Evolution of cyanobacterial symbioses in Ascomycota.
Författare
Redaktör
- Andreas Aptroot
- Mark R. D. Seaward
- Laurens B. Sparrius
Summary, in English
Two fifths of the species in Ascomycota are lichen-forming, of which 10% and 3-4% have cyanobacteria as the primary and secondary photobionts respectively. To study the evolution of cyanobacterial symbioses, the phylogenetic relationships within the Ascomycota have been reconstructed. Phylogenetic analyses were made using direct optimization of nuclear SSU and LSU rDNA sequences under the parsimony optimality criterion. Our results indicate repeated evolution of the mutualistic assemblages between fungi and cyanobacteria. The stability of the cyanobacterial symbioses and the effects of photobiont alteration on the evolution of ascomycetes are discussed, as is the taxonomy of some cyanobacterial lichen taxa, and some future perspectives on the evolution of these ecologically important assemblages.
Avdelning/ar
Publiceringsår
2009
Språk
Engelska
Sidor
163-184
Publikation/Tidskrift/Serie
Biodiversity and Ecology of lichens. Liber Amicorum Harrie Sipman. Bibliotheca Lichenologica
Volym
99
Dokumenttyp
Del av eller Kapitel i bok
Förlag
J. Cramer in der Gebrüder Borntraeger Verlagsbuchhandlung
Ämne
- Botany
Nyckelord
- symbiosis
- phylogeny
- Peltigerales
- nuclear rDNA
- Lichinomycetes
- lichens
- evolution
- direct optimization
- Ascomycota
- cyanobacteria
Status
Published
ISBN/ISSN/Övrigt
- ISSN: 1436-1698
- ISBN: 978-3-443-58078-0