Evolutionary convergence and trophic diversity in hot vent and cold seep shrimps showcase a continuum of symbiosis.
Fuente:
PubMed
Saved in:
| Main Authors: | , , , , , , , , , , , |
|---|---|
| Format: | Artículo científico |
| Language: | en |
| Published: |
Proceedings. Biological sciences
2026
|
| Subjects: | |
| Online Access: | |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1868266087569686530 |
|---|---|
| author | Methou, Pierre Mathieu-Resuge, Margaux Michel, Loïc N Cueff-Gauchard, Valérie Watanabe, Hiromi Kayama Cowell, Emily J Copley, Jonathan T Beinart, Roxanne A Zbinden, Magali Pradillon, Florence Cambon, Marie-Anne Chen, Chong |
| author_facet | Methou, Pierre Mathieu-Resuge, Margaux Michel, Loïc N Cueff-Gauchard, Valérie Watanabe, Hiromi Kayama Cowell, Emily J Copley, Jonathan T Beinart, Roxanne A Zbinden, Magali Pradillon, Florence Cambon, Marie-Anne Chen, Chong Methou, Pierre Mathieu-Resuge, Margaux Michel, Loïc N Cueff-Gauchard, Valérie Watanabe, Hiromi Kayama Cowell, Emily J Copley, Jonathan T Beinart, Roxanne A Zbinden, Magali Pradillon, Florence Cambon, Marie-Anne Chen, Chong |
| collection | PubMed - marine biology |
| contents | Evolutionary convergence and trophic diversity in hot vent and cold seep shrimps showcase a continuum of symbiosis. Methou, Pierre Mathieu-Resuge, Margaux Michel, Loïc N Cueff-Gauchard, Valérie Watanabe, Hiromi Kayama Cowell, Emily J Copley, Jonathan T Beinart, Roxanne A Zbinden, Magali Pradillon, Florence Cambon, Marie-Anne Chen, Chong Animals Symbiosis Biological Evolution Hydrothermal Vents Phylogeny Decapoda Ecosystem Convergent evolution offers a powerful lens through which to examine the selective forces shaping life in extreme environments. In deep-sea hot vents and cold seeps, invertebrates have independently evolved symbioses with chemosynthetic bacteria, but repeated origins of such associations within a family remain rare. Here, we investigate the evolutionary emergence of chemosymbiosis in the shrimp family Alvinocarididae across 22 species collected globally. Electron microscopy identified a gradient of epibiotic bacterial colonization within the cephalothoracic cavity, ranging from absent to dense filamentous mats, suggesting distinct trophic strategies. Isotope and lipid trophic markers confirmed differences in reliance on chemosynthetic production among sympatric species with different bacterial colonization from a single vent. Phylogenetic analysis reveals at least two independent origins of chemosymbiosis, suggesting evolutionary convergence. Microhabitat association data further show that symbiotic phenotypes are most common in shrimps occupying the hottest, most geofluid-enriched microhabitats, though exceptions suggest contributions from additional ecological or physiological constraints. Our findings reveal many alvinocaridids as gradually evolving towards reliance on symbiosis, highlighting the importance of intermediate cases to understand the pathways to chemosymbiosis. This study contributes to a broader understanding of the predictability of evolutionary outcomes in dynamic habitats such as vents, with broader implications for resilience of deep-sea ecosystems. |
| format | Artículo científico |
| id | pubmed_41667107 |
| institution | PubMed |
| language | en |
| publishDate | 2026 |
| publisher | Proceedings. Biological sciences |
| record_format | pubmed |
| spellingShingle | Evolutionary convergence and trophic diversity in hot vent and cold seep shrimps showcase a continuum of symbiosis. Methou, Pierre Mathieu-Resuge, Margaux Michel, Loïc N Cueff-Gauchard, Valérie Watanabe, Hiromi Kayama Cowell, Emily J Copley, Jonathan T Beinart, Roxanne A Zbinden, Magali Pradillon, Florence Cambon, Marie-Anne Chen, Chong Animals Symbiosis Biological Evolution Hydrothermal Vents Phylogeny Decapoda Ecosystem Evolutionary convergence and trophic diversity in hot vent and cold seep shrimps showcase a continuum of symbiosis. Methou, Pierre Mathieu-Resuge, Margaux Michel, Loïc N Cueff-Gauchard, Valérie Watanabe, Hiromi Kayama Cowell, Emily J Copley, Jonathan T Beinart, Roxanne A Zbinden, Magali Pradillon, Florence Cambon, Marie-Anne Chen, Chong Animals Symbiosis Biological Evolution Hydrothermal Vents Phylogeny Decapoda Ecosystem Convergent evolution offers a powerful lens through which to examine the selective forces shaping life in extreme environments. In deep-sea hot vents and cold seeps, invertebrates have independently evolved symbioses with chemosynthetic bacteria, but repeated origins of such associations within a family remain rare. Here, we investigate the evolutionary emergence of chemosymbiosis in the shrimp family Alvinocarididae across 22 species collected globally. Electron microscopy identified a gradient of epibiotic bacterial colonization within the cephalothoracic cavity, ranging from absent to dense filamentous mats, suggesting distinct trophic strategies. Isotope and lipid trophic markers confirmed differences in reliance on chemosynthetic production among sympatric species with different bacterial colonization from a single vent. Phylogenetic analysis reveals at least two independent origins of chemosymbiosis, suggesting evolutionary convergence. Microhabitat association data further show that symbiotic phenotypes are most common in shrimps occupying the hottest, most geofluid-enriched microhabitats, though exceptions suggest contributions from additional ecological or physiological constraints. Our findings reveal many alvinocaridids as gradually evolving towards reliance on symbiosis, highlighting the importance of intermediate cases to understand the pathways to chemosymbiosis. This study contributes to a broader understanding of the predictability of evolutionary outcomes in dynamic habitats such as vents, with broader implications for resilience of deep-sea ecosystems. |
| title | Evolutionary convergence and trophic diversity in hot vent and cold seep shrimps showcase a continuum of symbiosis. |
| topic | Animals Symbiosis Biological Evolution Hydrothermal Vents Phylogeny Decapoda Ecosystem |
| url | https://pubmed.ncbi.nlm.nih.gov/41667107/ |