| phylogenetic species delimitation in ectomycorrhizal fungi and implications for barcoding: the case of the tricholoma scalpturatum complex (basidiomycota). | population studies have revealed that the fungal ectomycorrhizal morphospecies tricholoma scalpturatum consists of at least two genetically distinct groups that occur sympatrically in several geographical areas. this discovery prompted us to examine species boundaries and relationships between members formerly assigned to t. scalpturatum and allied taxa using phylogenetic analyses. sequence data were obtained from three nuclear dna regions [internal transcribed spacer (its), gpd and tef], from 1 ... | 2010 | 21044190 |
| ectomycorrhizal communities in a productive tuber aestivum vittad. orchard: composition, host influence and species replacement. | truffles (tuber spp.) and other ectomycorrhizal species form species-rich assemblages in the wild as well as in cultivated ecosystems. we aimed to investigate the ectomycorrhizal communities of hazels and hornbeams that are growing in a 24-year-old tuber aestivum orchard. we demonstrated that the ectomycorrhizal communities included numerous species and were phylogenetically diverse. twenty-nine ectomycorrhizal taxa were identified. tuber aestivum ectomycorrhizae were abundant (9.3%), only those ... | 2011 | 21223332 |
| high sexual reproduction and limited contemporary dispersal in the ectomycorrhizal fungus tricholoma scalpturatum: new insights from population genetics and spatial autocorrelation analysis. | dispersal and establishment are fundamental processes influencing the response of species to environmental changes, and the long-term persistence of populations. a previous study on the symbiotic ectomycorrhizal fungus tricholoma scalpturatum revealed strong genetic differentiations between populations in western europe, suggesting restricted dispersal for this wind-dispersed cosmopolitan fungus. two distinct genetic groups (genetic groups 1 and 2), co-occurring in some locations, were also iden ... | 2008 | 18986492 |
| population evidence of cryptic species and geographical structure in the cosmopolitan ectomycorrhizal fungus, tricholoma scalpturatum. | tricholoma scalpturatum is an ectomycorrhizal fungus that forms symbioses with roots of diverse trees and shrubs. it is commonly encountered in a wide range of habitats, across temperate ecosystems. a previous study has revealed a high genetic diversity at a local scale, and ruderal abilities. to examine genetic structure at a large geographical scale, a total of 164 basidiocarps were collected from 30 populations located in western europe, from spain to scandinavia. these samples were analyzed ... | 2008 | 18305983 |
| population dynamics of the ectomycorrhizal fungal species tricholoma populinum and tricholoma scalpturatum associated with black poplar under differing environmental conditions. | fungi combine sexual reproduction and clonal propagation. the balance between these two reproductive modes affects establishment dynamics, and ultimately the evolutionary potential of populations. the pattern of colonization was studied in two species of ectomycorrhizal fungi: tricholoma populinum and tricholoma scalpturatum. the former is considered to be a host specialist whereas t. scalpturatum is a generalist taxon. fruit bodies of both basidiomycete species were mapped and collected over se ... | 2006 | 16623736 |