Taxonomic Discussion on Cyanobacterial Systematics at Family Level, with Special Regards to Phormidiaceae by Using the Strains of Chinese Newly Recorded Genera Ancylothrix and Potamolinea

Abstract

In the past decades, the taxonomic status of the cyanobacterial family Phormidiaceae has always been chaotic and problematic. In this study, filamentous cyanobacteria were investigated in the east of China, and twenty strains isolated from different locations of Zhejiang Province were characterized. Using the polyphasic approach combining morphological, molecular and phylogenetic features, these strains were grouped within the members of the genera Ancylothrix and Potamolinea, the newly recorded genera of cyanobacteria in China. Based on the collected taxonomic information of the family Phormidiaceae, cyanobacterial systematics at family level were further discussed. This study provided a simple and efficient example to perform the phylogenetic evaluation for the monophyly and rationality of currently used families of cyanobacteria by using the regional strains based on the polyphasic approach.

Revealing the Diversity of Thin Filamentous Cyanobacteria, with the Discovery of a Novel Species, Pegethrix qiandaoensis sp. nov. (Oculatellaceae, Oculatellales), in a Freshwater Lake in China

“…To establish the cyanobacterial taxonomic system consisting of monophyletic groups at all ranks is becoming an ideal aim for studying the true diversity of cyanobacteria [33,34]. Further, with the usage of the polyphasic approach, a large number of cyanobacterial new genera and species has been described, which subsequently led to substantial taxonomic revisions, especially at the order and family levels [4,14,16].…”

Cyanoseq: A database of cyanobacterial 16S rRNA gene sequences with curated taxonomy

“…Currently, there are no strains nor sequences that are correctly attributed to Lyngbya sensu stricto. Furthermore, within SILVA these strains or sequences are attributed to the Phormidiaceae, a family which is not accepted taxonomically (Cheng et al, 2022;Strunecký et al, 2022).…”

“…Currently, there are no strains nor sequences that are correctly attributed to Lyngbya sensu stricto. Furthermore, within SILVA these strains or sequences are attributed to the Phormidiaceae, a family which is not accepted taxonomically (Cheng et al, 2022; Strunecký et al, 2022). Another example includes Oscillatoria PCC‐6304 incorrectly labeled as the type for Oscillatoria within GTDB and, thus, Oscillatoriaceae and listed as Oscillatoria within SILVA; however, this strain corresponds to the genus Laspinema (Heidari et al, 2018; Stanojković et al, 2022).…”

Cyanobacteria of Ukraine: actual diversity, trends of taxonomic changes, features of zonal and ectopic distribution

“…Активне застосування комплексного підходу з широким залученням молекулярнофілогенетичних даних, розроблення нової класифікаційної схеми, покликаної відобразити еволюційну історію групи, спираючись на монофілетичні таксони ціанобактерій (Komárek et al, 2014), спричинило глибокі зміни в їхній систематиці. Щороку описують десятки нових родів і видів, з'являються й зникають нові родини та порядки (Komárkova et al, 2013;Hauer et al, 2014;Moreira et al, 2017;Mai et al, 2018;Komárek et al, 2020;Johansen et al, 2021;Pietrasiak et al, 2021;Bertold et al, 2022;Cheng et al, 2022). Крім того, протягом останніх 20 років українські альгологи активно продовжували флористичні та таксономічні дослідження, у т. ч. із залученням молекулярних методів, значно розширивши список видів ціанобактерій і таксономічну структуру флори (Kostikov, Golub, 2007;Sadogurskaya, 2007;Vinogradova, Darienko, 2008;Kovalenko, 2009;Nesterova, 2010;Vinogradova, Mikhailiuk, 2010;Gerasimiuk, 2011;Yarmoshenko et al, 2012;Voitsekhovich, 2013;Mikhailiuk et al, 2016Mikhailiuk et al, , 2018Vinogradova, 2016а;Beresovska, 2017;Vinogradova et al, 2017;Romanenko et al, 2020;Mikhailiuk, Vinogradova, 2022).…”