Everything is not everywhere: a tale on the biogeography of cyanobacteria

Ribeiro, Karine F.; Duarte, Leandro da Silva; Crossetti, Luciane Oliveira

doi:10.1007/s10750-018-3669-x

Cited by 42 publications

(32 citation statements)

References 210 publications

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“…This is not surprising, since the non-European regions are still very understudied. In accordance with the current hypotheses on the distribution of cyanobacterial species (Nabout et al 2013, Ribeiro et al 2018, an enormous unexplored taxonomic diversity can be expected in specific tropical microhabitats. Although describing new species based on a single isolate is RESOLUTION OF THE GENUS CYANOTHECE…”

supporting

confidence: 73%

“…, Ribeiro et al. ), an enormous unexplored taxonomic diversity can be expected in specific tropical microhabitats. Although describing new species based on a single isolate is not a favorable practice in cyanobacterial taxonomy, the strains (SAG 36.87, PCC 7424, PCC 7822, HA4964, Viet Nam 01, CCALA 1111, CCALA 1113) were so unique in both genotypic and phenotypic characters that leaving them unnamed would probably create more confusion than establishing new species.…”

Section: Discussionmentioning

confidence: 99%

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Taxonomic resolution of the genus Cyanothece (Chroococcales, Cyanobacteria), with a treatment on Gloeothece and three new genera, Crocosphaera, Rippkaea, and Zehria

Mareš

Johansen

Hauer

et al. 2019

Journal of Phycology

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The systematics of single‐celled cyanobacteria represents a major challenge due to morphological convergence and application of various taxonomic concepts. The genus Cyanothece is one of the most problematic cases, as the name has been applied to oval‐shaped coccoid cyanobacteria lacking sheaths with little regard to their phylogenetic position and details of morphology and ultrastructure. Hereby we analyze an extensive set of complementary genetic and phenotypic evidence to disentangle the relationships among these cyanobacteria. We provide diagnostic characters to separate the known genera Cyanothece, Gloeothece, and Aphanothece, and provide a valid description for Crocosphaera gen. nov. We describe two new genera, Rippkaea and Zehria, to characterize two distinct phylogenetic lineages outside the previously known genera. We further describe 13 new species in total including Cyanothece svehlovae, Gloeothece aequatorialis, G. aurea, G. bryophila, G. citriformis, G. reniformis, Gloeothece tonkinensis, G. verrucosa, Crocosphaera watsonii, C. subtropica, C. chwakensis, Rippkaea orientalis, and Zehria floridana to recognize the intrageneric diversity as rendered by polyphasic analysis. We discuss the close relationship of free‐living cyanobacteria from the Crocosphaera lineage to nitrogen‐fixing endosymbionts of marine algae. The current study includes several experimental strains (Crocosphaera and “Cyanothece”) important for the study of diazotrophy and the global oceanic nitrogen cycle, and provides evidence suggesting ancestral N2‐fixing capability in the chroococcalean lineage.

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confidence: 73%

Section: Discussionmentioning

confidence: 99%

Taxonomic resolution of the genus Cyanothece (Chroococcales, Cyanobacteria), with a treatment on Gloeothece and three new genera, Crocosphaera, Rippkaea, and Zehria

Mareš

Johansen

Hauer

et al. 2019

Journal of Phycology

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“…At the same time, the traditional idea that only current environmental conditions affect microbial distributions (Baas‐Becking, ) has been refuted in several studies (e.g. Ribeiro, Duarte, & Crossetti, ). To understand how microbial diversity is distributed and its causes are crucial, since microorganisms, especially prokaryotes, are an essential component of the Earth's biota and comprise the majority of biomass and genetic diversity (Whitman, Coleman, & Wiebe, ).…”

Section: Introductionmentioning

confidence: 99%

“…Research on cyanobacteria has explored aspects of public health and bloom formation, but little attention has been paid to their biodiversity (Nabout, da Silva Rocha, Carneiro, & Sant’Anna, ). The traditional classification and studies of cyanobacteria together with algae and plants, as well as the scarcity of qualified professionals to identify and classify taxa, have contributed to underestimation of their diversity and a lack of genetic information (Ribeiro et al, ). For instance, the number of cyanobacterial genomes amounts to approximately 0.6% of all available prokaryotic genomes (Alvarenga, Fiore, & Varani, ).…”

Section: Introductionmentioning

confidence: 99%

“…Studies in this field have recently increased and have provided evidence of geographic isolation for the thermophilic cyanobacterium Mastigocladus laminosus Cohn ex Kirchner (Miller, Castenholz, & Pedersen, ), allopatric speciation for the filamentous cyanobacterium Microcoleus vaginatus Gomont ex Gomont (Dvořák et al, ) and niche partitioning for the marine picocyanobacterium Prochlorococcus (Johnson et al, ). Since different cyanobacterial species show different distribution patterns (from cosmopolitan to restricted and endemic), a major research topic to be explored is which factors generate these unequal patterns (Ribeiro et al, ).…”

