ArticleZoological letters2019
Article in Zoological letters, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.
What it found
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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.
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Who cites it
14 citing papers in PubMed, 23 citations in OpenAlex.
- An emerging clock mechanism in a hydrozoan jellyfish.PLoS biology · 2026Article
- A light-entrained clock mechanism in a hydrozoan jellyfish synchronizes evening gamete release.PLoS biology · 2026Article
- Dimethyl sulfoxide perturbs sleep-related behavioral organization in multiple species and confounds interpretation of sleep phenotypes.Frontiers in toxicology · 2026Article
- Shedding Light on Patterns of Unconventional Expression of Opsin Genes in Hydra vulgaris.Integrative and comparative biology · 2025Article
- Effect of temperature cycles on the sleep-like state in Hydra vulgaris.Zoological letters · 2025Article
- Article
- Editorial: Rising stars in chronobiology 2022.Frontiers in physiology · 2024Article
- Article
- Evolution of self-sustained circadian rhythms is facilitated by seasonal change of daylight.Proceedings. Biological sciences · 2022Article
- Temporal gene expression patterns in the coralScience advances · 2022Article
- Photoreceptor Diversification Accompanies the Evolution of Anthozoa.Molecular biology and evolution · 2021Article
- A sleep-like state inScience advances · 2020Article
- Decoupling behavioral and transcriptional responses to color in an eyeless cnidarian.BMC genomics · 2020Article
- Linalool acts as a fast and reversible anesthetic in Hydra.PloS one · 2019Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
3 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundDay-night behavioral variation is observed in most organisms, and is generally controlled by circadian clocks and/or synchronization to environmental cues.
resultsWe found that the total behavior of hydras was elevated during the day and decreased at night under a 12-h light-dark cycle. Polyp contraction frequency, one component of behavior, exhibited a clear diel rhythm. However, neither total behavior nor polyp contraction frequency showed rhythmic changes under constant light and constant dark conditions. To identify the genes underlying diel behavior, we performed genome-wide transcriptome analysis of hydras under light-dark cycles. Using three different analytic algorithms, we found that 380 genes showed robust diel oscillations in expression. Some of these genes shared common features with diel cycle genes of other cnidarian species with endogenous clock systems.
conclusionHydras show diel behavioral rhythms under light-dark cycles despite the absence of canonical core clock genes. Given the functions of the genes showing diel oscillations in hydras and the similarities of those genes with the diel cycle genes of other cnidarian species with circadian clocks, it is possible that diel cycle genes play an important role across cnidarian species regardless of the presence or absence of core clock genes under light-dark cycles.
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Registered trials
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.