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Does host socio-spatial behavior lead to a fine-scale spatial genetic structure in its associated parasites?


ABSTRACT: Gastro-intestinal nematodes, especially Haemonchus contortus, are widespread pathogenic parasites of small ruminants. Studying their spatial genetic structure is as important as studying host genetic structure to fully understand host-parasite interactions and transmission patterns. For parasites having a simple life cycle (e.g., monoxenous parasites), gene flow and spatial genetic structure are expected to strongly rely on the socio-spatial behavior of their hosts. Based on five microsatellite loci, we tested this hypothesis for H. contortus sampled in a wild Mediterranean mouflon population (Ovis gmelini musimon × Ovis sp.) in which species- and environment-related characteristics have been found to generate socio-spatial units. We nevertheless found that their parasites had no spatial genetic structure, suggesting that mouflon behavior was not enough to limit parasite dispersal in this study area and/or that other ecological and biological factors were involved in this process, for example other hosts, the parasite life cycle, or the study area history.

SUBMITTER: Portanier E 

PROVIDER: S-EPMC6836744 | biostudies-literature | 2019

REPOSITORIES: biostudies-literature

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Does host socio-spatial behavior lead to a fine-scale spatial genetic structure in its associated parasites?

Portanier Elodie E   Garel Mathieu M   Devillard Sébastien S   Duhayer Jeanne J   Poirel Marie-Thérèse MT   Henri Hélène H   Régis Corinne C   Maillard Daniel D   Redman Elizabeth E   Itty Christian C   Michel Patricia P   Bourgoin Gilles G  

Parasite (Paris, France) 20191107


Gastro-intestinal nematodes, especially Haemonchus contortus, are widespread pathogenic parasites of small ruminants. Studying their spatial genetic structure is as important as studying host genetic structure to fully understand host-parasite interactions and transmission patterns. For parasites having a simple life cycle (e.g., monoxenous parasites), gene flow and spatial genetic structure are expected to strongly rely on the socio-spatial behavior of their hosts. Based on five microsatellite  ...[more]

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