Redescription ofAcanthogyrus(Acanthosentis)maroccanus(Dollfus, 1951) (Acanthocephala: Quadrigyridae), a parasite of the Algerian barbLuciobarbus callensis(Valenciennes) (Cyprinidae) in Algeria, and first molecular data

Menasria, Amel; Barčák, Daniel; Kaouachi, Nouha; Mourad, Bensouilah; Scholz, Tomáš; Hernández‐Orts, Jesús S.

doi:10.1017/s0022149x19000737

Cited by 4 publications

(4 citation statements)

References 38 publications

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“…Menasria et al presented that A. maroccanus forms a poorly supported clade within the Eoacanthocephala based on 28S rDNA gene phylogenetic analysis [10]. In present study, no intraspecifc genetic divergence was found among the different isolates of A. kashmirensis regarding 18S and ITS1-5.8S-ITS2 rDNA sequences.…”

Section: Discussioncontrasting

confidence: 49%

The molecular profile of Acanthogyrus (Acanthosentis) kashmirensis from the Indian subcontinent

Sharifdini

Amin²,

Heckmann

2021

Acta Parasit.

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Purpose The purpose of the present study was to provide molecular support for the validity of the morphological description of Acanthosentis kashmirensis Amin, Heckmann, Zargar, 2017 which was originally poorly described as Neoechinorhynchus kashmirensis Fotedar and Dar, 1977 from the Indian subcontinent, and to characterise its molecular identity and phylogenetic relationships. Methods Total DNA was extracted, and the partial region of the small subunit (SSU) 18S rDNA and ITS-rDNA genes were amplified and sequenced. Genetic diversity was calculated and phylogenetic analysis of the nucleotide sequence data was performed.Results In this study, the molecular profile of this acanthocephalan was generated for the first time. Based on the partial 18S rDNA, interspecific variation between A. kashmirensis with different species of Acanthosentis and were 3.6-10.3% and 22.4-38.2% based on 18S rDNA and ITS-rDNA genes, respectively. We described the phylogenetic relationships of A. kashmirensis compared with other species of the genus and also with members of the family Quadrigyridae. Conclusions The ITS-rDNA sequences of members of the family Quadrigyridae are more variable than 18S rDNA that can be useful for achieving a proper assessment of biodiversity. Sequence data generation from additional species of Acanthosentis will be needed to reconstruct the phylogenetic relationships of this group of acanthocephalans.

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Section: Discussioncontrasting

confidence: 49%

The molecular profile of Acanthogyrus (Acanthosentis) kashmirensis from the Indian subcontinent

Sharifdini

Amin²,

Heckmann

2021

Acta Parasit.

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“…Molecular methods are an important tool for morphological identification, diversity and taxonomic relationships among acanthocephalan species (García-Varela et al ., 2017, 2019; Li et al ., 2018; Amin et al ., 2019a, b, c; Lisitsyna et al ., 2019; Menasria et al ., 2019; Sharifdini et al ., 2020). The phylogenetic relationships and systematic position of Pallisentis are poorly explored compared to other genera.…”

Section: Discussionmentioning

confidence: 99%

Redescription and molecular analysis ofPallisentis(Pallisentis)nandaiSarkar, 1953 (Acanthocephala: Quadrigyridae) in India

