Acquisition of fungi from the environment modifies ambrosia beetle mycobiome during invasion.

摘要: Microbial symbionts can play critical roles when their host attempts to colonize a new habitat. The lack of symbiont adaptation in fact hinder the invasion process host. This scenario could change if exotic species are able acquire microorganisms from invaded environment. Understanding ecological factors that influence take-up is thus essential clarify mechanisms behind biological invasions. In this study, we tested whether different forest habitats structure fungal communities associated with ambrosia beetles. We collected individuals most widespread (Xylosandrus germanus) and native (Xyleborinus saxesenii) beetle Europe several old-growth restored forests. characterized both via metabarcoding. showed habitat shaped community fungi species, but effect was stronger for X. germanus. Our results support hypothesis direct contact mycobiome environment might lead an fungi. likely favored by occurrence bottleneck at level and/or disruption sustaining co-evolved insect-fungi symbiosis. study contributes understanding affecting insect-microbes interactions, helping