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Evolution of cyanobacterial symbioses in Ascomycota.

Högnabba, Filip ; Stenroos, Soili and Thell, Arne LU (2009) 99. p.163-184
Abstract
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... (More)
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. (Less)
Please use this url to cite or link to this publication:
author
; and
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
keywords
symbiosis, phylogeny, Peltigerales, nuclear rDNA, Lichinomycetes, lichens, evolution, direct optimization, Ascomycota, cyanobacteria
host publication
Biodiversity and Ecology of lichens. Liber Amicorum Harrie Sipman. Bibliotheca Lichenologica
editor
Aptroot, Andreas ; Seaward, Mark R. D. and Sparrius, Laurens B.
volume
99
pages
163 - 184
publisher
J. Cramer in der Gebrüder Borntraeger Verlagsbuchhandlung
ISSN
1436-1698
ISBN
978-3-443-58078-0
language
English
LU publication?
yes
id
203011a9-8830-4150-9e46-fc5c5533c445 (old id 1398096)
date added to LUP
2016-04-01 14:00:57
date last changed
2018-11-21 20:22:14
@inbook{203011a9-8830-4150-9e46-fc5c5533c445,
  abstract     = {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.},
  author       = {Högnabba, Filip and Stenroos, Soili and Thell, Arne},
  booktitle    = {Biodiversity and Ecology of lichens. Liber Amicorum Harrie Sipman. Bibliotheca Lichenologica},
  editor       = {Aptroot, Andreas and Seaward, Mark R. D. and Sparrius, Laurens B.},
  isbn         = {978-3-443-58078-0},
  issn         = {1436-1698},
  language     = {eng},
  pages        = {163--184},
  publisher    = {J. Cramer in der Gebrüder Borntraeger Verlagsbuchhandlung},
  title        = {Evolution of cyanobacterial symbioses in Ascomycota.},
  volume       = {99},
  year         = {2009},
}