SSCP-based identi®cation of members within the Pseudoterranova decipiens complex (Nematoda: Ascaridoidea: Anisakidae) using genetic markers in the internal transcribed spacers of ribosomal DNA
The anisakid nematodes morphologically corresponding with Pseudoterranova decipiens sensu lato (s.l.) (Krabbe, 1878) from different seal or sea lion hosts and geographical origins, previously identi®ed as Pseudoterranova krabbei, P. decipiens (s.s.), P. bulbosa, P. azarasi and P. cattani by multiloc...
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2002
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ftbbaunivipb:oai:repository.ipb.ac.id:123456789/30121 2023-05-15T13:52:36+02:00 SSCP-based identi®cation of members within the Pseudoterranova decipiens complex (Nematoda: Ascaridoidea: Anisakidae) using genetic markers in the internal transcribed spacers of ribosomal DNA Zhu, X.Q. D'Amelio, S. Palm, H.W. Paggi, L. Nascimento, M. George Gasser, R.B. 2002 http://repository.ipb.ac.id/handle/123456789/30121 unknown IPB (Bogor Agricultural University) http://repository.ipb.ac.id/handle/123456789/30121 2002 ftbbaunivipb 2011-09-02T09:59:04Z The anisakid nematodes morphologically corresponding with Pseudoterranova decipiens sensu lato (s.l.) (Krabbe, 1878) from different seal or sea lion hosts and geographical origins, previously identi®ed as Pseudoterranova krabbei, P. decipiens (s.s.), P. bulbosa, P. azarasi and P. cattani by multilocus enzyme electrophoresis, were characterized using a DNA approach. Also a population of P. decipiens (s.l.) from Chaenocephalus aceratus, the black®n ice®sh, from Antarctica and another from Osmerus eperlanus, the European smelt, from Germany were included in the study. The ®rst (ITS-1) and second (ITS-2) internal transcribed spacers (ITS) of ribosomal DNA (rDNA) were ampli®ed by PCR from individual nematodes and analysed by single-strand conformation polymorphism (SSCP), followed by selective sequencing. While no variation in single-stranded ITS-1 and ITS-2 pro®les was detected among samples representing each of the species or populations (with the exception of slight microheterogeneity), SSCP analysis of the ITS-2 amplicons allowed the unequivocal differentiation of all of the 5 sibling species of P. decipiens (s.l.) examined, which was supported by sequence differences in ITS rDNA. Samples representing the P. decipiens (s.l.) population from O. eperlanus had the same SSCP pro®le as those of P. decipiens (s.s.), which was supported by a lack of nucleotide difference in the ITS between them, suggesting that the former represented P. decipiens (s.s.). Based on SSCP results and ITS sequence data, P. decipiens (s.l.) from C. aceratus was genetically most distinct with respect to all other members of Pseudoterranova examined, which indicated that it may represent P. decipiens E (based on geographical origin) or a distinct species. These ®ndings and the molecular approach taken should have important implications for studying the life-cycles, transmission patterns, epidemiology and population genetics of these anisakid nematodes, and the diagnosis of their infections. Other/Unknown Material Antarc* Antarctica Bogor Agricultural University: IPB Scientific Repository (Institut Pertanian Bogoar) |
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Open Polar |
collection |
Bogor Agricultural University: IPB Scientific Repository (Institut Pertanian Bogoar) |
op_collection_id |
ftbbaunivipb |
language |
unknown |
description |
The anisakid nematodes morphologically corresponding with Pseudoterranova decipiens sensu lato (s.l.) (Krabbe, 1878) from different seal or sea lion hosts and geographical origins, previously identi®ed as Pseudoterranova krabbei, P. decipiens (s.s.), P. bulbosa, P. azarasi and P. cattani by multilocus enzyme electrophoresis, were characterized using a DNA approach. Also a population of P. decipiens (s.l.) from Chaenocephalus aceratus, the black®n ice®sh, from Antarctica and another from Osmerus eperlanus, the European smelt, from Germany were included in the study. The ®rst (ITS-1) and second (ITS-2) internal transcribed spacers (ITS) of ribosomal DNA (rDNA) were ampli®ed by PCR from individual nematodes and analysed by single-strand conformation polymorphism (SSCP), followed by selective sequencing. While no variation in single-stranded ITS-1 and ITS-2 pro®les was detected among samples representing each of the species or populations (with the exception of slight microheterogeneity), SSCP analysis of the ITS-2 amplicons allowed the unequivocal differentiation of all of the 5 sibling species of P. decipiens (s.l.) examined, which was supported by sequence differences in ITS rDNA. Samples representing the P. decipiens (s.l.) population from O. eperlanus had the same SSCP pro®le as those of P. decipiens (s.s.), which was supported by a lack of nucleotide difference in the ITS between them, suggesting that the former represented P. decipiens (s.s.). Based on SSCP results and ITS sequence data, P. decipiens (s.l.) from C. aceratus was genetically most distinct with respect to all other members of Pseudoterranova examined, which indicated that it may represent P. decipiens E (based on geographical origin) or a distinct species. These ®ndings and the molecular approach taken should have important implications for studying the life-cycles, transmission patterns, epidemiology and population genetics of these anisakid nematodes, and the diagnosis of their infections. |
author |
Zhu, X.Q. D'Amelio, S. Palm, H.W. Paggi, L. Nascimento, M. George Gasser, R.B. |
spellingShingle |
Zhu, X.Q. D'Amelio, S. Palm, H.W. Paggi, L. Nascimento, M. George Gasser, R.B. SSCP-based identi®cation of members within the Pseudoterranova decipiens complex (Nematoda: Ascaridoidea: Anisakidae) using genetic markers in the internal transcribed spacers of ribosomal DNA |
author_facet |
Zhu, X.Q. D'Amelio, S. Palm, H.W. Paggi, L. Nascimento, M. George Gasser, R.B. |
author_sort |
Zhu, X.Q. |
title |
SSCP-based identi®cation of members within the Pseudoterranova decipiens complex (Nematoda: Ascaridoidea: Anisakidae) using genetic markers in the internal transcribed spacers of ribosomal DNA |
title_short |
SSCP-based identi®cation of members within the Pseudoterranova decipiens complex (Nematoda: Ascaridoidea: Anisakidae) using genetic markers in the internal transcribed spacers of ribosomal DNA |
title_full |
SSCP-based identi®cation of members within the Pseudoterranova decipiens complex (Nematoda: Ascaridoidea: Anisakidae) using genetic markers in the internal transcribed spacers of ribosomal DNA |
title_fullStr |
SSCP-based identi®cation of members within the Pseudoterranova decipiens complex (Nematoda: Ascaridoidea: Anisakidae) using genetic markers in the internal transcribed spacers of ribosomal DNA |
title_full_unstemmed |
SSCP-based identi®cation of members within the Pseudoterranova decipiens complex (Nematoda: Ascaridoidea: Anisakidae) using genetic markers in the internal transcribed spacers of ribosomal DNA |
title_sort |
sscp-based identi®cation of members within the pseudoterranova decipiens complex (nematoda: ascaridoidea: anisakidae) using genetic markers in the internal transcribed spacers of ribosomal dna |
publisher |
IPB (Bogor Agricultural University) |
publishDate |
2002 |
url |
http://repository.ipb.ac.id/handle/123456789/30121 |
genre |
Antarc* Antarctica |
genre_facet |
Antarc* Antarctica |
op_relation |
http://repository.ipb.ac.id/handle/123456789/30121 |
_version_ |
1766257018833731584 |