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The insecticide permethrin induces transgenerational behavioral changes linked to transcriptomic and epigenetic alterations in zebrafish (Danio rerio)
- Source :
- Science of the Total Environment, Science of the Total Environment, Elsevier, 2021, 779, pp.146404. ⟨10.1016/j.scitotenv.2021.146404⟩, Science of the Total Environment, 2021, 779, pp.146404. ⟨10.1016/j.scitotenv.2021.146404⟩, Science Of The Total Environment (0048-9697) (Elsevier BV), 2021-07, Vol. 779, P. 146404 (11p.)
- Publication Year :
- 2021
- Publisher :
- HAL CCSD, 2021.
-
Abstract
- International audience; The pyrethroid insecticide permethrin is widely used for agricultural and domestic purposes. Previous data indicated that it acts as a developmental neurotoxicant and can induce transgenerational effects in non-target organisms. However, associated underlying mechanisms remain unclear. The aim of this study was to investigate permethrin-related transgenerational effects in the zebrafish model, and to identify possible molecular mechanisms underlying inheritance. Zebrafish (F0) were exposed to permethrin during early-life (2 hours postfertilization up to 28 days). The F1 and F2 offspring generations were obtained by pairing exposed F0 males and females, and were bred unexposed. Locomotor and anxiety behavior were investigated, together with transcriptomic and epigenomic (DNA methylation) changes in brains. Permethrin exposed F0 fish were hypoactive at adulthood, while males from the F1 and F2 generations showed a specific decrease in anxiety-like behavior. In F0, transcriptomic data showed enrichment in pathways related to glutamatergic synapse activity, which may partly underlie the behavioral effects. In F1 and F2 males, dysregulation of similar pathways was observed, including a subset of differentially methylated regions that were inherited from the F0 to the F2 generation and indicated stable dysregulation of glutamatergic signaling. Altogether, the present results provide novel evidence on the transgenerational neurotoxic effects of permethrin, as well as mechanistic insight: a transient exposure induces persistent transcriptional and DNA methylation changes that may translate into transgenerational alteration of glutamatergic signaling and, thus, into behavioral alterations.
- Subjects :
- Epigenomics
Male
Insecticides
Environmental Engineering
010504 meteorology & atmospheric sciences
glutamatergic signaling
Danio
010501 environmental sciences
01 natural sciences
Epigenesis, Genetic
Glutamatergic
Environmental Chemistry
Animals
Epigenetics
Transgenerational epigenetic inheritance
Waste Management and Disposal
Zebrafish
Permethrin
pesticide
0105 earth and related environmental sciences
Genetics
DNA methylation
biology
Behavior, Animal
biology.organism_classification
Pollution
Pesticide
Glutamatergic signaling
Differentially methylated regions
Female
developmental neurotoxicity
Glutamatergic synapse
[SDV.TOX.ECO]Life Sciences [q-bio]/Toxicology/Ecotoxicology
Developmental neurotoxicity
Transcriptome
Subjects
Details
- Language :
- English
- ISSN :
- 00489697 and 18791026
- Database :
- OpenAIRE
- Journal :
- Science of the Total Environment, Science of the Total Environment, Elsevier, 2021, 779, pp.146404. ⟨10.1016/j.scitotenv.2021.146404⟩, Science of the Total Environment, 2021, 779, pp.146404. ⟨10.1016/j.scitotenv.2021.146404⟩, Science Of The Total Environment (0048-9697) (Elsevier BV), 2021-07, Vol. 779, P. 146404 (11p.)
- Accession number :
- edsair.doi.dedup.....72a48ca2fcbcc8f32fc862c1c2fcc6d3
- Full Text :
- https://doi.org/10.1016/j.scitotenv.2021.146404⟩