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Moskaliuk VS, Kozhemyakina RV, Khomenko TM, Volcho KP, Salakhutdinov NF, Kulikov AV, Naumenko VS, Kulikova EA. Key Enzymes of the Serotonergic System - Tryptophan Hydroxylase 2 and Monoamine Oxidase A - In the Brain of Rats Selectively Bred for a Reaction toward Humans: Effects of Benzopentathiepin TC-2153. BIOCHEMISTRY. BIOKHIMIIA 2024; 89:1109-1121. [PMID: 38981704 DOI: 10.1134/s0006297924060105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2024] [Revised: 03/25/2024] [Accepted: 03/27/2024] [Indexed: 07/11/2024]
Abstract
At the Institute of Cytology and Genetics (Novosibirsk, Russia) for over 85 generations, gray rats have been selected for high aggression toward humans (aggressive rats) or its complete absence (tame rats). Aggressive rats are an interesting model for studying fear-induced aggression. Benzopentathiepin TC-2153 exerts an antiaggressive effect on aggressive rats and affects the serotonergic system: an important regulator of aggression. The aim of this study was to investigate effects of TC-2153 on key serotonergic-system enzymes - tryptophan hydroxylase 2 (TPH2) and monoamine oxidase A (MAOA) - in the brain of aggressive and tame rats. Either TC-2153 (10 or 20 mg/kg) or vehicle was administered once intraperitoneally to aggressive and tame male rats. TPH2 and MAOA enzymatic activities and mRNA and protein levels were assessed. The selection for high aggression resulted in upregulation of Tph2 mRNA in the midbrain, of the TPH2 protein in the hippocampus, and of proteins TPH2 and MAOA in the hypothalamus, as compared to tame rats. MAO enzymatic activity was higher in the midbrain and hippocampus of aggressive rats while TPH2 activity did not differ between the strains. The single TC-2153 administration decreased TPH2 and MAO activity in the hypothalamus and midbrain, respectively. The drug affected MAOA protein levels in the hypothalamus: upregulated them in aggressive rats and downregulated them in tame ones. Thus, this study shows profound differences in the expression and activity of key serotonergic system enzymes in the brain of rats selectively bred for either highly aggressive behavior toward humans or its absence, and the effects of benzopentathiepin TC-2153 on these enzymes may point to mechanisms of its antiaggressive action.
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Affiliation(s)
- Vitalii S Moskaliuk
- Institute of Cytology and Genetics, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, 630090, Russia.
| | - Rimma V Kozhemyakina
- Institute of Cytology and Genetics, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, 630090, Russia
| | - Tatyana M Khomenko
- N. N. Vorozhtsov Novosibirsk Institute of Organic Chemistry, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, 630090, Russia
| | - Konstantin P Volcho
- N. N. Vorozhtsov Novosibirsk Institute of Organic Chemistry, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, 630090, Russia
| | - Nariman F Salakhutdinov
- N. N. Vorozhtsov Novosibirsk Institute of Organic Chemistry, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, 630090, Russia
| | - Alexander V Kulikov
- Institute of Cytology and Genetics, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, 630090, Russia
| | - Vladimir S Naumenko
- Institute of Cytology and Genetics, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, 630090, Russia
| | - Elizabeth A Kulikova
- Institute of Cytology and Genetics, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, 630090, Russia
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Chadaeva IV, Filonov SV, Zolotareva KA, Khandaev BM, Ershov NI, Podkolodnyy NL, Kozhemyakina RV, Rasskazov DA, Bogomolov AG, Kondratyuk EY, Klimova NV, Shikhevich SG, Ryazanova MA, Fedoseeva LA, Redina ОЕ, Kozhevnikova OS, Stefanova NA, Kolosova NG, Markel AL, Ponomarenko MP, Oshchepkov DY. RatDEGdb: a knowledge base of differentially expressed genes in the rat as a model object in biomedical research. Vavilovskii Zhurnal Genet Selektsii 2023; 27:794-806. [PMID: 38213701 PMCID: PMC10777291 DOI: 10.18699/vjgb-23-92] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2023] [Revised: 09/11/2023] [Accepted: 09/15/2023] [Indexed: 01/13/2024] Open
Abstract
