A constrained SSU-rRNA phylogeny reveals the unsequenced diversity of photosynthetic Cyanobacteria (Oxyphotobacteria)

Cyanobacteria are an ancient phylum of prokaryotes that contain the class Oxyphotobacteria. This group has been extensively studied by phylogenomics notably because it is widely accepted that Cyanobacteria were responsible for the spread of photosynthesis to the eukaryotic domain. The aim of this st...

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Bibliographic Details
Published in:BMC research notes 2018-07, Vol.11 (1), p.435-435, Article 435
Main Authors: Cornet, Luc, Wilmotte, Annick, Javaux, Emmanuelle J, Baurain, Denis
Format: Article
Language:English
Subjects:
Base Sequence
Biochemistry, biophysics & molecular biology
Biochimie, biophysique & biologie moléculaire
Bioinformatics
Cyanobacteria
Cyanobacteria - genetics
Datasets
Deoxyribonucleic acid
Diversity
DNA
Evolution
Genes
Genetic aspects
Genetics & genetic processes
Genomes
Genomics
Génétique & processus génétiques
Life sciences
Microbiologie
Microbiology
Morphology
Photosynthesis
Photosynthesis - genetics
Phylogenetics
Phylogeny
Physiological aspects
Prokaryotes
Research Note
RNA, Ribosomal - analysis
rRNA
Sciences du vivant
Sequenced genome fraction
SSU rRNA (16S)
Taxonomy
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Summary:Cyanobacteria are an ancient phylum of prokaryotes that contain the class Oxyphotobacteria. This group has been extensively studied by phylogenomics notably because it is widely accepted that Cyanobacteria were responsible for the spread of photosynthesis to the eukaryotic domain. The aim of this study was to evaluate the fraction of the oxyphotobacterial diversity for which sequenced genomes are available for genomic studies. For this, we built a phylogenomic-constrained SSU rRNA (16S) tree to pinpoint unexploited clusters of Oxyphotobacteria that should be targeted for future genome sequencing, so as to improve our understanding of Oxyphotobacteria evolution. We show that only a little fraction of the oxyphotobacterial diversity has been sequenced so far. Indeed 31 rRNA clusters of the 60 composing the photosynthetic Cyanobacteria have a fraction of sequenced genomes
ISSN:1756-0500
1756-0500
DOI:10.1186/s13104-018-3543-y