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Henneguya mauritaniensis n. sp. (Myxozoa) from the arterial bulb of Pagrus caeruleostictus (Valenciennes, 1830) off Mauritania

Identifieur interne : 005B99 ( Main/Exploration ); précédent : 005B98; suivant : 005C00

Henneguya mauritaniensis n. sp. (Myxozoa) from the arterial bulb of Pagrus caeruleostictus (Valenciennes, 1830) off Mauritania

Auteurs : Sidi Khlifa [Mauritanie, Polynésie française] ; Terrence L. Miller [Australie] ; Robert D. Adlard [Australie] ; N'Gor Faye [Sénégal] ; Pierre Sasal [France]

Source :

Parasitology research : (1987) [ 0932-0113 ] ; 2012.

RBID : Pascal:12-0346679

Descripteurs français

Pascal (Inist)
- Parasite, Mauritanie, Henneguya, Pagrus.
Wicri :
- geographic : Mauritanie.

English descriptors

KwdEn :
- Henneguya, Mauritania, Parasite.

Abstract

We describe a new species of myxozoan, Henneguya mauritaniensis n. sp., extracted from the arterial bulb of the bluespotted seabream, Pagrus caeruleostictus (Valenciennes, 1830), collected in Mauritanian waters. Out of the 209 individuals examined, 30.1 % were infected with this new taxon. Spore total length ranged from 15.0 to 20.5 μm with a mean of 17.9 μm. The two polar capsules were equal in size, and pyriform and caudal appendages joined until mid-length. Morphometric analysis revealed significant differences between H. mauritaniensis n. sp. and morphologically similar species from this region as well as congeners known from other sparid hosts. Phylogenetic analysis of 18 S rDNA indicated that this new species is closely related to Henneguya pagri, reported recently from Pagrus major off Japan. Bayesian inference and maximum likelihood analyses of the 18 S rDNA dataset also revealed that species of marine Henneguya reported forming pseudo-cysts in the hearts of their fish hosts were closely related. Histological analysis of the H. mauritaniensis n. sp. pseudocysts embedded in the arterial bulb of P. caeruleostictus suggests that these parasites may cause considerable pathology, which may impact negatively on the health of the fish host. Finally, we discussed the importance of a combination of morphological and molecular analysis for species description because of high variability in size within the same taxa.

Affiliations:

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Le document en format XML

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<author><name sortKey="Khlifa, Sidi" sort="Khlifa, Sidi" uniqKey="Khlifa S" first="Sidi" last="Khlifa">Sidi Khlifa</name>
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<s2>Nouadhibou</s2>
<s3>MRT</s3>
<sZ>1 aut.</sZ>
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<country>Mauritanie</country>
<wicri:noRegion>Nouadhibou</wicri:noRegion>
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<affiliation wicri:level="1"><inist:fA14 i1="04"><s1>USR 3278 EPHE-CNRS CRIOBE and University of Perpignan, BP 1013, Papetoai</s1>
<s2>Moorea</s2>
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<author><name sortKey="Khlifa, Sidi" sort="Khlifa, Sidi" uniqKey="Khlifa S" first="Sidi" last="Khlifa">Sidi Khlifa</name>
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<front><div type="abstract" xml:lang="en">We describe a new species of myxozoan, Henneguya mauritaniensis n. sp., extracted from the arterial bulb of the bluespotted seabream, Pagrus caeruleostictus (Valenciennes, 1830), collected in Mauritanian waters. Out of the 209 individuals examined, 30.1 % were infected with this new taxon. Spore total length ranged from 15.0 to 20.5 μm with a mean of 17.9 μm. The two polar capsules were equal in size, and pyriform and caudal appendages joined until mid-length. Morphometric analysis revealed significant differences between H. mauritaniensis n. sp. and morphologically similar species from this region as well as congeners known from other sparid hosts. Phylogenetic analysis of 18 S rDNA indicated that this new species is closely related to Henneguya pagri, reported recently from Pagrus major off Japan. Bayesian inference and maximum likelihood analyses of the 18 S rDNA dataset also revealed that species of marine Henneguya reported forming pseudo-cysts in the hearts of their fish hosts were closely related. Histological analysis of the H. mauritaniensis n. sp. pseudocysts embedded in the arterial bulb of P. caeruleostictus suggests that these parasites may cause considerable pathology, which may impact negatively on the health of the fish host. Finally, we discussed the importance of a combination of morphological and molecular analysis for species description because of high variability in size within the same taxa.</div>
</front>
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Henneguya mauritaniensis n. sp. (Myxozoa) from the arterial bulb of Pagrus caeruleostictus (Valenciennes, 1830) off Mauritania

Henneguya mauritaniensis n. sp. (Myxozoa) from the arterial bulb of Pagrus caeruleostictus (Valenciennes, 1830) off Mauritania

Source :

Descripteurs français

English descriptors

Abstract

Links toward previous steps (curation, corpus...)

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri