Saved in:
| Main Authors: | , , |
|---|---|
| Format: | Artículo científico |
| Language: | en |
| Published: |
mSphere
2025
|
| Subjects: | |
| Online Access: | https://pubmed.ncbi.nlm.nih.gov/39882857/ |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1868266249888202752 |
|---|---|
| author | Grettenberger, Christen Gold, David A Brown, C Titus |
| author_facet | Grettenberger, Christen Gold, David A Brown, C Titus Grettenberger, Christen Gold, David A Brown, C Titus |
| collection | PubMed - marine biology |
| contents | Distribution of early-branching Cyanobacteriia and the potential habitats that gave rise to the earliest oxygenic phototrophs. Grettenberger, Christen Gold, David A Brown, C Titus Cyanobacteria Ecosystem Photosynthesis Phylogeny Oxygen Phototrophic Processes Computational Biology Metagenome Biological Evolution The evolution of oxygenic photosynthesis in the Cyanobacteria was one of the most transformative events in Earth history, eventually leading to the oxygenation of Earth's atmosphere. However, it is difficult to understand how the earliest Cyanobacteria functioned or evolved on early Earth in part because we do not understand their ecology, including the environments in which they lived. Here, we use a cutting-edge bioinformatics tool to survey nearly 500,000 metagenomes for relatives of the taxa that likely bookended the evolution of oxygenic photosynthesis to identify the modern environments in which these organisms live. Ancestral state reconstruction suggests that the common ancestors of these organisms lived in terrestrial (soil and/or freshwater) environments. This restricted distribution may have increased the lag between the evolution of oxygenic photosynthesis and the oxygenation of Earth's atmosphere.IMPORTANCECyanobacteria generate oxygen as part of their metabolism and are responsible for the rise of oxygen in Earth's atmosphere over two billion years ago. However, we do not know how long this process may have taken. To help constrain how long this process would have taken, it is necessary to understand where the earliest Cyanobacteria may have lived. Here, we use a cutting-edge bioinformatics tool called branch water to examine the environments where modern Cyanobacteria and their relatives live to constrain those inhabited by the earliest Cyanobacteria. We find that these species likely lived in non-marine environments. This indicates that the rise of oxygen may have taken longer than previously believed. |
| format | Artículo científico |
| id | pubmed_39882857 |
| institution | PubMed |
| language | en |
| publishDate | 2025 |
| publisher | mSphere |
| record_format | pubmed |
| spellingShingle | Distribution of early-branching Cyanobacteriia and the potential habitats that gave rise to the earliest oxygenic phototrophs. Grettenberger, Christen Gold, David A Brown, C Titus Cyanobacteria Ecosystem Photosynthesis Phylogeny Oxygen Phototrophic Processes Computational Biology Metagenome Biological Evolution Distribution of early-branching Cyanobacteriia and the potential habitats that gave rise to the earliest oxygenic phototrophs. Grettenberger, Christen Gold, David A Brown, C Titus Cyanobacteria Ecosystem Photosynthesis Phylogeny Oxygen Phototrophic Processes Computational Biology Metagenome Biological Evolution The evolution of oxygenic photosynthesis in the Cyanobacteria was one of the most transformative events in Earth history, eventually leading to the oxygenation of Earth's atmosphere. However, it is difficult to understand how the earliest Cyanobacteria functioned or evolved on early Earth in part because we do not understand their ecology, including the environments in which they lived. Here, we use a cutting-edge bioinformatics tool to survey nearly 500,000 metagenomes for relatives of the taxa that likely bookended the evolution of oxygenic photosynthesis to identify the modern environments in which these organisms live. Ancestral state reconstruction suggests that the common ancestors of these organisms lived in terrestrial (soil and/or freshwater) environments. This restricted distribution may have increased the lag between the evolution of oxygenic photosynthesis and the oxygenation of Earth's atmosphere.IMPORTANCECyanobacteria generate oxygen as part of their metabolism and are responsible for the rise of oxygen in Earth's atmosphere over two billion years ago. However, we do not know how long this process may have taken. To help constrain how long this process would have taken, it is necessary to understand where the earliest Cyanobacteria may have lived. Here, we use a cutting-edge bioinformatics tool called branch water to examine the environments where modern Cyanobacteria and their relatives live to constrain those inhabited by the earliest Cyanobacteria. We find that these species likely lived in non-marine environments. This indicates that the rise of oxygen may have taken longer than previously believed. |
| title | Distribution of early-branching Cyanobacteriia and the potential habitats that gave rise to the earliest oxygenic phototrophs. |
| topic | Cyanobacteria Ecosystem Photosynthesis Phylogeny Oxygen Phototrophic Processes Computational Biology Metagenome Biological Evolution |
| url | https://pubmed.ncbi.nlm.nih.gov/39882857/ |