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| Alba, Annia; Vázquez, Antonio A.; Sánchez, Jorge; Lounnas, Manon; Pointier, Jean-pierre; Hurtrez-boussès, Sylvie; Gourbal, Benjamin. |
| Pseudosuccinea columella snails transmit the trematode Fasciola hepatica, but in Cuba, six naturally occurring populations successfully resist parasite infection. Here, we present an updated distribution of P. columella in Cuba; 68 positive sites with the earliest records more abundant in west-central Cuba and with east-central populations generally corresponding to the newest samples. No records were found farther east. The IPA site reported 10.5% prevalence of F. hepatica-infected snails. Population genetics, studied through microsatellites, showed low allelic and multilocus genotypic richness (MLGT), mainly in susceptible populations, strong deviations from panmixia and high self-fertilization rates. Susceptible individuals were grouped in one major... |
| Tipo: Text |
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| Ano: 2019 |
URL: https://archimer.ifremer.fr/doc/00584/69660/67514.pdf |
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| Alba, Annia; Vazquez, Antonio A.; Sanchez, Jorge; Duval, David; Hernandez, Hilda M.; Sabourin, Emeline; Vittecoq, Marion; Hurtrez-bousses, Sylvie; Gourbal, Benjamin. |
| Background: Pseudosuccinea columella is one of the most widespread vectors of Fasciola hepatica, a globally distributed trematode that affects humans, livestock and wildlife. The exclusive occurrence in Cuba of susceptible and naturally-resistant populations to F. hepatica within this snail species, offers a fascinating model for evolutionary biology, health sciences and vector control strategies. In particular, resistance in P. columella is characterized by the encapsulation of the parasite by host's immune cells and has been experimentally tested using different Cuban F. hepatica isolates with no records of successful infection. Here, we aimed to explore for the first time, the effect of different parasite doses, successive exposures and different... |
| Tipo: Text |
Palavras-chave: Snail-trematode interaction; Lymnaeidae; Liver fluke; Experimental infection; Immune priming; Compatibility; Allopatric parasites. |
| Ano: 2018 |
URL: https://archimer.ifremer.fr/doc/00467/57894/71760.pdf |
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