β-tubulin, ITS and group I intron sequences challenge the species pair concept in Physcia aipolia and P. caesia

By L. Myllys, Katileena Lohtander, A. Tehler. 2001

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Biodiversity of lichens, including a world-wide analysis of checklist data based on Takhtajan’s floristic regions (2007, methodology): “The species pair concept in Physcia aipolia and P. caesia was challenged using ß-tubulin, ITS and group I intron sequences (Myllys et al. 2001), but the two morphologically and ecologically separated units could not be separated suYciently with this selection of genes and samples, but are separable…”
Goodbye morphology? A paradigm shift in the delimitation of species in lichenized fungi (2011, background): “…molecular phylogenetic reconstructions often recover specimens with different reproductive modes together within a single monophyletic group (Lohtander et al. 1998a,b; Myllys et al. 1999, 2001; Articus et al. 2002; Molina et al. 2002; Cubero et al. 2004; Ott et al. 2004; Buschbom and Mueller 2006).”
Species in lichen-forming fungi: balancing between conceptual and practical considerations, and between phenotype and phylogenomics (2021, background): “caesia (sorediate) is mostly found on rock, including human-made substrata (Myllys et al. 2001).”