Evolutionary differentiation of the sister cyanobacterial genera Cyanospira Florenzano, Sili, Pelosi et Vincenzini and Anabaenopsis (Woloszyńska) Miller in response to extreme life conditions.

Phylogenomic analysis of Anabaenopsis elenkinii (Nostocales, Cyanobacteria)

“…strains clearly separated from all the other strains of the family Aphanizomenonaceae of the order Nostocales (). This major clade was subdivided into two subclusters (I and II), both supported by Bayesian inference, corroborating a previous study [51]. The A. elenkinii CCIBt3563 falls into the subcluster I formed only by strains of Anabaenopsis elenkinii and its closest related strain with pairwise identities of 99.73 and 99.79 % was the A. elenkinii CCIBt3461 (Table S1, available in the online version of this article).…”

“…These strains clustered with well-supported bootstrap values (100 % Bayesian posterior probability, 96 % ML and 97 % NJ) within the Cyanospira subcluster III in our study and a previous one [51]. Cyanospira is an Anabaenopsis sister taxa according to 16S rRNA gene phylogenetic analysis and its members are also found inhabiting hyperhalkaline environments [51]. The 16S rRNA gene sequence of the A. circularis NIES-21 (accession numbers AF247595 and AP018174), the only Anabaenopsis strain with genome sequenced, fitted within the Desikacharya clade with strong support (100 %) (Fig.…”

“…In general, the pattern of sequence clustering observed was consistent with previous phylogenetic trees of Anabaenopsis spp. [8, 13, 51]. The exception was the positioning of Anabaenopsis abijatae strains in the Anabaenopsis spp.…”

Haloleptolyngbya alcalis gen. et sp. nov., a new filamentous cyanobacterium from the soda lake Nakuru, Kenya

“…Over long periods in the last decade, Arthrospira populations in Nakuru were associated with heterocyst-forming nostocalean cyanobacteria of the genus Anabaenopsis (A. abijatae, and A. arnoldii) (Ballot et al, 2004a(Ballot et al, , 2008Oduor & Schagerl, 2007;Schagerl & Oduor, 2008;Kotut & Krienitz, 2011), and Cyanospira (Sili et al, 2011). In periods of low water level, mats of cyanobacteria with tiny filaments (*2 lm in diameter) of uncertain taxonomic designation have been observed to rise from the sediments and establish on the water surface (Kotut, unpubl.…”

Κυανοβακτήρια Σε Περιβάλλοντα Θερμοπηγών

“…To NapMSlm13 είναι το μοναδικό ετεροκυτικό κυανοβακτήριο που συμπεριλαμβάνουμε στο δέντρο, το οποίο έχει καταταχθεί με βάση τη μορφολογία στο γένος Nostoc. Με βάση το BLAST, φαίνεται ότι το πιο συγγενικό του στο 16S rDNA είναι το Cyanospira rippkae CR86F5 (Sili et al, 2011) με ομοιότητα 97%, ενώ με βάση το ITS το πιο συγγενικό στο BLAST είναι Nostoc sp. C21 με 96% ομοιότητα.…”