Neither Diplectanum nor specific: a dramatic twist to the taxonomic framework of Diplectanum (Monogenea: Diplectanidae)

Villar-Torres, Mar; Repullés-Albelda, Aigües; Montero, Francisco E.; Raga, Juan Antonio; Blasco‐Costa, Isabel

doi:10.1016/j.ijpara.2018.11.003

Cited by 14 publications

(10 citation statements)

References 55 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Instead, rapid changes in shape and size may render morphological characters systematically uninformative beyond the level of closely related species as suggested for some dactylogyrid taxa before, e.g., Cichlidogyrus (Pouyaud et al, 2006;Cruz-Laufer et al, 2021b) or Thaparocleidus (Wu et al, 2008). Similar patterns have been found for representatives of Diplectanidae (Poisot et al, 2011;Villar-Torres et al, 2019), a sister family to Dactylogyridae. Conversely, morphological similarities in more distantly related lineages may have led to the erection of several 'waste bucket' genera including Ancyrocephalus (Bychowsky and Nagibina, 1970), Haliotrema (Klassen, 1994), potentially Thaparocleidus, which is rendered paraphyletic by specimens belonging to Pseudancylodiscoides (Wu et al, 2008; this study) and Cornudiscoides (Fig.…”

Section: Systematics: Problematic Points (Paraphyletic and Polyphylet...supporting

confidence: 57%

Dactylogyridae 2022: a meta-analysis of phylogenetic studies and generic diagnoses of parasitic flatworms using published genetic and morphological data

Kmentová

Cruz-Laufer

Pariselle

et al. 2022

International Journal for Parasitology

View full text Add to dashboard Cite

Section: Systematics: Problematic Points (Paraphyletic and Polyphylet...supporting

confidence: 57%

Dactylogyridae 2022: a meta-analysis of phylogenetic studies and generic diagnoses of parasitic flatworms using published genetic and morphological data

Kmentová

Cruz-Laufer

Pariselle

et al. 2022

International Journal for Parasitology

View full text Add to dashboard Cite

“…in Cichlidogyrus (Pouyaud et al, 2006;Cruz-Laufer et al, 2021b) or Thaparocleidus (Wu et al, 2008). Similar patterns have been found for representatives of Diplectanidae (Poisot et al, 2011;Villar-Torres et al, 2019), a sister family to Dactylogyridae. Conversely, morphological similarities in more distantly related lineages may have led to the presence of several 'waste bucket' genera including Ancyrocephalus (Bychowsky and Nagibina, 1970),…”

Section: Environment and Biogeography: Molecular And Morphological Evolution Occur At Different Ratessupporting

confidence: 77%

Dactylogyridae 2022: a meta-analysis of phylogenetic studies and generic diagnoses of parasitic flatworms using published genetic and morphological data

Kmentová¹,

Cruz-Laufer²,

Pariselle³

et al. 2021

Preprint

View full text Add to dashboard Cite

Dactylogyridae is one of the most studied families of parasitic flatworms with more than 1000 species and 166 genera described to date including ecto-, meso-, and endoparasites. Dactylogyrid monogeneans have been used as model organisms for host-parasite macroevolutionary and biogeographical studies due to the scientific and economic importance of some of their host lineages. Consequently, an array of phylogenetic research into different dactylogyrid lineages has been produced over the past years but the last family-wide study was published over a decade ago. Here, we provide a new phylogeny of Dactylogyridae including representatives of all the genera with available molecular data. First, we discuss morphological, host range, biogeographical, and freshwater-marine patterns. Second, we provide an overview of the current state of the systematics of the family, and its subfamilies and genera. Third, we elaborate on the implications of taxonomic, citation, and confirmation bias in past studies. We found two well-supported main lineages which we assigned to the subfamilies Dactylogyrinae and Ancyrocephalinae. The subfamilies further include 11 well-supported clades whose members share only few diagnostic morphological features. Our study highlights the discrepancy between morphological similarities and molecular phylogenetic relationships in some dactylogyrid lineages. Environmental changes might have induced morphological adaptation, e.g. changes in the attachment organ in response to marine-freshwater habitat switches or reduction of eyespots related to water turbidity. Moreover, synonymisation of some of the para- or polyphyletic genera is proposed. We conclude that a strong taxonomic bias further limits knowledge on biogeographical evolutionary patterns that can be inferred from these results. Finally, we propose addressing potential citation and confirmation biases through a ‘level playing field’ multiple sequence alignment as provided by this study.

show abstract

“…(Diplectanidae) (Desdevises et al, 2000; Poisot et al, 2011). Following Desdevises et al (2000), these inconsistencies could be attributed to phenotypic variability of some characters related to the environment and the host (Villar-Torres et al 2019). Moreover, the observed phenotypic variability and the genetic structuring of the morphotypes observed in the COI marker could be an indication for ongoing sympatric speciation or diversification processes (Poulin, 2002) of D. lacustre in Lake Albert.…”

Section: Discussionmentioning

confidence: 99%

Intraspecific diversification and mitonuclear discordance in native versus introduced areas: co-introduction ofDolicirroplectanum lacustre, a monogenean gill parasite of the invasive Nile perchLates niloticus

Thys

Vanhove

Custers

et al. 2022

Preprint

View full text Add to dashboard Cite

The Nile perch (Lates niloticus) is a notorious invasive species. The introductions of Nile perch into several lakes and rivers in the Lake Victoria region led to the impoverishment of the trophic food webs, particularly well documented in Lake Victoria. Along with the introductions of the Nile perch, its parasites were co-introduced. Dolicirroplectanum lacustre (Monogenea, Diplectanidae) is a gill parasite of latid fishes (Lates spp.) inhabiting several major African freshwater systems. We examined the intra-specific diversification of D. lacustre from L. niloticus in Lake Albert (native range) and Lake Victoria (introduced range) by assessing morphological and genetic differentiation, and microhabitat preference. We expected reduced morphological and genetic diversity for D. lacustre in Lake Victoria compared to Lake Albert, as a result of the historical introductions. Dolicirroplectanum lacustre displays high morphological variability within and between African freshwaters. Mitonuclear discordance within the morphotypes of D. lacustre indicates an incomplete reproductive barrier between the morphotypes. The diversification in the mitochondrial gene portion is directly linked with the morphotypes, while the nuclear gene portions indicate conspecificity. Based on our results, we reported reduced genetic and morphological diversity, potentially being a result of a founder effect in Lake Victoria.

show abstract

Neither Diplectanum nor specific: a dramatic twist to the taxonomic framework of Diplectanum (Monogenea: Diplectanidae)

Cited by 14 publications

References 55 publications

Dactylogyridae 2022: a meta-analysis of phylogenetic studies and generic diagnoses of parasitic flatworms using published genetic and morphological data

Dactylogyridae 2022: a meta-analysis of phylogenetic studies and generic diagnoses of parasitic flatworms using published genetic and morphological data

Dactylogyridae 2022: a meta-analysis of phylogenetic studies and generic diagnoses of parasitic flatworms using published genetic and morphological data

Intraspecific diversification and mitonuclear discordance in native versus introduced areas: co-introduction ofDolicirroplectanum lacustre, a monogenean gill parasite of the invasive Nile perchLates niloticus

Contact Info

Product

Resources

About