015 (Monopisthocotyla: Dactylogyridae) Inferred from the First Molecular Data of Both Described Species.
Article in Acta parasitologica, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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1 citing paper in PubMed.
- Diversity of Monopisthocotyla from the gills of Hoplerythrinus unitaeniatus (Spix & Agassiz) (Characiformes: Erythrinidae) in the Peruvian Amazon, including the description of a new species of Anacanthorus Mizelle & Price, 1965 (Dactylogyridea: Ancyrocephalidae).Systematic parasitology · 2026Article
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Abstract
purposeThis study provides the first molecular assessment of the two species of the genus Whittingtonocotyle, parasites of the erythrinid fish Hoplerythrinus unitaeniatus. The main objective was to evaluate the phylogenetic cohesion of Whittingtonocotyle and to explore its preliminary phylogenetic affinities within Dactylogyridae based on available molecular and morphological evidence.
methodsMorphological examinations were performed in parallel with analyses of partial LSU rDNA and COI mtDNA sequences. Phylogenetic reconstructions were conducted independently for each marker to assess the monophyly of Whittingtonocotyle and to evaluate its relationships with other dactylogyrid taxa included in the available comparative dataset.
resultsBoth molecular datasets consistently recovered Whittingtonocotyle as a strongly supported monophyletic lineage. In the phylogenetic reconstructions, Whittingtonocotyle was recovered in proximity to Urocleidoides species parasitizing erythrinid fishes, although deeper backbone relationships showed limited statistical support.
conclusionMorphological data support the recognition of Whittingtonocotyle as a distinct genus, whereas molecular analyses indicate a close phylogenetic proximity to erythrinid-associated Urocleidoides. This partial incongruence, together with the limited resolution of deeper relationships, highlights the need for expanded taxon sampling and multilocus datasets to fully resolve the evolutionary placement of Whittingtonocotyle within Dactylogyridae.
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