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Frequent Long-Distance Plant Colonization in the Changing Arctic
TLDR
It may be appropriate to assume unlimited dispersal when predicting long-term range shifts in the Arctic by analyzing DNA fingerprinting of nine plant species, showing that long-distance colonization of a remote arctic archipelago, Svalbard, has occurred repeatedly and from several source regions.
The Plant Cell Wall–Decomposing Machinery Underlies the Functional Diversity of Forest Fungi
TLDR
Fungal nutritional mode diversification suggests that the boreal forest biome originated via genetic coevolution of above- and below-ground biota through convergent evolution and divergence among fungal decomposers.
Refugia, differentiation and postglacial migration in arctic‐alpine Eurasia, exemplified by the mountain avens (Dryas octopetala L.)
TLDR
The mountain avens, Dryas octopetala sensu lato, is a long‐lived, wind‐dispersed, diploid shrub forming one of the most important components of Eurasian tundras and heaths in terms of biomass.
Evolutionary history of Serpulaceae (Basidiomycota): molecular phylogeny, historical biogeography and evidence for a single transition of nutritional mode
TLDR
This study supports the growing understanding that the same geographical barriers that limit plant- and animal dispersal also limit the spread of fungi, as a combination of vicariance and long distance dispersal events are needed to explain the present patterns of distribution in Serpulaceae.
Transposable Element Dynamics among Asymbiotic and Ectomycorrhizal Amanita Fungi
TLDR
The genomes of related asymbiotic and ectomycorrhizal Amanita fungi are sequenced to provide further evidence for a link between symbiotic associations among plants and fungi, and increased TE activity, while highlighting the importance individual species’ natural histories may have in shaping genome architecture.
A synopsis of the saddle fungi (Helvella: Ascomycota) in Europe – species delimitation, taxonomy and typification
TLDR
This study uses morphology and phylogenetic evidence from four loci – heat shock protein 90 (hsp), translation elongation factor alpha (tef), RNA polymerase II (rpb2) and the nuclear large subunit ribosomal DNA (LSU) – to assess species boundaries in an expanded sample of Helvella specimens from Europe.
Genetic structuring in three closely related circumpolar plant species: AFLP versus microsatellite markers and high-arctic versus arctic–alpine distributions
TLDR
The high-arctic D. subcapitata had less phylogeographic structure, less diversity and fewer private alleles than the other two species, suggesting that long-distance dispersal may occur more frequently in the high arctic, that hardy plants may have higher probability for establishment after dispersal under high-ARctic conditions and that high-Arctic species may have experienced a bottleneck during the present interglacial.
Genetics of Intrinsic Postzygotic Isolation in a Circumpolar Plant Species, Draba Nivalis (Brassicaceae)
TLDR
The results imply that multiple genetic mechanisms underlie the rapid evolution of reproductive barriers in Draba, including nuclear–nuclear interactions, and a pattern of inheritance suggestive of cytonuclear incompatibilities.
How many DNA markers are needed to reveal cryptic fungal species?
TLDR
It is concluded that the analyses of a few but informative independent DNA loci, such as tub, hsp, rpb2 and tef in addition to the standard DNA barcode ITS, may give a good indication about the existence of cryptic species in fungi.
Molecular Characterization of Sexual Diversity in a Population of Serpula lacrymans, a Tetrapolar Basidiomycete
TLDR
It is argued that the low mating type diversity in the European S. lacrymans population restrains the dispersal and establishment of the fungus.
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