ArticlePloS one2014
Do photobiont switch and cephalodia emancipation act as evolutionary drivers in the lichen symbiosis? A case study in the Pannariaceae (Peltigerales).
Article in PloS one, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.
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11 citing papers in PubMed.
- Factors shaping the lichen photobiome and mycobiome in a tropical lichen community.FEMS microbiology ecology · 2026Article
- Global phylogeny of the familyIMA fungus · 2025Article
- A shift in substrate requirement might cause speciation of the lichenized fungi, Varicellaria hemisphaerica and V. lactea (Pertusariales, Ascomycota).Scientific reports · 2024Article
- Article
- The Tripartite LichenMicroorganisms · 2023Article
- High species richness in the lichen genusPersoonia · 2023Article
- The macroevolutionary dynamics of symbiotic and phenotypic diversification in lichens.Proceedings of the National Academy of Sciences of the United States of America · 2020Article
- Photobiont switching causes changes in the reproduction strategy and phenotypic dimorphism in the Arthoniomycetes.Scientific reports · 2018Article
- Contrasting Symbiotic Patterns in Two Closely Related Lineages of Trimembered Lichens of the GenusFrontiers in microbiology · 2018Article
- Lichen acclimation to changing environments: Photobiont switching vs. climate-specific uniqueness inEcology and evolution · 2017Article
- Evolution of the tRNALeu (UAA) Intron and Congruence of Genetic Markers in Lichen-Symbiotic Nostoc.PloS one · 2015Article
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Abstract
Lichen symbioses in the Pannariaceae associate an ascomycete and either cyanobacteria alone (usually Nostoc; bipartite thalli) or green algae and cyanobacteria (cyanobacteria being located in dedicated structures called cephalodia; tripartite thalli) as photosynthetic partners (photobionts). In bipartite thalli, cyanobacteria can either be restricted to a well-delimited layer within the thallus ('pannarioid' thalli) or spread over the thallus that becomes gelatinous when wet ('collematoid' thalli). We studied the collematoid genera Kroswia and Physma and an undescribed tripartite species along with representatives of the pannarioid genera Fuscopannaria, Pannaria and Parmeliella. Molecular inferences from 4 loci for the fungus and 1 locus for the photobiont and statistical analyses within a phylogenetic framework support the following: (a) several switches from pannarioid to collematoid thalli occured and are correlated with photobiont switches; the collematoid genus Kroswia is nested within the pannarioid genus Fuscopannaria and the collematoid genus Physma is sister to the pannarioid Parmeliella mariana group; (b) Nostoc associated with collematoid thalli in the Pannariaceae are related to that of the Collemataceae (which contains only collematoid thalli), and never associated with pannarioid thalli; Nostoc associated with pannarioid thalli also associate in other families with similar morphology; (c) ancestors of several lineages in the Pannariaceae developed tripartite thalli, bipartite thalli probably resulting from cephalodia emancipation from tripartite thalli which eventually evolved and diverged, as suggested by the same Nostoc present in the collematoid genus Physma and in the cephalodia of a closely related tripartite species; Photobiont switches and cephalodia emancipation followed by divergence are thus suspected to act as evolutionary drivers in the family Pannariaceae.
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