Peculiarity of marker genes’ expression in bank voles Clethrionomys glareolus characterizing ecotoxicity effects of the territory contaminated with dioxins
https://doi.org/10.55959/MSU0137-0952-16-78-2-6
Abstract
To assess the ecotoxicity of low doses of dioxins is almost impossible without considering the influence of real exposure conditions on these substances’ properties. The best approach to take these into account is the biomonitoring of the initial toxic effects’ manifestation. We studied bank voles from population naturally exposed to dioxins, the summer-born adults and overwintered functional groups of animals differed by dioxin body burden. Dioxin-free samples of a vivarium bank voles’ line served as a control. Initial effects of ecotoxicity were characterized by transcriptional levels of genetic markers: ahr, cyp1a2, keap1, dnmt1, dnmt3a, dnmt3b, LINE-1 and B1-SINE. Summer-born functional group had significantly higher expression levels of ahr, keap1, dnmt3a and dnmt3b genes versus their control group. Overwintered functional group had elevated expression levels of cyp1a2 and keap1, but no changes were found versus controls for dnmt1, LINE-1 and SINE B1. The increased expression of marker genes in dioxin-exposed voles was quite well associated with toxic process’ mechanisms – their formation and progression under exposure of several generations to low sub-toxic doses. The data obtained will contribute to the development of a biomonitoring method for assessing the initial effects of dioxin ecotoxicity.
About the Authors
A. R. Lavrenov
Lomonosov Moscow State University;
A.N. Severtsov Institute of Ecology and Evolution, Russian Academy of Sciences
Russian Federation
Russian Federation
Department of Genetics, Faculty of Biology
1–12 Leninskie gory, Moscow, 119234;
33 Leninsky Prospect, Moscow, 119071
T. A. Myshliavkina
Lomonosov Moscow State University;
A.N. Severtsov Institute of Ecology and Evolution, Russian Academy of Sciences
Russian Federation
Russian Federation
Department of Genetics, Faculty of Biology
1–12 Leninskie gory, Moscow, 119234;
33 Leninsky Prospect, Moscow, 119071
N. V. Umnova
A.N. Severtsov Institute of Ecology and Evolution, Russian Academy of Sciences
Russian Federation
Russian Federation
33 Leninsky Prospect, Moscow, 119071
A. I. Kim
Lomonosov Moscow State University;
Shenzhen MSU–BIT university, International University Park Road
Russian Federation
Russian Federation
Department of Genetics, Faculty of Biology
1–12 Leninskie gory, Moscow, 119234;
Dayun New Town, Longgang District, Shenzhen, Guangdong Province, P.R., 518172, China
V. S. Roumak
Lomonosov Moscow State University;
A.N. Severtsov Institute of Ecology and Evolution, Russian Academy of Sciences
Russian Federation
Russian Federation
Department of Genetics, Faculty of Biology
1–12 Leninskie gory, Moscow, 119234;
33 Leninsky Prospect, Moscow, 119071
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For citations:
Lavrenov A.R., Myshliavkina T.A., Umnova N.V., Kim A.I., Roumak V.S. Peculiarity of marker genes’ expression in bank voles Clethrionomys glareolus characterizing ecotoxicity effects of the territory contaminated with dioxins. Vestnik Moskovskogo universiteta. Seriya 16. Biologiya. 2023;78(2):86-94. (In Russ.) https://doi.org/10.55959/MSU0137-0952-16-78-2-6
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