Article (Scientific journals)
Cyanobacteria evolution: Insight from the fossil record
Demoulin, Catherine; Lara, Yannick; Cornet, Luc et al.
2019In Free Radical Biology and Medicine, 140, p. 206-223
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Keywords :
Biosignatures; Cyanobacteria; Evolution; Microfossils; Molecular clocks; Precambrian
Abstract :
[en] Cyanobacteria played an important role in the evolution of Early Earth and the biosphere. They are responsible for the oxygenation of the atmosphere and oceans since the Great Oxidation Event around 2.4 Ga, debatably earlier. They are also major primary producers in past and present oceans, and the ancestors of the chloroplast. Nevertheless, the identification of cyanobacteria in the early fossil record remains ambiguous because the morphological criteria commonly used are not always reliable for microfossil interpretation. Recently, new biosignatures specific to cyanobacteria were proposed. Here, we review the classic and new cyanobacterial biosignatures. We also assess the reliability of the previously described cyanobacteria fossil record and the challenges of molecular approaches on modern cyanobacteria. Finally, we suggest possible new calibration points for molecular clocks, and strategies to improve our understanding of the timing and pattern of the evolution of cyanobacteria and oxygenic photosynthesis. © 2019 The Authors
Research center :
Astrobiology - ULiège
Disciplines :
Physical, chemical, mathematical & earth Sciences: Multidisciplinary, general & others
Microbiology
Environmental sciences & ecology
Author, co-author :
Demoulin, Catherine  ;  Université de Liège - ULiège > Département de géologie > Early Life Traces & Evolution-Astrobiology
Lara, Yannick   ;  Université de Liège - ULiège > Département de géologie > Early Life Traces & Evolution-Astrobiology
Cornet, Luc ;  Université de Liège - ULiège > Agronomie, Bio-ingénierie et Chimie (AgroBioChem) > Ingénierie des productions végétales et valorisation
François, Camille ;  Université de Liège - ULiège > Département de géologie > Early Life Traces & Evolution-Astrobiology
Baurain, Denis  ;  Université de Liège - ULiège > Département des sciences de la vie > Phylogénomique des eucaryotes
Wilmotte, Annick  ;  Université de Liège - ULiège > Département des sciences de la vie > Physiologie et génétique bactériennes
Javaux, Emmanuelle  ;  Université de Liège - ULiège > Département de géologie > Early Life Traces & Evolution-Astrobiology
 These authors have contributed equally to this work.
Language :
English
Title :
Cyanobacteria evolution: Insight from the fossil record
Alternative titles :
[fr] L'évolution des cyanobactéries: informations de l'enregistrement fossile
Publication date :
2019
Journal title :
Free Radical Biology and Medicine
ISSN :
0891-5849
eISSN :
1873-4596
Publisher :
Elsevier
Volume :
140
Pages :
206-223
Peer reviewed :
Peer Reviewed verified by ORBi
European Projects :
FP7 - 308074 - ELITE - Early Life Traces, Evolution, and Implications for Astrobiology
Funders :
BELSPO - Belgian Science Policy Office [BE]
CER - Conseil Européen de la Recherche [BE]
F.R.S.-FNRS - Fonds de la Recherche Scientifique [BE]
ULiège - Université de Liège [BE]
EOS
CE - Commission Européenne [BE]
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