The animal models used in biomedical research cover virtually every human disease. RatDEGdb, a knowledge base of the differentially expressed genes (DEGs) of the rat as a model object in biomedical research is a collection of published data on gene expression in rat strains simulating arterial hypertension, age-related diseases, psychopathological conditions and other human afflictions. The current release contains information on 25,101 DEGs representing 14,320 unique rat genes that change transcription levels in 21 tissues of 10 genetic rat strains used as models of 11 human diseases based on 45 original scientific papers. RatDEGdb is novel in that, unlike any other biomedical database, it offers the manually curated annotations of DEGs in model rats with the use of independent clinical data on equal changes in the expression of homologous genes revealed in people with pathologies. The rat DEGs put in RatDEGdb were annotated with equal changes in the expression of their human homologs in affected people. In its current release, RatDEGdb contains 94,873 such annotations for 321 human genes in 836 diseases based on 959 original scientific papers found in the current PubMed. RatDEGdb may be interesting first of all to human geneticists, molecular biologists, clinical physicians, genetic advisors as well as experts in biopharmaceutics, bioinformatics and personalized genomics. RatDEGdb is publicly available at https://www.sysbio.ru/RatDEGdb.
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Affiliation(s)
- I V Chadaeva
- Institute of Cytology and Genetics of the Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia
| | - S V Filonov
- Institute of Cytology and Genetics of the Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia Novosibirsk State University, Novosibirsk, Russia
| | - K A Zolotareva
- Institute of Cytology and Genetics of the Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia
| | - B M Khandaev
- Institute of Cytology and Genetics of the Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia
| | - N I Ershov
- Institute of Cytology and Genetics of the Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia
| | - N L Podkolodnyy
- Institute of Cytology and Genetics of the Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia Novosibirsk State University, Novosibirsk, Russia
| | - R V Kozhemyakina
- Institute of Cytology and Genetics of the Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia
| | - D A Rasskazov
- Institute of Cytology and Genetics of the Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia
| | - A G Bogomolov
- Institute of Cytology and Genetics of the Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia
| | - E Yu Kondratyuk
- Institute of Cytology and Genetics of the Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia Siberian Federal Scientific Centre of Agro-BioTechnologies of the Russian Academy of Sciences, Krasnoobsk, Novosibirsk region, Russia
| | - N V Klimova
- Institute of Cytology and Genetics of the Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia
| | - S G Shikhevich
- Institute of Cytology and Genetics of the Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia
| | - M A Ryazanova
- Institute of Cytology and Genetics of the Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia
| | - L A Fedoseeva
- Institute of Cytology and Genetics of the Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia
| | - О Е Redina
- Institute of Cytology and Genetics of the Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia
| | - O S Kozhevnikova
- Institute of Cytology and Genetics of the Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia
| | - N A Stefanova
- Institute of Cytology and Genetics of the Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia
| | - N G Kolosova
- Institute of Cytology and Genetics of the Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia
| | - A L Markel
- Institute of Cytology and Genetics of the Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia Novosibirsk State University, Novosibirsk, Russia
| | - M P Ponomarenko
- Institute of Cytology and Genetics of the Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia
| | - D Yu Oshchepkov
- Institute of Cytology and Genetics of the Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia
