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| Main Authors: | , , , , , , , |
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| Format: | Artículo científico |
| Language: | en |
| Published: |
bioRxiv : the preprint server for biology
2025
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| Online Access: | https://pubmed.ncbi.nlm.nih.gov/40894719/ |
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| _version_ | 1868266157479297025 |
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| author | De Santiago, Alejandro Barnes, Shelby Pereira, Tiago José Marcellino-Barros, Mirayana Durden, Lekeah Han, Min Khant Thrash, J Cameron Bik, Holly M |
| author_facet | De Santiago, Alejandro Barnes, Shelby Pereira, Tiago José Marcellino-Barros, Mirayana Durden, Lekeah Han, Min Khant Thrash, J Cameron Bik, Holly M De Santiago, Alejandro Barnes, Shelby Pereira, Tiago José Marcellino-Barros, Mirayana Durden, Lekeah Han, Min Khant Thrash, J Cameron Bik, Holly M |
| collection | PubMed - marine biology |
| contents | is a novel symbiont of marine invertebrates that exhibits broad patterns of phylosymbiosis. De Santiago, Alejandro Barnes, Shelby Pereira, Tiago José Marcellino-Barros, Mirayana Durden, Lekeah Han, Min Khant Thrash, J Cameron Bik, Holly M Despite growing insights into the composition of marine invertebrate microbiomes, our understanding of their ecological and evolutionary patterns remains poor, owing to limited sampling depth and low-resolution datasets. Previous studies have provided mixed results when evaluating patterns of phylosymbiosis between marine invertebrates and marine bacteria. Here, we investigated potential animal-microbe symbioses in , an overlooked bacterial genus consistently identified as a core microbiome taxon in diverse invertebrates. Using a pangenomic analysis of 236 free-living and invertebrate-associated bacterial strains (including two new nematode-associated isolates generated in this study), we confirm that is a novel symbiont with substantial evidence of phylosymbiosis across at least three marine invertebrate phyla (e.g., Nematoda, Mollusca, and Cnidaria). Patterns of symbiosis were consistent irrespective of geography (including in Antarctica), with FISH images from nematodes indicating that bacterial symbionts form biofilms in the mouth and esophagus. The evolutionary history of is marked by substantial host-switching and lifestyle transitions, and host-associated genomes suggest that these bacteria are facultative symbionts involved in nutritional mutualisms. In marine environments, we hypothesize that horizontally-acquired symbionts may have co-evolved with invertebrates, using host mucus as a physical niche and food source, while providing their animal hosts with Vitamin B, amino acids, and bioavailable carbon compounds in return. |
| format | Artículo científico |
| id | pubmed_40894719 |
| institution | PubMed |
| language | en |
| publishDate | 2025 |
| publisher | bioRxiv : the preprint server for biology |
| record_format | pubmed |
| spellingShingle | is a novel symbiont of marine invertebrates that exhibits broad patterns of phylosymbiosis. De Santiago, Alejandro Barnes, Shelby Pereira, Tiago José Marcellino-Barros, Mirayana Durden, Lekeah Han, Min Khant Thrash, J Cameron Bik, Holly M is a novel symbiont of marine invertebrates that exhibits broad patterns of phylosymbiosis. De Santiago, Alejandro Barnes, Shelby Pereira, Tiago José Marcellino-Barros, Mirayana Durden, Lekeah Han, Min Khant Thrash, J Cameron Bik, Holly M Despite growing insights into the composition of marine invertebrate microbiomes, our understanding of their ecological and evolutionary patterns remains poor, owing to limited sampling depth and low-resolution datasets. Previous studies have provided mixed results when evaluating patterns of phylosymbiosis between marine invertebrates and marine bacteria. Here, we investigated potential animal-microbe symbioses in , an overlooked bacterial genus consistently identified as a core microbiome taxon in diverse invertebrates. Using a pangenomic analysis of 236 free-living and invertebrate-associated bacterial strains (including two new nematode-associated isolates generated in this study), we confirm that is a novel symbiont with substantial evidence of phylosymbiosis across at least three marine invertebrate phyla (e.g., Nematoda, Mollusca, and Cnidaria). Patterns of symbiosis were consistent irrespective of geography (including in Antarctica), with FISH images from nematodes indicating that bacterial symbionts form biofilms in the mouth and esophagus. The evolutionary history of is marked by substantial host-switching and lifestyle transitions, and host-associated genomes suggest that these bacteria are facultative symbionts involved in nutritional mutualisms. In marine environments, we hypothesize that horizontally-acquired symbionts may have co-evolved with invertebrates, using host mucus as a physical niche and food source, while providing their animal hosts with Vitamin B, amino acids, and bioavailable carbon compounds in return. |
| title | is a novel symbiont of marine invertebrates that exhibits broad patterns of phylosymbiosis. |
| url | https://pubmed.ncbi.nlm.nih.gov/40894719/ |