Phylogenetic position of Geitleribactron purpureum (Synechococcales, Cyanobacteria / Cyanophyceae) and its implications for the taxonomy of Chamaesiphonaceae and Leptolyngbyaceae

0459638 - BÚ 2017 RIV CZ eng J - Journal Article
Mareš, Jan - Cantonati, M.
Phylogenetic position of Geitleribactron purpureum (Synechococcales, Cyanobacteria / Cyanophyceae) and its implications for the taxonomy of Chamaesiphonaceae and Leptolyngbyaceae.
Fottea. Roč. 16, č. 1 (2016), s. 104-111. ISSN 1802-5439. E-ISSN 1805-4927
R&D Projects: GA ČR GA15-00113S
Institutional support: RVO:67985939
Keywords : Geitleribactron * coccoid cyanobacteria * phylogeny
Subject RIV: EF - Botanics
Impact factor: 1.350, year: 2016

In the current study, we examined a sample of a heteropolar unicellular cyanobacterium, Geitleribactron purpureum, from the holotype material (deep epilithon of Lake Tovel, Western Dolomites, Italy). We isolated and purified single colonies of G. purpureum, and subjected them to direct PCR and 16S rRNA gene sequencing. We obtained a congruent set of sequences that formed a unique, isolated cyanobacterial lineage, showing phylogenetic clustering among simple filamentous genera of the family Leptolyngbyaceae. We provide evidence for deep polyphyly in Chamaesiphonaceae, and suggest that Geitleribactron should be re–classified in the Leptolyngbyaceae.
Permanent Link: http://hdl.handle.net/11104/0259839