FN Archimer Export Format PT J TI Mastomys natalensis (Smith, 1834) as a natural host for Schistosoma haematobium (Bilharz, 1852) Weinland, 1858 x Schistosoma bovis Sonsino, 1876 introgressive hybrids BT AF Savassi, Boris A.E.S. Dobigny, Gauthier Etougbétché, Jonas R. Avocegan, Thalasse T. Quinsou, François T. Gauthier, Philippe Ibikounlé, Moudachirou Moné, Hélène Mouahid, Gabriel AS 1:1,2;2:3,4;3:3;4:3;5:3;6:4;7:2;8:1;9:1; FF 1:;2:;3:;4:;5:;6:;7:;8:;9:; C1 University of Perpignan Via Domitia, IHPE UMR 5244, CNRS, IFREMER, University of Montpellier, 58 Avenue Paul Alduy, Bât. R, F-66860, Perpignan, France Faculté des Sciences et Techniques, Université d’Abomey-Calavi, 01BP526, Cotonou, Benin Ecole Polytechnique d’Abomey-Calavi, Laboratoire de Recherche en Biologie Appliquée, Université d’Abomey-Calavi, Cotonou, Benin Institut de Recherche pour le Développement, Centre de Biologie et de Gestion des Populations (UMR IRD/INRA/CIRAD/Institut Agro), Montferrier-sur-Lez, France C2 UNIV PERPIGNAN, FRANCE UNIV ABOMEY CALAVI, BENIN UNIV ABOMEY CALAVI, BENIN IRD, FRANCE UM IHPE IN WOS Cotutelle UMR copubli-france copubli-int-hors-europe copubli-sud IF 2.383 TC 14 UR https://archimer.ifremer.fr/doc/00685/79678/82456.pdf LA English DT Article DE ;Schistosoma haematobium x Schistosoma bovis;Cercarial chronobiology;Mastomys natalensis;Rattus rattus;Schistosome transmission AB 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. PY 2021 PD MAY SO Parasitology Research SN 0932-0113 PU Springer Science and Business Media LLC VL 120 IS 5 UT 000626790100001 BP 1755 EP 1770 DI 10.1007/s00436-021-07099-7 ID 79678 ER EF