Mastomys natalensis (Smith, 1834) as a natural host for Schistosoma haematobium (Bilharz, 1852) Weinland, 1858 x Schistosoma bovis Sonsino, 1876 introgressive hybrids
Cercarial emission of schistosomes is a determinant in the transmission to the definitive host and constitutes a good marker to identify which definitive host is responsible for transmission, mainly in introgressive hybridization situations. Our goal was to test the hypothesis that micro-mammals pla...
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ftird:oai:ird.fr:fdi:010081097 2024-09-09T20:04:57+00:00 Mastomys natalensis (Smith, 1834) as a natural host for Schistosoma haematobium (Bilharz, 1852) Weinland, 1858 x Schistosoma bovis Sonsino, 1876 introgressive hybrids Savassi, Baes /Dobigny, Gauthier Etougbetche, J. R. Avocegan, T. T. Quinsou, F. T. /Gauthier, Philippe Ibikounle, M. Mone, H. Mouahid, G. BENIN 2021 https://www.documentation.ird.fr/hor/fdi:010081097 EN eng https://www.documentation.ird.fr/hor/fdi:010081097 oai:ird.fr:fdi:010081097 Savassi Baes, Dobigny Gauthier, Etougbetche J. R., Avocegan T. T., Quinsou F. T., Gauthier Philippe, Ibikounle M., Mone H., Mouahid G. Mastomys natalensis (Smith, 1834) as a natural host for Schistosoma haematobium (Bilharz, 1852) Weinland, 1858 x Schistosoma bovis Sonsino, 1876 introgressive hybrids. 2021, 120 (5), 1755-1770 Schistosoma haematobium x Schistosoma bovis Cercarial chronobiology Mastomys natalensis Rattus rattus Schistosome transmission text 2021 ftird 2024-08-15T05:57:40Z Cercarial emission of schistosomes is a determinant in the transmission to the definitive host and constitutes a good marker to identify which definitive host is responsible for transmission, mainly in introgressive hybridization situations. Our goal was to test the hypothesis that micro-mammals play a role in Schistosoma haematobium, S. bovis, and/or S. haematobium x S. bovis transmission. Small mammal sampling was conducted in seven semi-lacustrine villages of southern Benin. Among the 62 animals trapped, 50 individuals were investigated for Schistosoma adults and eggs: 37 Rattus rattus, 3 Rattus norvegicus, 9 Mastomys natalensis, and 1 Crocidura olivieri. Schistosoma adults were found in four R. rattus and two M. natalensis, with a local prevalence reaching 80% and 50%, respectively. Two cercarial chronotypes were found from Bulinus globosus experimentally infected with miracidia extracted from naturally infected M. natalensis: a late diurnal and nocturnal chronotype, and an early diurnal, late diurnal, and nocturnal chronotype. The cytochrome C oxidase subunit I mtDNA gene of the collected schistosomes (adults, miracidia, and cercariae) belonged to the S. bovis clade. Eleven internal transcribed spacer rDNA profiles were found; four belonged to S. bovis and seven to S. haematobium x S. bovis. These molecular results together with the observed multi-peak chronotypes add M. natalensis as a new host implicated in S. haematobium x S. bovis transmission. We discuss the origin of the new chronotypes which have become more complex with the appearance of several peaks in a 24-h day. We also discuss how the new populations of offspring may optimize intra-host ecological niche, host spectrum, and transmission time period. Text Rattus rattus IRD (Institute de recherche pour le développement): Horizon |
institution |
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collection |
IRD (Institute de recherche pour le développement): Horizon |
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language |
English |
topic |
Schistosoma haematobium x Schistosoma bovis Cercarial chronobiology Mastomys natalensis Rattus rattus Schistosome transmission |
spellingShingle |
Schistosoma haematobium x Schistosoma bovis Cercarial chronobiology Mastomys natalensis Rattus rattus Schistosome transmission Savassi, Baes /Dobigny, Gauthier Etougbetche, J. R. Avocegan, T. T. Quinsou, F. T. /Gauthier, Philippe Ibikounle, M. Mone, H. Mouahid, G. Mastomys natalensis (Smith, 1834) as a natural host for Schistosoma haematobium (Bilharz, 1852) Weinland, 1858 x Schistosoma bovis Sonsino, 1876 introgressive hybrids |
