ヒメツチグリ目の分子系統とSclerogasterの系統的位置

概要

論文の詳細を見る
Molecular phylogenetic analyses for the order Geastrales (Agaricomycetes, Basidiomycota, Fungi) were conducted based on a two gene dataset with increased taxon sampling of the genus Sclerogaster. The placement of Sclerogaster in Geastrales, and the monophyly of the genus were strongly supported in all analyses. Sclerogaster forms one of the distinct lineages within Geastrales, but its exact position within Geastrales remains unresolved. Bayesian analyses support the sister relationship between Geastraceae and Sclerogaster without significant posterior probabilities. Most analyses under parsimony criterion supported the sister relationship between Sclerogaster and Sclenella, but lack significant bootstrap values. The topology of Geastrales indicated that the truffle-like form may be an ancestral morphology of the earthstar fruit body-type. Biogeographical patterns of Sclerogaster indicate that long distance dispersal may be the most important factor, and this may be associated with its saprotrophic habit.
国立科学博物館の論文