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Holobiont suture zones: Parasite evidence across the European house mouse hybrid zone

. 2018 Dec ; 27 (24) : 5214-5227. [epub] 20181210

Language English Country Great Britain, England Media print-electronic

Document type Journal Article, Research Support, Non-U.S. Gov't

Grant support
14-35009S Grantová Agentura České Republiky - International
15-13265S Grantová Agentura České Republiky - International
16-20049S Grantová Agentura České Republiky - International
16-23773S Grantová Agentura České Republiky - International
Czech Science Foundation is the english translation of Grantova Agentura Ceske Republiky - International

Parasite hybrid zones resulting from host secondary contact have never been described in nature although parasite hybridization is well known and secondary contact should affect them similarly to free-living organisms. When host populations are isolated, diverge and recontact, intimate parasites (host specific, direct life cycle) carried during isolation will also meet and so may form parasite hybrid zones. If so, we hypothesize these should be narrower than the host's hybrid zone as shorter parasite generation time allows potentially higher divergence. We investigate multilocus genetics of two parasites across the European house mouse hybrid zone. We find each host taxon harbours its own parasite taxa. These also hybridize: Parasite hybrid zones are significantly narrower than the host's. Here, we show a host hybrid zone is a suture zone for a subset of its parasite community and highlight the potential of such systems as windows on the evolutionary processes of host-parasite interactions and recombinant pathogen emergence.

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