Plata, Eimy Rivas and Hernandez M, Jesus E. and Luecking, Robert and Staiger, Bettina and Kalb, Klaus and Caceres, Mancela E. S. (2011) Graphis is two genera: A remarkable case of parallel evolution in lichenized Ascomycota. TAXON, 60 (1). pp. 99-107. ISSN 0040-0262,
Full text not available from this repository. (Request a copy)Abstract
Molecular phylogenetic analysis of the mitochondrial small subunit and nuclear large subunit ribosomal DNA revealed that the lichen genus Graphis sensu Staiger represents two separate lineages. Graphis s.str. comprises the species of the G. scripta and G. subserpentina groups ('Eugraphis'), as well as the G. striatula group sensu Lucking. For the segregate genus, the name Allographa Chevall. is available, and this genus includes the G. acharii, G. dussii, G. marginata, C. nuda, and G. symplecta groups. The separation of both lineages is supported by principal component analysis species ordination based on phenotype characters, although the G. dussii and G. subserpentina groups appear phenotypically intermediate. Species formerly placed in Hemithecium subg. Hemithecium sensu Staiger were shown to belong to at least four lineages, one nested within Graphis (H. implication), one within Allographa (H. chlorocarpum), one sister to Allographa (H. rufopallidum), and one nested within the Phaeographis clade (H. plicosum). Allographa is genetically close to the bulk of lirellate Graphidaceae (Diorygma, Glyphis, Pallidogramme, Phaeographis, Platygramme, Platythecium, Sarcographa, Thalloloma,Thecaria), whereas Graphis s.str. exhibits unique genetic apomorphies and takes a more isolated position.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | MULTIPLE SEQUENCE ALIGNMENT; RIBOSOMAL DNA; GENUS GRAPHIS; OSTROPALES GRAPHIDACEAE; PHYLOGENY; THELOTREMATACEAE; IDENTIFICATION; AMPLIFICATION; INFERENCE; TAXONOMY; Allographa; Graphis; Hemithecium; phenotype phylogeny; principal component analysis |
| Subjects: | 500 Science > 580 Botanical sciences |
| Divisions: | Biology, Preclinical Medicine > Institut für Pflanzenwissenschaften |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 29 Jun 2020 05:20 |
| Last Modified: | 29 Jun 2020 05:20 |
| URI: | https://pred.uni-regensburg.de/id/eprint/21373 |
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