topic_facet |
Schistosoma haematobium x Schistosoma bovis Cercarial chronobiology Mastomys natalensis Rattus rattus Schistosome transmission |
description |
Cercarial emission of schistosomes is a determinant in the transmission to the definitive host and constitutes a good marker to identify which definitive host is responsible for transmission, mainly in introgressive hybridization situations. Our goal was to test the hypothesis that micro-mammals play a role in Schistosoma haematobium, S. bovis, and/or S. haematobium x S. bovis transmission. Small mammal sampling was conducted in seven semi-lacustrine villages of southern Benin. Among the 62 animals trapped, 50 individuals were investigated for Schistosoma adults and eggs: 37 Rattus rattus, 3 Rattus norvegicus, 9 Mastomys natalensis, and 1 Crocidura olivieri. Schistosoma adults were found in four R. rattus and two M. natalensis, with a local prevalence reaching 80% and 50%, respectively. Two cercarial chronotypes were found from Bulinus globosus experimentally infected with miracidia extracted from naturally infected M. natalensis: a late diurnal and nocturnal chronotype, and an early diurnal, late diurnal, and nocturnal chronotype. The cytochrome C oxidase subunit I mtDNA gene of the collected schistosomes (adults, miracidia, and cercariae) belonged to the S. bovis clade. Eleven internal transcribed spacer rDNA profiles were found; four belonged to S. bovis and seven to S. haematobium x S. bovis. These molecular results together with the observed multi-peak chronotypes add M. natalensis as a new host implicated in S. haematobium x S. bovis transmission. We discuss the origin of the new chronotypes which have become more complex with the appearance of several peaks in a 24-h day. We also discuss how the new populations of offspring may optimize intra-host ecological niche, host spectrum, and transmission time period. |
format |
Text |
author |
Savassi, Baes /Dobigny, Gauthier Etougbetche, J. R. Avocegan, T. T. Quinsou, F. T. /Gauthier, Philippe Ibikounle, M. Mone, H. Mouahid, G. |
author_facet |
Savassi, Baes /Dobigny, Gauthier Etougbetche, J. R. Avocegan, T. T. Quinsou, F. T. /Gauthier, Philippe Ibikounle, M. Mone, H. Mouahid, G. |
author_sort |
Savassi, Baes |
title |
Mastomys natalensis (Smith, 1834) as a natural host for Schistosoma haematobium (Bilharz, 1852) Weinland, 1858 x Schistosoma bovis Sonsino, 1876 introgressive hybrids |
title_short |
Mastomys natalensis (Smith, 1834) as a natural host for Schistosoma haematobium (Bilharz, 1852) Weinland, 1858 x Schistosoma bovis Sonsino, 1876 introgressive hybrids |
title_full |
Mastomys natalensis (Smith, 1834) as a natural host for Schistosoma haematobium (Bilharz, 1852) Weinland, 1858 x Schistosoma bovis Sonsino, 1876 introgressive hybrids |
title_fullStr |
Mastomys natalensis (Smith, 1834) as a natural host for Schistosoma haematobium (Bilharz, 1852) Weinland, 1858 x Schistosoma bovis Sonsino, 1876 introgressive hybrids |
title_full_unstemmed |
Mastomys natalensis (Smith, 1834) as a natural host for Schistosoma haematobium (Bilharz, 1852) Weinland, 1858 x Schistosoma bovis Sonsino, 1876 introgressive hybrids |
title_sort |
mastomys natalensis (smith, 1834) as a natural host for schistosoma haematobium (bilharz, 1852) weinland, 1858 x schistosoma bovis sonsino, 1876 introgressive hybrids |
publishDate |
2021 |
url |
https://www.documentation.ird.fr/hor/fdi:010081097 |
op_coverage |
BENIN |
genre |
Rattus rattus |
genre_facet |
Rattus rattus |
op_relation |
https://www.documentation.ird.fr/hor/fdi:010081097 oai:ird.fr:fdi:010081097 Savassi Baes, Dobigny Gauthier, Etougbetche J. R., Avocegan T. T., Quinsou F. T., Gauthier Philippe, Ibikounle M., Mone H., Mouahid G. Mastomys natalensis (Smith, 1834) as a natural host for Schistosoma haematobium (Bilharz, 1852) Weinland, 1858 x Schistosoma bovis Sonsino, 1876 introgressive hybrids. 2021, 120 (5), 1755-1770 |
_version_ |
1809937243022819328 |