Acanthocéphales d’Amazonie. Redescription d’Oligacanthorhynchus iheringi Travassos 1916 et description de Neoechinorhynchus buttneræ n. sp. (Neoacanthocephala-Neoechinorhynchidæ)

Golvan, Yves J.

doi:10.1051/parasite/1956315500

Cited by 20 publications

(18 citation statements)

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“…The resulting phylogenetic tree found P. caballeroi (Polyacanthocephala) sister to P. celatus (Eoacanthocephala: order Gyracanthocephala) with rather strong nodal support (78% BP in ML and 1.00 BPP in BI), and Paratenuisentis ambiguus (Eoacanthocephala: Neoehinorhynchida) was sister to the former two species. The nested position of P. caballeroi within Eoacanthocephala suggests eoacanthocephalan paraphyly and contradicts an earlier morphology‐based classification system that placed polyacanthorhynchid species within the Palaeacanthocephala (Golvan ; Schmidt & Canaris ; Bullock ; Amin ). This result provides robust support for the sister relationship of Eoacanthocephala and Polyacanthocephala initially asserted from analyses of nuclear rDNA sequences (García‐Varela et al .…”

Section: Resultscontrasting

confidence: 59%

“…Although the four‐class classification system of the phylum is widely supported, the majority of earlier taxonomic authorities classified Acanthocephala into three major groups: Palaeacanthocephala, Archiacanthocephala and Eoacanthocephala (regarded as the most primitive group) (Golvan ). The three‐class system was widely used (Amin ) until Amin () erected a new class, Polyacanthocephala, and a new order, Polyacanthorhynchida, for the monogeneric family Polyacanthorhynchidae, which was initially treated as one of the palaeacanthocephalan family members by Golvan (). The class Polyacanthocephala is represented by four species of the genus Polyacanthorhynchus Travassos, 1920 which are associated with caiman in South America and South Africa (Bullock ; Amin ).…”

Section: Introductionmentioning

confidence: 99%

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Mitogenomic phylogeny of Acanthocephala reveals novel Class relationships

et al. 2016

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K. (2016). Mitogenomic phylogeny of Acanthocephala reveals novel Class relationships. -Zoologica Scripta, 45, 437-454. The Acanthocephala is a phylum of obligate endoparasitic animals comprising four classes (Archiacanthocephala, Palaeacanthocephala, Eoacanthocephala and Polyacanthocephala), although the phylogenetic interrelationships of these classes still remains unresolved. To investigate phylogenetic relationships of major acanthocephalan groups, we characterized the complete mitochondrial genome sequences of two palaeacanthocephalan species Centrorhynchus aluconis and Prosthorhynchus transversus (representing two different families of the order Polymorphida), and Polyacanthorhynchus caballeroi (the first mitogenomic representative of the class Polyacanthocephala) and used these new sequences for phylogenetic analyses, along with 32 platyzoan mtDNAs, including 10 additional acanthocephalans. Phylogenetic analyses using concatenated amino acid sequences for 12 protein-coding genes with maximum likelihood and Bayesian inference methods supported monophyly of Acanthocephala. Within the phylum, Archiacanthocephala was positioned as the sister to the clade containing all three other acanthocephalan classes, with the polyacanthocephalan species P. caballeroi nested within Eoacanthocephala. This result contradicts morphology-based classification systems that treated polyacanthorhynchids as one of the palaeacanthocephalan families, and instead suggests Polyacanthocephala is a member of Eoacanthocephala. Within the Palaeacanthocephala, Polymorphida monophyly was strongly supported and this is inconsistent with nuclear rDNA-based molecular hypotheses that suggest non-monophyly.

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Section: Resultscontrasting

confidence: 59%

Section: Introductionmentioning

confidence: 99%

Mitogenomic phylogeny of Acanthocephala reveals novel Class relationships

et al. 2016

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“…Until recently (Noga, 2010), such registers of fish and/or farming damages were considered rare. At the end of the 90s, Malta et al (2001) described cases of severe infection by the acanthocephalan Neoechinorhynchus buttnerae Golvan, 1956, in the Amazon with the first report of economic losses. Recently, parasitism and subsequently acanthocephalosis have spread rapidly among the main cachama farms in the Amazon region (Chagas et al, 2015;Oliveira et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

Neoechinorhynchus buttnerae (Acanthocephala) infection in farmed Colossoma macropomum: A pathological approach