Section: Introductionmentioning

confidence: 99%

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Comparative phylogeography of two free‐living cosmopolitan cyanobacteria: Insights on biogeographic and latitudinal distribution

Ribeiro

Ferrero

Duarte

et al. 2020

Journal of Biogeography

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Aim: Free-living bacteria have long been assumed to have little biogeographic signature because of their high potential for passive dispersal. Raphidiopsis raciborskii and Microcystis aeruginosa are free-living cosmopolitan cyanobacteria with a probable tropical origin, that frequently form toxic blooms and are considered invasive species in middle latitudes. Despite these similarities, their phylogeographic patterns have seldom been directly compared. Our aim was to reconstruct the phylogeographic histories of R. raciborskii and M. aeruginosa, in order to explore whether their current distributions could be attributed to the same biogeographic events. Location: Global.Taxa: Raphidiopsis raciborskii (Nostocales) and Microcystis aeruginosa (Chroococcales). Methods:The phylogeography of these species was studied based on global genetic diversity patterns from a dataset of worldwide 16S rRNA gene sequences. Genetic diversity indices were measured globally and by latitude. Analyses based on distance matrices were performed to evaluate the correlation between genetic divergence, geographic distance and climatic conditions. Demographic history was investigated through neutrality tests and Bayesian Skyline Plot analysis.Results: For both species, the genetic diversity is highest in tropical latitudes, and the data provided evidence of recent population expansions (in the last 2,500 years). R. raciborskii showed much lower genetic diversity than M. aeruginosa. A significant phylogeographic structure was found for R. raciborskii but not for M. aeruginosa. Climatic conditions had a significant influence on the genetic structure of both species, but this influence was stronger and varied according to latitude only for R. raciborskii. Main Conclusions:Supporting the hypothesis of a tropical origin and recent dispersal to temperate habitats, both species had higher genetic diversity in tropical latitudes and showed evidence of recent population expansions. R. raciborskii populations showed a significant decline in genetic similarity with increasing geographic distance, indicating an interaction between drift and some dispersal limitation on its phylogeography. In contrast, M. aeruginosa seemed to have a high frequency of intercontinental dispersal. Finally, the particularities of each species, such as the ability to form akinetes in R. raciborskii and high genome plasticity and niche specialization in M. | 1107 RIBEIRO Et al.

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Metabarcoding reveals unique microbial mat communities and evidence of biogeographic influence in low‐oxygen, high‐sulfur sinkholes and springs

Fray,

McGovern,

Casamatta

et al. 2024

Ecology and Evolution

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High‐sulfur, low‐oxygen environments formed by underwater sinkholes and springs create unique habitats populated by microbial mat communities. To explore the diversity and biogeography of these mats, samples were collected from three sites in Alpena, Michigan, one site in Monroe, Michigan, and one site in Palm Coast, Florida. Our study investigated previously undescribed eukaryotic diversity in these habitats and further explored their bacterial communities. Mat samples and water parameters were collected from sulfur spring sites during the spring, summer, and fall of 2022. Cyanobacteria and diatoms were cultured from mat subsamples to create a culture‐based DNA reference library. Remaining mat samples were used for metabarcoding of the 16S and rbcL regions to explore bacterial and diatom diversity, respectively. Analyses of water chemistry, alpha diversity, and beta diversity articulated a range of high‐sulfur, low‐oxygen habitats, each with distinct microbial communities. Conductivity, pH, dissolved oxygen, temperature, sulfate, and chloride had significant influences on community composition but did not describe the differences between communities well. Chloride concentration had the strongest correlation with microbial community structure. Mantel tests revealed that biogeography contributed to differences between communities as well. Our results provide novel information on microbial mat composition and present evidence that both local conditions and biogeography influence these unique communities.

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Everything is not everywhere: a tale on the biogeography of cyanobacteria

Cited by 42 publications

References 210 publications

Taxonomic resolution of the genus Cyanothece (Chroococcales, Cyanobacteria), with a treatment on Gloeothece and three new genera, Crocosphaera, Rippkaea, and Zehria

Taxonomic resolution of the genus Cyanothece (Chroococcales, Cyanobacteria), with a treatment on Gloeothece and three new genera, Crocosphaera, Rippkaea, and Zehria

Comparative phylogeography of two free‐living cosmopolitan cyanobacteria: Insights on biogeographic and latitudinal distribution

Metabarcoding reveals unique microbial mat communities and evidence of biogeographic influence in low‐oxygen, high‐sulfur sinkholes and springs

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