Reference - Detail
| RRC ID | 88108 |
|---|---|
| Author | Chen YC, Zang KE, Ahamed H, Ringstad N. |
| Title | Food sensing controls C. elegans reproductive behavior by neuromodulatory disinhibition. |
| Journal | Sci Adv |
| Abstract |
Like many organisms, the roundworm Caenorhabditis elegans incorporates an assessment of environmental quality into its reproductive strategy. C. elegans hermaphrodites release fertilized eggs into food-rich environments but retain them in the absence of food. Here, we report the discovery of a neural circuit required for the modulation of reproductive behavior by food sensing. A mutation that electrically silences the AVK interneurons uncouples egg laying from detection of environmental food cues. We find that AVK activity inhibits egg laying, and AVKs themselves are inhibited by dopamine released from food-sensing neurons. AVKs express a large number of structurally and functionally diverse neuropeptides. Coordination of food-sensing and reproductive behavior requires a subset of AVK neuropeptides that converge on a small ensemble of premotor neurons that coexpress their cognate receptors. Modulation of C. elegans reproductive behavior, therefore, requires a cascade of neuromodulatory signals that uses disinhibition and combinatorial neuropeptide signals to activate reproductive behavior when food is sensed. |
| Volume | 11(16) |
| Pages | eadu5829 |
| Published | 2025-4-18 |
| DOI | 10.1126/sciadv.adu5829 |
| PMID | 40238881 |
| PMC | PMC12002139 |
| MeSH | Animals Caenorhabditis elegans* / genetics Caenorhabditis elegans* / physiology Caenorhabditis elegans Proteins / genetics Caenorhabditis elegans Proteins / metabolism Dopamine / metabolism Feeding Behavior Interneurons / metabolism Interneurons / physiology Mutation Neurons / metabolism Neuropeptides / genetics Neuropeptides / metabolism Reproduction Sexual Behavior, Animal* / physiology |
| Altmetric score |
オルトメトリクス指標項目
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| The most frequently cited source | Bluesky |
| Total number of mentions | 10 |
| Altmetric score changes over past 6months | 0.2 |
| Resource | |
| C.elegans | tm6232 tm2569 |