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Ecology and biogeography of the ‘marine Geitlerinema’ cluster and a description of Sodalinema orleanskyi sp. nov., Sodalinema gerasimenkoae sp. nov., Sodalinema stali sp. nov. and Baaleninema simplex gen. et sp. nov. (Oscillatoriales, Cyanobacteria)
FEMS Microbiology Ecology ( IF 3.5 ) Pub Date : 2021-07-11 , DOI: 10.1093/femsec/fiab104
Olga S Samylina 1 , Maria A Sinetova 2 , Elena V Kupriyanova 2 , Alexander Yu Starikov 2 , Marina V Sukhacheva 3 , Marina V Dziuba 3 , Tatiana P Tourova 1
Affiliation  

Filamentous cyanobacteria belonging to the ‘marine Geitlerinema’ cluster are spread worldwide in saline environments and considered to play an important ecological role. However, the taxonomy of this group remains unclear. Here, we analyzed the phylogeny, ecology and biogeography of the ‘marine Geitlerinema’ cluster representatives and revealed two subclusters: 1) an ‘oceanic’ subcluster containing PCC7105 clade and BBD clade with free-living and pathogenic strains distributed in Atlantic, Indian and Pacific Ocean-related localities, and 2) a Sodalinema subcluster containing free-living strains from marine, hypersaline, saline-alkaline and soda lake habitats from the Eurasian and African continents. Polyphasic analysis using genetic and phenotypic criteria demonstrated that these two groups represent separate genera. Representatives of Sodalinema subcluster were phylogenetically attributed to the genus Sodalinema. Our data expand the ecological and geographical distribution of this genus. We emended the description of the genus Sodalinema and proposed three new species differing in phylogenetic, geographic and ecological criteria: Sodalinema orleanskyi sp. nov., Sodalinema gerasimenkoae sp. nov. and Sodalinema stali sp. nov. Additionally, a new genus and species Baaleninema simplex gen. et sp. nov. was discribed within the PCC7105 clade. By this, we put in order the current confusion of the ‘marine Geitlerinema’ group and highlight its ecological diversity.

中文翻译:

“海洋 Geitlerinema” 集群的生态学和生物地理学以及 Sodalinema orleanskyi sp. 的描述。十一月,Sodalinema gerasimenkoae sp。十一月,Sodalinema stali sp。十一月 和 Baaleninema simplex gen。等人。十一月 (振荡目,蓝细菌)

属于“海洋 Geitlerinema”集群的丝状蓝藻在全球范围内的盐碱环境中传播,并被认为具有重要的生态作用。然而,该组的分类仍不清楚。在这里,我们分析了“海洋 Geitlerinema”集群代表的系统发育、生态学和生物地理学,并揭示了两个亚集群:1)一个“海洋”亚集群,包含 PCC7105 进化枝和 BBD 进化枝,其中分布在大西洋、印度和太平洋的自由生活和致病菌株与海洋有关的地区,以及 2) 一个 Sodalinema 亚群,其中包含来自欧亚大陆和非洲大陆的海洋、高盐、盐碱和苏打湖栖息地的自由生活菌株。使用遗传和表型标准的多相分析表明,这两组代表不同的属。Sodalinema 亚群的代表在系统发育上归属于 Sodalinema 属。我们的数据扩大了该属的生态和地理分布。我们修改了对 Sodalinema 属的描述,并提出了三个在系统发育、地理和生态标准上不同的新物种: Sodalinema orleanskyi sp。十一月,Sodalinema gerasimenkoae sp。十一月 和 Sodalinema stali sp。十一月 此外,还有一个新属和新种 Baaleninema simplex gen。等人。十一月 在 PCC7105 进化枝中进行了描述。通过这种方式,我们整理了当前“海洋 Geitlerinema”组的混乱并突出了其生态多样性。我们修改了对 Sodalinema 属的描述,并提出了三个在系统发育、地理和生态标准上不同的新物种: Sodalinema orleanskyi sp。十一月,Sodalinema gerasimenkoae sp。十一月 和 Sodalinema stali sp。十一月 此外,还有一个新属和新种 Baaleninema simplex gen。等人。十一月 在 PCC7105 进化枝中进行了描述。通过这种方式,我们整理了当前“海洋 Geitlerinema”组的混乱并突出了其生态多样性。我们修改了对 Sodalinema 属的描述,并提出了三个在系统发育、地理和生态标准上不同的新物种: Sodalinema orleanskyi sp。十一月,Sodalinema gerasimenkoae sp。十一月 和 Sodalinema stali sp。十一月 此外,还有一个新属和新种 Baaleninema simplex gen。等人。十一月 在 PCC7105 进化枝中进行了描述。通过这种方式,我们整理了当前“海洋 Geitlerinema”组的混乱并突出了其生态多样性。
更新日期:2021-07-11
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