Cited by 17Microbial Community Ecology and PhysiologyMarine Biology and Ecology ResearchInsect symbiosis and bacterial influences

Investigation of bacterial communities within the digestive organs of the hydrothermal vent shrimp Rimicaris exoculata provide insights into holobiont geographic clustering.

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Cowart, Dominique A., Durand, Lucile, Cambon-Bonavita, Marie-Anne, Arnaud-Haond, Sophie·2017·PLoS ONE

Abstract

Prokaryotic communities forming symbiotic relationships with the vent shrimp, Rimicaris exoculata, are well studied components of hydrothermal ecosystems at the Mid-Atlantic Ridge (MAR). Despite the tight link between host and symbiont, the observed lack of spatial genetic structure seen in R. exoculata contrasts with the geographic differentiation detected in specific bacterial ectosymbionts. The geographic clustering of bacterial lineages within a seemingly panmictic host suggests either the presence of finer scale restriction to gene flow not yet detected in the host, horizontal transmission (environmental selection) of its endosymbionts as a consequence of unique vent geochemistry, or vertically transmitted endosymbionts that exhibit genetic differentiation. To identify which hypothesis best fits, we tested whether bacterial assemblages exhibit differentiation across sites or host populations by performing a 16S rRNA metabarcoding survey on R. exoculata digestive prokaryote samples (n = 31) taken from three geochemically distinct vents across MAR: Rainbow, Trans-Atlantic Geotraverse (TAG) and Logatchev. Analysis of communities across two organs (digestive tract, stomach), three molt colors (white, red, black) and three life stages (eggs, juveniles, adults) also provided insights into symbiont transmission mode. Examining both whole communities and operational taxonomic units (OTUs) confirmed the presence of three main epibionts: Epsilonproteobacteria, Mollicutes and Deferribacteres. With these findings, we identified a clear pattern of geographic segregation by vent in OTUs assigned to Epsilonproteobacteria. Additionally, we detected evidence for differentiation among all communities associated to vents and life stages. Overall, results suggest a combination of environmental selection and vertical inheritance of some of the symbiotic lineages.

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  • Our metabarcoding results provide a second report of Entomoplasmatales on the eggs of R. exoculata with a different sequencing technique: Illumina MiSeq versus 454 Pyrosequencing used in Cowart et al. (2017).

    “Despite their very low abundance, our metabarcoding results provide a second report of this group on the eggs of R. exoculata with a different sequencing technique: Illumina MiSeq versus 454 Pyrosequencing used in Cowart et al. (2017).”

    From Is It First the Egg or the Shrimp? – Diversity and Variation in Microbial Communities Colonizing Broods of the Vent Shrimp Rimicaris exoculata During Embryonic Development (2019) · cites this paper as Cowart et al. (2017)

    The Materials and methods section says Cowart et al. used 454 pyrosequencing on R. exoculata samples that included eggs. The Discussion (‘Bacterial communities over the life cycle’; no page given) reports very few Mollicutes in eggs, but our copy does not identify the egg-associated bacteria specifically as Entomoplasmatales. Thus the cited paper supports the sequencing comparison and a broader bacterial-group finding, not the claimed prior report of Entomoplasmatales on eggs. (LLM, conf=0.86)

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Research works printed but not linked: 2

  1. [1]Childress J, Fisher C. The biology of hydrothermal vent animals: physiology, biochemistry, and autotrophic symbioses. Oceanography and marine biology: an annual review. 1992; 30: 337– 441.
  2. [52]Garrity G, Holt J, Huber H, Stetter K, Greene A, Patel B, et al. Deferribacteres phy. nov.. In: Springer, editor. Bergey’s Manual of Systematic Bacteriology New York2001. p. 465–71.

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Authors
Cowart, D. A., Durand, L., Cambon-Bonavita, M.-A., & Arnaud-Haond, S.
Affiliations
Ifremer (FR)
Venue
PLoS ONE
Published
2017-03-15
Volume
12
Issue
3
Pages
e0172543
ISSN
1932-6203 (ISSN-L)
OpenAlex
W2603935660
Cited by
17
References
59
Citations by year
2025: 1 · 2024: 1 · 2023: 2 · 2022: 5 · 2021: 2 · 2020: 2 · 2019: 2 · 2018: 2
FWCI
1.24
Type
journal article
Language
en
Open access
Locations
  • PLoS ONE (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • Institutional Archive of Ifremer (French Research Institute for Exploitation of the Sea) (submittedVersion, other-oa)
  • HAL (submittedVersion, cc-by)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
  • Figshare (submittedVersion, cc-by)
Funders
  • European Union (FP7, Hermione project)
  • Ifremer
Topics
  • Physical Sciences › Environmental Science › Ecology › Microbial Community Ecology and Physiology
  • Physical Sciences › Earth and Planetary Sciences › Oceanography › Marine Biology and Ecology Research
  • Life Sciences › Agricultural and Biological Sciences › Insect Science › Insect symbiosis and bacterial influences
Keywords
Rimicaris exoculata, hydrothermal vent shrimp, holobiont, symbiotic bacteria, geographic clustering, endosymbionts, epibionts, Epsilonproteobacteria, Mollicutes, Deferribacteres, symbiont transmission, vertical transmission, horizontal transmission, life stages, gastrointestinal tract, Mid-Atlantic Ridge, TAG hydrothermal field, Logatchev hydrothermal field, Rainbow hydrothermal field, 16S rRNA metabarcoding
MeSH terms
Animals, Crustacea, Geography, Gastrointestinal Tract

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