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13 results for “Leptographium”
Data from: Population structure of mountain pine beetle symbiont Leptographium longiclavatum and the implication on the multipartite beetle-fungi relationships
Over 18 million ha of forests have been destroyed in the past decade in Canada by the mountain pine beetle (MPB) and its fungal symbionts. Understanding their population dynamics is critical to improving modeling of beetle epidemics and providing potential clues to predict population expansion. Leptographium longiclavatum and Grosmannia clavigera are fungal symbionts of MPB that aid the beetle to colonize and kill their pine hosts. We investigated the genetic structure and demographic expansion of L. longiclavatum in populations established within the historic distribution range and in the newly colonized regions. We identified three genetic clusters/populations that coincide with independent geographic locations. The genetic profiles of the recently established populations in northern British Columbia (BC) and Alberta suggest that they originated from central and southern BC. Approximate Bayesian Computation supports the scenario that this recent expansion represents an admixture of individuals originating from BC and the Rocky Mountains. Highly significant correlations were found among genetic distance matrices of L. longiclavatum, G. clavigera, and MPB. This highlights the concordance of demographic processes in these interacting organisms sharing a highly specialized niche and supports the hypothesis of long-term multipartite beetle-fungus co-evolutionary history and mutualistic relationships.
Data from: Population structure of mountain pine beetle symbiont Leptographium longiclavatum and the implication on the multipartite beetle-fungi relationships
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Figure 8 from: Yin M, Wingfield MJ, Zhou X, Linnakoski R, de Beer ZW (2019) Taxonomy and phylogeny of the Leptographium olivaceum complex (Ophiostomatales, Ascomycota), including descriptions of six new species from China and Europe. MycoKeys 60: 93-123. https://doi.org/10.3897/mycokeys.60.39069
Figure 8 Leptographium xiningense sp. nov. (CMW 38891) a fourteen-days old culture on OA with black background b synnematous asexual state on wood tissue on WAc conidiophore d conidiogenous apparatus e conidiogenous cells f conidia. Scale bars: 300 μm (b), 50 μm (c), 20 μm (d), 10 μm (e), 5 μm (f).
Supplementary material 2 from: Yin M, Wingfield MJ, Zhou X, Linnakoski R, de Beer ZW (2019) Taxonomy and phylogeny of the Leptographium olivaceum complex (Ophiostomatales, Ascomycota), including descriptions of six new species from China and Europe. MycoKeys 60: 93-123. https://doi.org/10.3897/mycokeys.60.39069
: Data type: phylogenetic data.
Figure 6 from: Yin M, Wingfield MJ, Zhou X, Linnakoski R, de Beer ZW (2019) Taxonomy and phylogeny of the Leptographium olivaceum complex (Ophiostomatales, Ascomycota), including descriptions of six new species from China and Europe. MycoKeys 60: 93-123. https://doi.org/10.3897/mycokeys.60.39069
Figure 6 Leptographium rhizoidum sp. nov. (CMW 22809). a fourteen-days old culture on OA with black background b synnematous asexual state on wood tissue on WAc conidiophore d conidiogenous apparatus e conidiogenous cells f conidia. Scale bars: 200 μm (b), 50 μm (c), 20 μm (d), 10 μm (e), 5 μm (f).
Supplementary material 1 from: Yin M, Wingfield MJ, Zhou X, Linnakoski R, de Beer ZW (2019) Taxonomy and phylogeny of the Leptographium olivaceum complex (Ophiostomatales, Ascomycota), including descriptions of six new species from China and Europe. MycoKeys 60: 93-123. https://doi.org/10.3897/mycokeys.60.39069
: Data type: phylogenetic data.
Figure 7 from: Yin M, Wingfield MJ, Zhou X, Linnakoski R, de Beer ZW (2019) Taxonomy and phylogeny of the Leptographium olivaceum complex (Ophiostomatales, Ascomycota), including descriptions of six new species from China and Europe. MycoKeys 60: 93-123. https://doi.org/10.3897/mycokeys.60.39069
Figure 7 Leptographium sylvestris sp. nov. (CMW 34140) a fourteen-days old culture on OA with black background b synnematous asexual state on wood tissue on WAc conidiophore d conidiogenous apparatus e conidiogenous cells f conidia g–h the sexual state on wood tissue on WAi ascoma j ostiolar hyphae k ascomatal base l ascospores. Scale bars: 100 μm (b), 50 μm (c), 25 μm (d), 10 μm (e), 5 μm (f), 100 μm (g), 100 μm (h), 50 μm (i), 25 μm (j), 20 μm (k), 5 μm (l).