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Moskaliuk VS, Kozhemyakina RV, Khomenko TM, Volcho KP, Salakhutdinov NF, Kulikov AV, Naumenko VS, Kulikova EA. On Associations between Fear-Induced Aggression, Bdnf Transcripts, and Serotonin Receptors in the Brains of Norway Rats: An Influence of Antiaggressive Drug TC-2153. Int J Mol Sci 2023; 24:ijms24020983. [PMID: 36674499 PMCID: PMC9867021 DOI: 10.3390/ijms24020983] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2022] [Revised: 12/31/2022] [Accepted: 01/02/2023] [Indexed: 01/07/2023] Open
Abstract
The Bdnf (brain-derived neurotrophic factor) gene contains eight regulatory exons (I-VIII) alternatively spliced to the protein-coding exon IX. Only exons I, II, IV, and VI are relatively well studied. The BDNF system and brain serotonergic system are tightly interconnected and associated with aggression. The benzopentathiepine TC-2153 affects both systems and exerts antiaggressive action. Our aim was to evaluate the effects of TC-2153 on the Bdnf exons I-IX's expressions and serotonin receptors' mRNA levels in the brain of rats featuring high aggression toward humans (aggressive) or its absence (tame). Aggressive and tame adult male rats were treated once with vehicle or 10 or 20 mg/kg of TC-2153. mRNA was quantified in the cortex, hippocampus, hypothalamus, and midbrain with real-time PCR. Selective breeding for high aggression or its absence affected the serotonin receptors' and Bdnf exons' transcripts differentially, depending on the genotype (strain) and brain region. TC-2153 had comprehensive effects on the Bdnf exons' expressions. The main trend was downregulation in the hypothalamus and midbrain. TC-2153 increased 5-HT1B receptor hypothalamusc mRNA expression. For the first time, an influence of TC-2153 on the expressions of Bdnf regulatory exons and the 5-HT1B receptor was shown, as was an association between Bdnf regulatory exons and fear-induced aggression involving genetic predisposition.
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Affiliation(s)
- Vitalii S. Moskaliuk
- Institute of Cytology and Genetics, Siberian Branch of Russian Academy of Sciences (SB RAS), 10 Akad. Lavrentyeva Ave., 630090 Novosibirsk, Russia
| | - Rimma V. Kozhemyakina
- Institute of Cytology and Genetics, Siberian Branch of Russian Academy of Sciences (SB RAS), 10 Akad. Lavrentyeva Ave., 630090 Novosibirsk, Russia
| | - Tatyana M. Khomenko
- N.N. Vorozhtsov Novosibirsk Institute of Organic Chemistry, SB RAS, 9 Akad. Lavrentieva Ave., 630090 Novosibirsk, Russia
| | - Konstantin P. Volcho
- N.N. Vorozhtsov Novosibirsk Institute of Organic Chemistry, SB RAS, 9 Akad. Lavrentieva Ave., 630090 Novosibirsk, Russia
| | - Nariman F. Salakhutdinov
- N.N. Vorozhtsov Novosibirsk Institute of Organic Chemistry, SB RAS, 9 Akad. Lavrentieva Ave., 630090 Novosibirsk, Russia
| | - Alexander V. Kulikov
- Institute of Cytology and Genetics, Siberian Branch of Russian Academy of Sciences (SB RAS), 10 Akad. Lavrentyeva Ave., 630090 Novosibirsk, Russia
| | - Vladimir S. Naumenko
- Institute of Cytology and Genetics, Siberian Branch of Russian Academy of Sciences (SB RAS), 10 Akad. Lavrentyeva Ave., 630090 Novosibirsk, Russia
| | - Elizabeth A. Kulikova
- Institute of Cytology and Genetics, Siberian Branch of Russian Academy of Sciences (SB RAS), 10 Akad. Lavrentyeva Ave., 630090 Novosibirsk, Russia
- Correspondence:
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Moskaliuk VS, Kozhemyakina RV, Bazovkina DV, Terenina E, Khomenko TM, Volcho KP, Salakhutdinov NF, Kulikov AV, Naumenko VS, Kulikova E. On an association between fear-induced aggression and striatal-enriched protein tyrosine phosphatase (STEP) in the brain of Norway rats. Pharmacotherapy 2022; 147:112667. [DOI: 10.1016/j.biopha.2022.112667] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2021] [Revised: 01/14/2022] [Accepted: 01/24/2022] [Indexed: 11/28/2022]
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Klimova NV, Chadaeva IV, Shichevich SG, Kozhemyakina RV. Differential expression of 10 genes in the hypothalamus of two generations of rats selected for a reaction to humans. Vavilovskii Zhurnal Genet Selektsii 2022; 25:208-215. [PMID: 35083397 PMCID: PMC8698098 DOI: 10.18699/vj21.50-o] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2020] [Revised: 10/31/2020] [Accepted: 11/03/2020] [Indexed: 11/19/2022] Open
Abstract