Amin¹,

Heckmann

Chaudhary

et al. 2021

J. Helminthol.

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Pallisentis (Pallisentis) nandai Sarkar, 1953 is a freshwater fish parasite restricted to the Indian subcontinent in the Ganga River and its tributaries. It was described from the leaffish, Nandus nandus (Hamilton) from the Ganga River delta at Calcutta. We recovered variant specimens from the same host species from the Ganga near its headwaters at Bijnor about 1500 km away. Our specimens were clearly identifiable as P. nandai but varied considerably from those in the original description, especially in the size of proboscis hooks, receptacle and lemnisci. The original description was incomplete (missing line drawings of female trunk and reproductive system, male trunk, complete proboscis, hooks and hook roots) and inaccurate (proboscis, hooks, receptacle wall), and some measurements were lumped together for both sexes. We provide a complete description and include new morphological information including the first description of para-receptacle structure in the genus Pallisentis Van Cleave, 1928, scanning electron microscopy and microscope images, molecular analysis, and energy dispersive X-ray analysis (EDXA) of hooks and spines of our specimens for the first time. Additional details of proboscis hook roots, trunk spines, micropores and micropore distribution are described. The unique metal composition of hooks (EDXA) demonstrated a considerably high but variable level of sulphur and negligible level of calcium in collar and trunk spines and hook tips, but a higher level of sulphur and calcium at the hook basal arch than at the hook tip and edge. A comparison with the EDXA pattern of another species of Pallisentis, P. İndica Mital & Lal, 1976, were considerably different. The phylogenetic position of P. nandai within Eoacanthocephala was generated to assess the molecular characterization based on 18S and ITS1-5.8S-ITS2 ribosomal DNA sequences. Maximum likelihood and Bayesian inference analyses placed P. nandai in a clade with other Pallisentis species under the family Quadrigyridae. This is the first report based on molecular evidence for P. nandai.

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“…(A.) maroccanus Dollfus, 1951 [33] sequence collected from a specimen found in barb Luciobarbus callensis from Algeria (MK953673 [70]) only encompasses the D1-D3 regions of the 28S rRNA gene and differed by 16% based on a 757-bp alignment. The 28S rDNA sequence in GenBank of A.…”

Section: Molecular Identification Of the Acanthocephalanmentioning

confidence: 99%

“…Acanthogyrus (A.) maroccanus, is known from several barb fish species and is considered endemic in North Africa [33,68,70]. Specimens of this species have significantly larger anterior, middle, and posterior proboscis hooks (62 lm, 62 lm, 48 lm, respectively) and only 12-18 rows of spines on the body (see redescription [70]), and our 28S rRNA gene sequences differed from the A.…”

Section: Remarksmentioning

confidence: 99%

Parasites of Moroccan desert Coptodon guineensis (Pisces, Cichlidae): transition and resilience in a simplified hypersaline ecosystem

et al. 2022

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Sebkha Imlili (Atlantic Sahara) is a salt flat with over 160 permanent holes of hypersaline water generated in the Holocene and inhabited by euryhaline organisms that are considered to be relics of the past, including the cichlid fish Coptodon guineensis. We surveyed the fish parasites four times over one year, to i) identify the parasites, and ii) determine possible seasonality in infection patterns. Over 60% of the fish were infected by one to three helminths: an acanthocephalan in the intestine and two digenean metacercariae in the kidney, spleen, liver, muscle, and mesenteries. The acanthocephalan Acanthogyrus (Acanthosentis) cf. tilapiae was identified morphologically and molecularly; only one digenean (the heterophyid Pygidiopsis genata) could be identified molecularly. Both identified parasites were present throughout the sampling periods; the unidentified metacercariae were present only in summer and fall. Mean intensities, but not prevalence of infection by the acanthocephalan, reflected a biannual pattern of transmission. Infection accrued with fish size, possibly due to cannibalism. Because the water holes include only a few invertebrates, the intermediate hosts of these parasites can be inferred to be the gastropod Ecrobia ventrosa for the digeneans and either the copepod Cletocamtpus retrogressus or the ostracod Cyprideis torosa for the acanthocephalan. This ecosystem appears stable and provides a window into the past, as the acanthocephalan likely switched from freshwater tilapia to C. guineensis when the Sebkha formed. However, this is a vulnerable environment where the survival of these parasites depends on interactions maintained among only very few hosts.

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Redescription ofAcanthogyrus(Acanthosentis)maroccanus(Dollfus, 1951) (Acanthocephala: Quadrigyridae), a parasite of the Algerian barbLuciobarbus callensis(Valenciennes) (Cyprinidae) in Algeria, and first molecular data

Cited by 4 publications

References 38 publications

The molecular profile of Acanthogyrus (Acanthosentis) kashmirensis from the Indian subcontinent

The molecular profile of Acanthogyrus (Acanthosentis) kashmirensis from the Indian subcontinent

Redescription and molecular analysis ofPallisentis(Pallisentis)nandaiSarkar, 1953 (Acanthocephala: Quadrigyridae) in India

Parasites of Moroccan desert Coptodon guineensis (Pisces, Cichlidae): transition and resilience in a simplified hypersaline ecosystem

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