[en] For more than a decade, the taxonomy of Phormidiaceae has been problematic, since morphologically similar organisms represent phylogenetically distinct entities. Based on 16S rRNA analyses, the polyphyletic genus Phormidium and other gas-vacuolated oscillatorioids appear scattered throughout the cyanobacterial tree of life. Recently, several studies have focused on understanding the oscillatorioid taxa at the generic level. At the specific level, there are few studies characterizing cyanobacterial strains using combined datasets (morphology, ultrastructure, and molecular multi-locus analyses). Using a multi-facet approach, we propose a new, well-defined genus, Cephalothrix gen. nov., by analyzing seven filamentous strains morphologically 'intermediate' between gas-vacuolated taxa and Phormidium. Furthermore, we characterize two new species: Cephalothrix komarekiana (CCIBt 3277, CCIBt 3279, CCIBt 3523, CCALA 155, SAG 75.79, and UTEX 1580) and Cephalothrix lacustris (CCIBt 3261). The generic name and specific epithets were proposed under the provisions of the International Code of Nomenclature for algae, fungi, and plants.
Research center :
CIP - Centre d'Ingénierie des Protéines - ULiège
Disciplines :
Environmental sciences & ecology Microbiology
Author, co-author :
Malone, Camila da Silva Francieli
Rigonato, Janaina
Laughinghouse, Haywood Dail
Schmith, Eder Carlos
Bouzon, Zenilda Laurita
Wilmotte, Annick ; Université de Liège > Département des sciences de la vie > Physiologie et génétique bactériennes
Fiore, Marli Fatima
Sant'Anna, Celia Leite
Language :
English
Title :
Cephalothrix gen. nov. (Cyanobacteria): towards an intraspecific phylogenetic evaluation by multilocus analyses
Alternative titles :
[fr] Cephalothrix gen. nov. (Cyanobactérie): une évaluation phylogénétique intraspécifique par analyse multilocus
Publication date :
2015
Journal title :
International Journal of Systematic and Evolutionary Microbiology
ISSN :
1466-5026
eISSN :
1466-5034
Publisher :
Society for General Microbiology, Reading, United Kingdom
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