Molecular detection and phylogenetic placement of a microsporidian from English sole (Pleuronectes vetulus) affected by X-cell pseudotumors

Flatfish tissue samples exhibiting X-cell pseudotumors were tested with a number of ribosomal DNA (rDNA) general primers in polymerase chain reactions (PCRs). Microsporidian primers resulted in the amplification of an rDNA fragment and molecular phylogenetic analysis indicated that although the orga...

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Veröffentlicht in:The Journal of parasitology 2000-08, Vol.86 (4), p.867-871
Hauptverfasser: Khattra, J S, Gresoviac, S J, Kent, M L, Myers, MS, Hedrick, R P, Devlin, R H
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container_title The Journal of parasitology
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creator Khattra, J S
Gresoviac, S J
Kent, M L
Myers, MS
Hedrick, R P
Devlin, R H
description Flatfish tissue samples exhibiting X-cell pseudotumors were tested with a number of ribosomal DNA (rDNA) general primers in polymerase chain reactions (PCRs). Microsporidian primers resulted in the amplification of an rDNA fragment and molecular phylogenetic analysis indicated that although the organism did not relate closely with any current microsporidian genera, it was most similar to Nucleospora salmonis and branched within the Enterocytozoonidae. Re-examination of the original tissues used for DNA extractions revealed the presence of putative microsporidian spores in PCR-positive samples. These observations reiterate the highly sensitive diagnostic feature of PCR, allowing detection of organisms overlooked by conventional methods and demonstrate the occurrence of rare, coinfecting organisms.
doi_str_mv 10.1043/0022-3395(2000)086(0867:MDAPPO)2.0.CO;2
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subjects Enterocytozoonidae
Nucleospora salmonis
Pleuronectes vetulus
title Molecular detection and phylogenetic placement of a microsporidian from English sole (Pleuronectes vetulus) affected by X-cell pseudotumors
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