Evidence map›Paper›PMID 27871231›Full record

ArticleBMC genomics2016

Transcriptomic and proteomic insights into innate immunity and adaptations to a symbiotic lifestyle in the gutless marine worm Olavius algarvensis.

Juliane Wippler, Manuel Kleiner, Christian Lott, Alexander Gruhl, Paul E Abraham, Richard J Giannone, Jacque C Young, Robert L Hettich, Nicole Dubilier

Open access · goldAbstract read
In one paragraph

Article in BMC genomics, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed
2.0field-weighted citation impact, top 13% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

24 citing papers in PubMed, 49 citations in OpenAlex.

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  7. Considerations for constructing a protein sequence database for metaproteomics.Computational and structural biotechnology journal · 2022
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  8. Evaluation of RNAMicrobiology spectrum · 2021
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  10. Conservative and Atypical Ferritins of Sponges.International journal of molecular sciences · 2021
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  18. Review
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  20. Chemosynthetic symbiont with a drastically reduced genome serves as primary energy storage in the marine flatwormProceedings of the National Academy of Sciences of the United States of America · 2019
    Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

9 authors at 3 institutions in 3 countries.

Juliane WipplerSymbiosis Department, Max Planck Institute for Marine Microbiology, Celsiusstr. 1, D-28359, Bremen, Germany. jwippler@mpi-bremen.de.ORCID 0000-0002-0452-5053
Manuel KleinerSymbiosis Department, Max Planck Institute for Marine Microbiology, Celsiusstr. 1, D-28359, Bremen, Germany. manuel.kleiner@ucalgary.ca.
Christian LottSymbiosis Department, Max Planck Institute for Marine Microbiology, Celsiusstr. 1, D-28359, Bremen, Germany.
Alexander GruhlSymbiosis Department, Max Planck Institute for Marine Microbiology, Celsiusstr. 1, D-28359, Bremen, Germany.
Paul E AbrahamOak Ridge National Laboratory, Chemical Sciences Division, Oak Ridge, Tennessee, 1 Bethel Valley Rd, Oak Ridge, TN, 37831, USA.
Richard J GiannoneOak Ridge National Laboratory, Chemical Sciences Division, Oak Ridge, Tennessee, 1 Bethel Valley Rd, Oak Ridge, TN, 37831, USA.
Jacque C YoungOak Ridge National Laboratory, Chemical Sciences Division, Oak Ridge, Tennessee, 1 Bethel Valley Rd, Oak Ridge, TN, 37831, USA.
Robert L HettichOak Ridge National Laboratory, Chemical Sciences Division, Oak Ridge, Tennessee, 1 Bethel Valley Rd, Oak Ridge, TN, 37831, USA.
Nicole DubilierSymbiosis Department, Max Planck Institute for Marine Microbiology, Celsiusstr. 1, D-28359, Bremen, Germany.
Max Planck Institute for Marine Microbiology · DEOak Ridge National Laboratory · USUniversity of Calgary · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe gutless marine worm Olavius algarvensis has a completely reduced digestive and excretory system, and lives in an obligate nutritional symbiosis with bacterial symbionts. While considerable knowledge has been gained of the symbionts, the host has remained largely unstudied. Here, we generated transcriptomes and proteomes of O. algarvensis to better understand how this annelid worm gains nutrition from its symbionts, how it adapted physiologically to a symbiotic lifestyle, and how its innate immune system recognizes and responds to its symbiotic microbiota.

resultsKey adaptations to the symbiosis include (i) the expression of gut-specific digestive enzymes despite the absence of a gut, most likely for the digestion of symbionts in the host's epidermal cells; (ii) a modified hemoglobin that may bind hydrogen sulfide produced by two of the worm's symbionts; and (iii) the expression of a very abundant protein for oxygen storage, hemerythrin, that could provide oxygen to the symbionts and the host under anoxic conditions. Additionally, we identified a large repertoire of proteins involved in interactions between the worm's innate immune system and its symbiotic microbiota, such as peptidoglycan recognition proteins, lectins, fibrinogen-related proteins, Toll and scavenger receptors, and antimicrobial proteins.

conclusionsWe show how this worm, over the course of evolutionary time, has modified widely-used proteins and changed their expression patterns in adaptation to its symbiotic lifestyle and describe expressed components of the innate immune system in a marine oligochaete. Our results provide further support for the recent realization that animals have evolved within the context of their associations with microbes and that their adaptive responses to symbiotic microbiota have led to biological innovations.

Indexed as

ProteomeTranscriptomeAdaptation, BiologicalAmino Acid SequenceAnimalsBiomarkersComputational BiologyGene Expression ProfilingHigh-Throughput Nucleotide SequencingImmunity, InnateMicrobiotaModels, BiologicalOligochaetaProteomicsReceptors, Pattern RecognitionSymbiosisBiomarkersProteomeReceptors, Pattern RecognitionAnnelidaCarbon monoxideChemosynthetic symbiosisFREPImmunologyOligochaetaPGRPPhallodrilinaeRespiratory pigmentRNA-SeqSRCR

Identifiers

PMID27871231
PMCPMC5117596
OpenAlexW2553741717

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.