Jerônimo

Pádua²,

Belo

et al. 2017

Aquaculture

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Infection by the acanthocephalan Neoechinorhynchus buttnerae is considered the most important obstacle in farmed tambaqui or cachama (Colossoma macropomum), the second most cultivated fish species in Brazil. This study describes the occurrence of N. buttnerae in farmed this fish based on parasitological and histopathological analysis in highly infected fish. A total of 102 fish were collected from fish farms located in Brazilian states in the northern region. All of the examined fish were heavily infected by N. buttnerae and showed no signs of anorexia, but heterogeneous growth and cachexia were frequently found. No cases of mortality were observed in fish farms. Macroscopically, the intestines showed hyperaemia, hardening, thickening of the intestinal wall, yellowish mucosal secretion and a bluetongue aspect. Histological sections showed different degrees of penetration of the acanthocephalan proboscis in the intestinal tissue, surpassing the mucosa, submucosa and muscular layer, provoking dilacerations due to their spines as well as an intense inflammatory reaction composed of macrophages, Langerhans cells and lymphocytes, and granuloma formation located mainly in the submucosa layer. Submucosal oedema, an increased number of goblet cells, metaplasia areas and a reduction of the intestinal villi were also observed. The results present an important register of N. buttnerae infection in C. macropomum and contribute to the comprehension of pathogeny caused by these worms. Statement of relevance: Characid fish farming has led to significantly increased fish production in Brazil. However, the most important obstacle is the acanthocephalan infection caused by Neoechinorhynchus buttnerae in the intestinal tract. The infection does not provoke death but cachexia and growth reduction are frequently observed as well as intense pathological conditions in histological sections.

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“…In Brazil, N. macronucleatus (Machado Filho, 1954); N. buttnerae (Golvan, 1956); N. paraguayensis (Machado Filho, 1959b;Nickol & Padilha, 1979); N. spectabilis (Machado Filho, 1959a); N. curemai (Noronha, 1973;Kohn et al, 1985); N. pterodoridis (Thatcher, 1981) and N. pimelodi (Brasil-Sato & Pavanelli, 1998) were described.…”

Section: Taxonomic Studies Of Neoechinorhynchusmentioning

confidence: 99%

“…(Machado Filho, 1954); N. buttnerae from Colossoma macropomum (Golvan, 1956); N. spectabilis from Curimata elegans (Machado Filho, 1959a); N. paraguayensis from "peixe-martin" (Machado Filho, 1959b); Geophagus brasiliensis (Nickol & Padilha, 1979); N. prochilodorum from Prochilodus reticulatus (Nickol & Thatcher, 1971); N. pterodoridis from Pterodoras granulosus (Thatcher, 1981); N. limi from Umbra limi (Muzzall & Buckner, 1982); N. idaohensis from Catostomus columbianus (Amin & Heckmann, 1992) and N. pimelodi from Pimelodus maculatus (Brasil-Sato & Pavanelli, 1998). Noronha (1973) described N. curemai from P. scrofa in the Amazon River, Maicuru, Pará State and Marambaia Island, Rio de Janeiro State.…”

Section: Remarksmentioning

confidence: 99%

Recent Studies on Neoechinorhynchus curemai Noronha, 1973 (Acanthocephala: Neoechinorhynchidae), in Prochilodus lineatus Valenciennes, 1836, from Volta Grande Reservoir, MG, Brazil

et al. 2000

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The present work described helminth parasites of curimbatá, Prochilodus lineatus Valenciennes, 1836 from Volta Grande Reservoir, MG, Brazil. Eighteen fishes with average 46.7 ± 1.1 cm length and 1,674.8 ± 75.6 g weight were collected. Of the analysed fishes, 15 were parasitized with acanthocephalans in the intestine, showing a prevalence of 83.3%. The helminth was identified as Neoechinorhynchus curemai Noronha, 1973 (Acanthocephala: Neoechinorhynchidae). It differs from other species in dimension of characters and morphology. From the original description of N. curemai, it differs from the biggest dimension of testis, elongated cement gland, nucleated lemnisci, eggs size, larger proboscis hooks length in the middle and in the third circle in males and larger hooks in the anterior circle in females. A smaller percentage occupied by the reproductive system in female trunk was reported. The observation of paratypes of N. curemai of Noronha (1973) showed a great similarity with those of the present work. This fact complements the helminth description from elsewhere.

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Acanthocéphales d’Amazonie. Redescription d’Oligacanthorhynchus iheringi Travassos 1916 et description de Neoechinorhynchus buttneræ n. sp. (Neoacanthocephala-Neoechinorhynchidæ)

Cited by 20 publications

References 0 publications

Mitogenomic phylogeny of Acanthocephala reveals novel Class relationships

Mitogenomic phylogeny of Acanthocephala reveals novel Class relationships

Neoechinorhynchus buttnerae (Acanthocephala) infection in farmed Colossoma macropomum: A pathological approach

Recent Studies on Neoechinorhynchus curemai Noronha, 1973 (Acanthocephala: Neoechinorhynchidae), in Prochilodus lineatus Valenciennes, 1836, from Volta Grande Reservoir, MG, Brazil

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