Morphological and molecular characterization of <i>Quinqueserialis</i> (Digenea: Notocotylidae) species diversity in North America

Gagnon, Demi K.; Kasl, Emily A.; Preisser, Whitney C.; Belden, Lisa K.; Detwiler, Jillian T.

doi:10.1017/s0031182021000792

Cited by 5 publications

(4 citation statements)

References 27 publications

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“…This combination is useful for species determination whose morphological characters may not reveal enough variation, e.g. cryptic species or lack of sufficient material (Gagnon et al ., 2021).…”

Section: Discussionmentioning

confidence: 99%

“…using all available data such as morphological and molecular data, host use and geographic distribution) for detecting and delimiting genera and species, and placing them within a phylogenetic context (e.g. Brower, 2010; Cremonte et al ., 2015; Blasco-Costa et al ., 2016; Renner, 2016, Bray et al ., 2021; Gagnon et al ., 2021; Gonchar and Galaktionov, 2021). Such efforts have increased the identification of trematode species, or at least distinct lineages, when several of them could not be differentiated morphologically (e.g.…”

Section: Introductionmentioning

confidence: 99%

“…Several authors argue that the focus for identification should be on diverse diagnosable features, which include genetic characters, that are informative in phylogenies for capturing species diversity and aid in erecting new families and genera (Brant et al ., 2006; Brower, 2010; Stentiford et al ., 2013; Félix et al ., 2014; Blasco-Costa et al ., 2016; Renner, 2016; Gagnon et al ., 2021). Genetic characterizations have been shown to be a reasonable proxy for formulating a hypothesis of what might constitute a species.…”

Section: Introductionmentioning

confidence: 99%

“…This can indicate they are not congeners, at least for this family known for its specificity for gastropod host species. In the last decade, taxonomists have suggested that delimiting species using solely morphology may be imprecise (Gagnon et al, 2021), and increasingly encouraged an integrative paradigm (i.e. using all available data such as morphological and molecular data, host use and geographic distribution) for detecting and delimiting genera and species, and placing them within a phylogenetic context (e.g.…”

Section: Introductionmentioning

confidence: 99%

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Two new genera and species of avian schistosomes from Argentina with proposed recommendations and discussion of the polyphyletic genus Gigantobilharzia (Trematoda, Schistosomatidae)

Lorenti¹,

Brant

Gilardoni

et al. 2022

Parasitology

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Gigantobilharzia Odhner, 1910 (Schistosomatidae) includes species that parasitize several orders of birds and families of gastropods from both freshwater and marine environments worldwide. Due to their delicate bodies, most of the species descriptions are incomplete, and lumped in the genus Gigantobilharzia, in some cases despite major morphological variability. Only three of those species have molecular sequence data but then lack a robust morphological description, making species differentiation very difficult. For this reason, several authors consider that many of the species of Gigantobilharzia should be reassigned to new genera. The aim of this paper is to describe two new genera and two new species of schistosomes using morphological and molecular characterization. We described Marinabilharzia patagonense n. g., n. sp. parasitizing Larus dominicanus from north Patagonian coast, and Riverabilharzia ensenadense n. g., n. sp. parasitizing L. dominicanus, Chroicocephalus maculipennis and Chroicocephalus cirrocephalus from freshwater Río de La Plata, in South America, Argentina. We then analysed and discussed the combinations of characters defining species of Gigantobilharzia and, based on that and on the available molecular data, we propose at least four possible new genera.

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Section: Discussionmentioning

confidence: 99%