Environmental influences on the epigenomes of herpetofauna and fish

Biochemistry and Cell Biology = Biochimie Et Biologie Cellulaire
S Austin HammondCaren C Helbing

Abstract

Herpetofauna (amphibians and reptiles) and fish represent important sentinel and indicator species for environmental and ecosystem health. It is widely accepted that the epigenome plays an important role in gene expression regulation. Environmental stimuli, including temperature and pollutants, influence gene activity, and there is growing evidence demonstrating that an important mechanism is through modulation of the epigenome. This has been primarily studied in human and mammalian models; relatively little is known about the impact of environmental conditions or pollutants on herpetofauna or fish epigenomes and the regulatory consequences of these changes on gene expression. Herein we review recent studies that have begun to address this deficiency, which have mainly focused on limited specific epigenetic marks and individual genes or large-scale global changes in DNA methylation, owing to the comparative ease of measurement. Greater understanding of the epigenetic influences of these environmental factors will depend on increased availability of relevant species-specific genomic sequence information to facilitate chromatin immunoprecipitation and DNA methylation experiments.

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Citations

Jun 20, 2018·Frontiers in Immunology·Sebastian BoltanaSimon Mackenzie
Jun 4, 2019·Frontiers in Endocrinology·Anita A ThambirajahCaren C Helbing
Aug 21, 2021·Journal of Environmental Sciences (China)·Jiangyuan HanDejun Huang

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