uu.seUppsala University Publications
Change search
ReferencesLink to record
Permanent link

Direct link
Global biogeography of the ectomycorrhizal/sebacina lineage (Fungi, Sebacinales) as revealed from comparative phylogenetic analyses
Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Organismal Biology, Systematic Biology.
Show others and affiliations
2014 (English)In: Molecular Ecology, ISSN 0962-1083, E-ISSN 1365-294X, Vol. 23, no 16, 4168-4183 p.Article in journal (Refereed) Published
Abstract [en]

Compared with plants and animals, large-scale biogeographic patterns of microbes including fungi are poorly understood. By the use of a comparative phylogenetic approach and ancestral state reconstructions, we addressed the global biogeography, rate of evolution and evolutionary origin of the widely distributed ectomycorrhizal (EcM) /sebacina lineage that forms a large proportion of the Sebacinales order. We downloaded all publicly available internal transcribed spacer (ITS) sequences and metadata and supplemented sequence information from three genes to construct dated phylogenies and test biogeographic hypotheses. The /sebacina lineage evolved 45-57Myr ago that groups it with relatively young EcM taxa in other studies. The most parsimonious origin for /sebacina is inferred to be North American temperate coniferous forests. Among biogeographic traits, region and biome exhibited stronger phylogenetic signal than host family. Consistent with the resource availability (environmental energy) hypothesis, the ITS region is evolving at a faster rate in tropical than nontropical regions. Most biogeographic regions exhibited substantial phylogenetic clustering suggesting a strong impact of dispersal limitation over a large geographic scale. In northern Holarctic regions, however, phylogenetic distances and phylogenetic grouping of isolates indicate multiple recent dispersal events.

Place, publisher, year, edition, pages
2014. Vol. 23, no 16, 4168-4183 p.
Keyword [en]
ancestral state reconstruction, Basidiomycota, biogeographic regions, ectomycorrhizal symbiosis, molecular clock, phylogenetic conservatism, rate of evolution
National Category
Biochemistry and Molecular Biology Evolutionary Biology
URN: urn:nbn:se:uu:diva-232069DOI: 10.1111/mec.12849ISI: 000340419800018OAI: oai:DiVA.org:uu-232069DiVA: diva2:746969
Available from: 2014-09-15 Created: 2014-09-12 Last updated: 2015-11-11Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full text

Search in DiVA

By author/editor
Bahram, MohammadRyberg, Martin
By organisation
Systematic Biology
In the same journal
Molecular Ecology
Biochemistry and Molecular BiologyEvolutionary Biology

Search outside of DiVA

GoogleGoogle Scholar
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Altmetric score

Total: 322 hits
ReferencesLink to record
Permanent link

Direct link