dc.contributor.author | Kyrkjeeide, Magni Olsen | |
dc.contributor.author | Hassel, Kristian | |
dc.contributor.author | Flatberg, Kjell Ivar | |
dc.contributor.author | Shaw, A. Jonathan | |
dc.contributor.author | Brochmann, Christian | |
dc.contributor.author | Stenøien, Hans K. | |
dc.date.accessioned | 2017-11-16T13:01:25Z | |
dc.date.available | 2017-11-16T13:01:25Z | |
dc.date.created | 2016-07-22T09:13:00Z | |
dc.date.issued | 2016 | |
dc.identifier.citation | Journal of Biogeography. 2016, 43 (6), 1215-1226. | nb_NO |
dc.identifier.issn | 0305-0270 | |
dc.identifier.uri | http://hdl.handle.net/11250/2466703 | |
dc.description.abstract | Aim
Disjunctly distributed peatmosses (Sphagnum) have been found to exhibit little genetic structure over regional and intercontinental scales, mainly caused by high ability for transoceanic long-distance dispersal. Although, most Northern Hemisphere peatmoss species have wide circumboreal/nemoral ranges, little is known about the magnitude and effects of long-distance dispersal and barriers in shaping the genetic structure of such species. We investigate whether high dispersal capacity has caused genetic homogeneity across broad areas of the Northern Hemisphere, or whether barriers act to shape genetic structure across different species with similar distributional ranges.
Location
Northern Hemisphere.
Methods
We studied genetic variation and structure in six Sphagnum species using 19 microsatellite loci.
Results
Four out of six species were genetically structured in similar ways; with mainly one Beringian and one Atlantic group. Overall, both the North American and Eurasian continents seemed to act as a barrier to gene flow in several species. However, the most abrupt breakpoint between genetic groups was found in south-east Alaska.
Main conclusions
We found evidence for extensive gene flow between regions across the Northern Hemisphere among peatmosses, with oceans seemingly acting as weaker barriers to gene flow than landmasses. Plants from the amphi-Atlantic and amphi-Beringian regions of several species were genetically differentiated. Similar genetic structuring across several species, indicate that spore-producing species do not disperse freely across their entire distributional range, but are likely limited by wind directions, landmass barriers and/or habitat availability. | nb_NO |
dc.language.iso | eng | nb_NO |
dc.publisher | Wiley | nb_NO |
dc.title | Long-distance dispersal and barriers shape genetic structure of peatmosses (Sphagnum) across the Northern Hemisphere | nb_NO |
dc.type | Journal article | nb_NO |
dc.type | Peer reviewed | nb_NO |
dc.description.version | acceptedVersion | nb_NO |
dc.source.pagenumber | 1215-1226 | nb_NO |
dc.source.volume | 43 | nb_NO |
dc.source.journal | Journal of Biogeography | nb_NO |
dc.source.issue | 6 | nb_NO |
dc.identifier.doi | 10.1111/jbi.12716 | |
dc.identifier.cristin | 1368938 | |
dc.description.localcode | This is the peer reviewed version of the following article: [Long-distance dispersal and barriers shape genetic structure of peatmosses (Sphagnum) across the Northern Hemisphere], which has been published in final form at [http://onlinelibrary.wiley.com/doi/10.1111/jbi.12716/abstract]. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving. | nb_NO |
cristin.unitcode | 194,31,10,0 | |
cristin.unitname | Seksjon for naturhistorie | |
cristin.ispublished | true | |
cristin.fulltext | original | |
cristin.qualitycode | 2 | |