Figure 4 from: Yin M, Wingfield MJ, Zhou X, Linnakoski R, de Beer ZW (2019) Taxonomy and phylogeny of the Leptographium olivaceum complex (Ophiostomatales, Ascomycota), including descriptions of six new species from China and Europe. MycoKeys 60: 93-123. https://doi.org/10.3897/mycokeys.60.39069
Figure 4 Leptographium conplurium sp. nov. (CMW 23315). a fourteen-days old culture on OA with black background; b. synnematous asexual state on wood tissue on WAc conidiophore d conidiogenous apparatus e conidiogenous cells f conidia. Scale bars: 200 μm (b), 50 μm (c), 20 μm (d), 10 μm (e), 5 μm (f).
Figure 3 from: Yin M, Wingfield MJ, Zhou X, Linnakoski R, de Beer ZW (2019) Taxonomy and phylogeny of the Leptographium olivaceum complex (Ophiostomatales, Ascomycota), including descriptions of six new species from China and Europe. MycoKeys 60: 93-123. https://doi.org/10.3897/mycokeys.60.39069
Figure 3 Leptographium breviuscapum sp. nov. (CMW 38888) a fourteen-days old culture on OA with black background b synnematous asexual state on wood tissue on WAc–d conidiophore e conidiogenous cells f conidia. Scale bars: 100 μm (b), 25 μm (c), 25 μm (d), 10 μm (e), 5 μm (f).
Figure 2 from: Yin M, Wingfield MJ, Zhou X, Linnakoski R, de Beer ZW (2019) Taxonomy and phylogeny of the Leptographium olivaceum complex (Ophiostomatales, Ascomycota), including descriptions of six new species from China and Europe. MycoKeys 60: 93-123. https://doi.org/10.3897/mycokeys.60.39069
Figure 2 ML trees of the L. olivaceum complex generated from DNA sequences of four protein-coding gene regions. Bold branches indicate posterior probabilities values ≥0.95. Bootstrap values ≥75% are recorded at nodes as ML/MP. * Bootstrap values <75%. Scale bar represents nucleotide substitutions.
Figure 1 from: Yin M, Wingfield MJ, Zhou X, Linnakoski R, de Beer ZW (2019) Taxonomy and phylogeny of the Leptographium olivaceum complex (Ophiostomatales, Ascomycota), including descriptions of six new species from China and Europe. MycoKeys 60: 93-123. https://doi.org/10.3897/mycokeys.60.39069
Figure 1 Left side: ML tree of the genus Leptographium generated from the ITS2-LSU DNA sequence data. Sequences generated from this study are printed in bold type. Bold branches indicate posterior probabilities values ≥0.95. Bootstrap values ≥75% are recorded at nodes as ML/MP. * Bootstrap values <75%. Scale bar represents 5 nucleotide substitutions per 100 nucleotides. Right side: ML trees of the L. olivaceum complex generated from the DNA sequences of combined four protein-coding gene regions, including ACT, CAL, TEF-1α, and TUB. Bold branches indicate posterior probabilities values ≥0.95. Bootstrap values ≥75% are recorded at nodes as ML/MP. * Bootstrap values <75%. Scale bar represents 5 nucleotide substitutions per 100 nucleotides.
Figure 5 from: Yin M, Wingfield MJ, Zhou X, Linnakoski R, de Beer ZW (2019) Taxonomy and phylogeny of the Leptographium olivaceum complex (Ophiostomatales, Ascomycota), including descriptions of six new species from China and Europe. MycoKeys 60: 93-123. https://doi.org/10.3897/mycokeys.60.39069
Figure 5 Leptographium pseudoalbum sp. nov. (CBS 276.54) a fourteen-days old culture on OA with black background; b. synnematous asexual state on wood tissue on WAc–d conidiophore e conidiogenous cells f conidia. Scale bars: 200 μm (b), 25 μm (c), 25 μm (d), 10 μm (e), 5 μm (f).
Interior spruce_Bark_Leptographium abietinum_inoculation
GEO Series GSE23678. Picea; Picea engelmannii x Picea glauca. 36 samples. Type: Expression profiling by array.
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