Show simple item record

dc.contributor.authorBakke, Beate Banken
dc.contributor.authorWilson, Robert Charles
dc.contributor.authorRudi, Knut
dc.date.accessioned2012-04-10T13:17:53Z
dc.date.available2012-04-10T13:17:53Z
dc.date.issued2011
dc.identifier.issn1873-1511
dc.identifier.urihttp://hdl.handle.net/11250/134392
dc.description.abstractCo-dispersal is of primary importance in symbiotic relations between macro- and micro-organisms. Obligate symbionts generally follow the same dispersal pattern as their host, while it still remains unresolved whether hosts and their facultative symbionts follow the same dispersal patterns. Here we addressed the question of symbiont and host co-dispersal by analyses of the earthworm Lumbricus terrestris, and its facultative bacterial symbiont Verminephrobacter. We analyzed co-dispersal by direct sequence-based typing of the earthworm mitochondrial ND4, and the symbiont adk genes, respectively. A total of 96 earthworms from Norwegian (n = 20), German (n = 20), English (n = 31) and Canadian (n = 25) populations were analyzed. We found that the earthworms were mainly endemic, while the symbiont showed a more complex dispersal pattern. The symbiont showed a significant difference in prevalence between the geographic regions. In addition, we found a low degree of co-evolution between host and symbiont, with some of the symbiont sequence types being globally distributed. Future research, however, is needed to resolve whether the symbiont is truly globally distributed, in contrast to its endemic host.no_NO
dc.language.isoengno_NO
dc.relation.urihttp://www.sciencedirect.com/science/article/pii/S0031405611000059
dc.subjectphylogeographyno_NO
dc.subjectsymbiosisno_NO
dc.subjectendemismno_NO
dc.subjectearthwormno_NO
dc.subjectmicroorganismno_NO
dc.titlePrevalence and dispersal of a facultative bacterial symbiont associated with an endemic metazoan hostno_NO
dc.typeJournal articleno_NO
dc.typePeer reviewedno_NO
dc.source.pagenumber153-157no_NO
dc.source.volume54
dc.source.journalPedobiologia
dc.source.issue2


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record