Article (Scientific journals)
An early origin of plastids within the cyanobacterial divergence is suggested by evolutionary trees based on complete 16S rRNA sequences
Nelissen, Bart; Van De Peer, Yves; Wilmotte, Annick et al.
1995In Molecular Biology and Evolution, 12, p. 1166-73
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Keywords :
evolution; plastids; cyanobacteria; 16S rRNA
Abstract :
[en] It is generally accepted that the plastids arose from a cyanobacterial ancestor, but the exact phylogenetic relationships between cyanobacteria and plastids are still controversial. Most studies based on partial 16S rRNA sequences suggested a relatively late origin of plastids within the cyanobacterial divergence. In order to clarify the exact relationship and divergence order of cyanobacteria and plastids, we studied their phylogeny on the basis of nearly complete 16S rRNA gene sequences. The data set comprised 15 strains of cyanobacteria from different morphological groups, 1 prochlorophyte, and plastids belonging to 8 species of plants and 12 species of diverse algae. This set included three cyanobacterial sequences determined in this study. This is the most comprehensive set of complete cyanobacterial and plastidial 16S rRNA sequences used so far. Phylogenetic trees were constructed using neighbor joining and maximum parsimony, and the reliability of the tree topologies was tested by different methods. Our results suggest an early origin of plastids within the cyanobacterial divergence, preceded only by the divergence of two cyanobacterial genera, Gloeobacter and Pseudanabaena.
Research center :
Université d'Anvers (UIA)
Disciplines :
Microbiology
Author, co-author :
Nelissen, Bart
Van De Peer, Yves
Wilmotte, Annick  ;  Université de Liège - ULiège > Département des sciences de la vie > Physiologie et génétique bactériennes
De Wachter, Rupert
Language :
English
Title :
An early origin of plastids within the cyanobacterial divergence is suggested by evolutionary trees based on complete 16S rRNA sequences
Alternative titles :
[en] Une divergence basale des plastes dans la radiation des cyanobactéries suggérée par des arbres évolutionnaires basés sur des séquences complètes d'ARN ribosomique 16S
Publication date :
1995
Journal title :
Molecular Biology and Evolution
ISSN :
0737-4038
eISSN :
1537-1719
Publisher :
Oxford University Press, New York, United States - New York
Volume :
12
Pages :
1166-73
Peer reviewed :
Peer Reviewed verified by ORBi
Funders :
F.R.S.-FNRS - Fonds de la Recherche Scientifique [BE]
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