A new chronotype of Schistosoma mansoni: adaptive significance
International audience Objectives To optimize host-to-host transmission, digenean trematodes (parasites) synchronize their cercarial emission patterns with the aquatic activities of their vertebrate hosts. Schistosoma mansoni has a strictly diurnal shedding pattern involving two circadian chronotype...
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fttriple:oai:gotriple.eu:10670/1.edcou1 2023-05-15T18:05:21+02:00 A new chronotype of Schistosoma mansoni: adaptive significance Mouahid, Gabriel Idris, Mohamed A Verneau, Olivier Théron, André Shaban, Mahmoud M A Moné, Hélène Ecologie et évolution des interactions 2011-2014 (2EI) Université de Perpignan Via Domitia (UPVD)-Centre National de la Recherche Scientifique (CNRS) 2012-04-19 https://doi.org/10.1111/j.1365-3156.2012.02988.x https://hal.archives-ouvertes.fr/halsde-00700341 en eng HAL CCSD Wiley-Blackwell halsde-00700341 doi:10.1111/j.1365-3156.2012.02988.x PUBMED: 22512397 10670/1.edcou1 https://hal.archives-ouvertes.fr/halsde-00700341 undefined Hyper Article en Ligne - Sciences de l'Homme et de la Société ISSN: 1360-2276 EISSN: 1365-3156 Tropical Medicine and International Health Tropical Medicine and International Health, Wiley-Blackwell, 2012, 17 (6), pp.727-732. ⟨10.1111/j.1365-3156.2012.02988.x⟩ envir geo Journal Article https://vocabularies.coar-repositories.org/resource_types/c_6501/ 2012 fttriple https://doi.org/10.1111/j.1365-3156.2012.02988.x 2023-01-22T18:48:08Z International audience Objectives To optimize host-to-host transmission, digenean trematodes (parasites) synchronize their cercarial emission patterns with the aquatic activities of their vertebrate hosts. Schistosoma mansoni has a strictly diurnal shedding pattern involving two circadian chronotypes: an early shedding pattern with a mean peak occurring at 11:00 h and a late pattern with a mean peak occurring at 16:00 h. We analysed the cercarial emergence pattern of three schistosome populations from Oman where S. mansoni is resurgent. Methods For each schistosome population, the cercarial emergence pattern was assessed hourly over several days. Because we identified a new chronotype hitherto unknown in S. mansoni, we undertook taxonomic characterization based on egg morphology and mitochondrial DNA sequence (COX1). Results Taxonomic characterization revealed that the three schistosome populations belong to the species S. mansoni. Hence, this is the first report of this species exhibiting a nocturnal chronotype, with the mean peak occurring at 20:00 h. We interpreted the new chronotype as being the result of a lateral transfer of S. mansoni from humans to Rattus rattus. Conclusion The cercarial emergence pattern of S. mansoni from Oman is circadian, exhibiting either a diurnal or a nocturnal phenotype. Article in Journal/Newspaper Rattus rattus Unknown Tropical Medicine & International Health 17 6 727 732 |
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envir geo Mouahid, Gabriel Idris, Mohamed A Verneau, Olivier Théron, André Shaban, Mahmoud M A Moné, Hélène A new chronotype of Schistosoma mansoni: adaptive significance |
topic_facet |
envir geo |
description |
International audience Objectives To optimize host-to-host transmission, digenean trematodes (parasites) synchronize their cercarial emission patterns with the aquatic activities of their vertebrate hosts. Schistosoma mansoni has a strictly diurnal shedding pattern involving two circadian chronotypes: an early shedding pattern with a mean peak occurring at 11:00 h and a late pattern with a mean peak occurring at 16:00 h. We analysed the cercarial emergence pattern of three schistosome populations from Oman where S. mansoni is resurgent. Methods For each schistosome population, the cercarial emergence pattern was assessed hourly over several days. Because we identified a new chronotype hitherto unknown in S. mansoni, we undertook taxonomic characterization based on egg morphology and mitochondrial DNA sequence (COX1). Results Taxonomic characterization revealed that the three schistosome populations belong to the species S. mansoni. Hence, this is the first report of this species exhibiting a nocturnal chronotype, with the mean peak occurring at 20:00 h. We interpreted the new chronotype as being the result of a lateral transfer of S. mansoni from humans to Rattus rattus. Conclusion The cercarial emergence pattern of S. mansoni from Oman is circadian, exhibiting either a diurnal or a nocturnal phenotype. |
author2 |
Ecologie et évolution des interactions 2011-2014 (2EI) Université de Perpignan Via Domitia (UPVD)-Centre National de la Recherche Scientifique (CNRS) |
format |
Article in Journal/Newspaper |
author |
Mouahid, Gabriel Idris, Mohamed A Verneau, Olivier Théron, André Shaban, Mahmoud M A Moné, Hélène |
author_facet |
Mouahid, Gabriel Idris, Mohamed A Verneau, Olivier Théron, André Shaban, Mahmoud M A Moné, Hélène |
author_sort |
Mouahid, Gabriel |
title |
A new chronotype of Schistosoma mansoni: adaptive significance |
title_short |
A new chronotype of Schistosoma mansoni: adaptive significance |
title_full |
A new chronotype of Schistosoma mansoni: adaptive significance |
title_fullStr |
A new chronotype of Schistosoma mansoni: adaptive significance |
title_full_unstemmed |
A new chronotype of Schistosoma mansoni: adaptive significance |
title_sort |
new chronotype of schistosoma mansoni: adaptive significance |
publisher |
HAL CCSD |
publishDate |
2012 |
url |
https://doi.org/10.1111/j.1365-3156.2012.02988.x https://hal.archives-ouvertes.fr/halsde-00700341 |
genre |
Rattus rattus |
genre_facet |
Rattus rattus |
op_source |
Hyper Article en Ligne - Sciences de l'Homme et de la Société ISSN: 1360-2276 EISSN: 1365-3156 Tropical Medicine and International Health Tropical Medicine and International Health, Wiley-Blackwell, 2012, 17 (6), pp.727-732. ⟨10.1111/j.1365-3156.2012.02988.x⟩ |
op_relation |
halsde-00700341 doi:10.1111/j.1365-3156.2012.02988.x PUBMED: 22512397 10670/1.edcou1 https://hal.archives-ouvertes.fr/halsde-00700341 |
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op_doi |
https://doi.org/10.1111/j.1365-3156.2012.02988.x |
container_title |
Tropical Medicine & International Health |
container_volume |
17 |
container_issue |
6 |
container_start_page |
727 |
op_container_end_page |
732 |
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1766176810758832128 |