Individual behavioral differences are due to an interaction of the genotype and the environment. Phenotypic manifestation of aggressive behavior depends on the coordinated expression of gene ensembles. Nonetheless,
the identification of these genes and of combinations of their mutual influence on expression remains a difficult
task. Using animal models of aggressive behavior (gray rats that were selected for a reaction to humans; tame and
aggressive rat strains), we evaluated the expression of 10 genes potentially associated with aggressiveness according
to the literature: Cacna1b, Cacna2d3, Drd2, Egr1, Gad2, Gria2, Mapk1, Nos1, Pomc, and Syn1. To identify the genes most
important for the manifestation of aggressiveness, we analyzed the expression of these genes in two generations of
rats: 88th and 90th. Assessment of gene expression levels was carried out by real-time PCR in the hypothalamus of
tame and aggressive rats. This analysis confirmed that 4 out of the 10 genes differ in expression levels between aggressive rats and tame rats in both generations. Specifically, it was shown that the expression of the Cacna1b, Drd2,
Egr1, and Gad2 genes does not differ between the two generations (88th vs 90th) within each strain, but significantly
differs between the strains: in the tame rats of both generations, the expression levels of these genes are significantly
lower as compared to those in the aggressive rats. Therefore, these genes hold promise for further studies on behavioral characteristics. Thus, we confirmed polygenic causes of phenotypic manifestation of aggressive reactions.
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Affiliation(s)
- N V Klimova
- Institute of Cytology and Genetics of Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia
| | - I V Chadaeva
- Institute of Cytology and Genetics of Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia
| | - S G Shichevich
- Institute of Cytology and Genetics of Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia
| | - R V Kozhemyakina
- Institute of Cytology and Genetics of Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia
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Genetically defined fear-induced aggression: Focus on BDNF and its receptors. Behav Brain Res 2018; 343:102-110. [PMID: 29425916 DOI: 10.1016/j.bbr.2018.01.034] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2017] [Revised: 01/30/2018] [Accepted: 01/31/2018] [Indexed: 12/19/2022]
Abstract
Brain-derived neurotrophic factor (BDNF), its precursor proBDNF, BDNF pro-peptide, BDNF mRNA levels, as well as TrkB and p75NTR receptors mRNA and protein levels, were studied in the brain of rats, selectively bred for more than 85 generations for either the high level or the lack of fear-induced aggressive behavior. Furthermore, we have found that rats of aggressive strain demonstrated both high level of aggression toward humans and increased amplitude of acoustic startle response compared to rats selectively bred for the lack of fear-induced aggression. Significant increase in the BDNF mRNA, mature BDNF and proBDNF protein levels in the raphe nuclei (RN), hippocampus (Hc), nucleus accumbens (NAcc), amygdala, striatum and hypothalamus (Ht) of aggressive rats was revealed. The BDNF/proBDNF ratio was significantly reduced in the Hc and NAcc of highly aggressive rats suggesting prevalence of the proBDNF in these structures. In the Hc and frontal cortex (FC) of aggressive rats, the level of the full-length TrkB (TrkB-FL) receptor form was decreased, whereas the truncated TrkB (TrkB-T) protein level was increased in the RN, FC, substantia nigra and Ht. The TrkB-FL/TrkB-T ratio was significantly decreased in highly aggressive rats suggesting TrkB-T is predominant in highly aggressive rats. The p75NTR expression was slightly changed in majority of studied brain structures of aggressive rats. The data indicate the BDNF system in the brain of aggressive and nonaggressive animals is extremely different at all levels, from transcription to reception, suggesting significant role of BDNF system in the development of highly aggressive phenotype.
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Ilchibaeva TV, Tsybko AS, Kozhemyakina RV, Konoshenko MY, Popova NK, Naumenko VS. The relationship between different types of genetically defined aggressive behavior. J ETHOL 2016. [DOI: 10.1007/s10164-016-0493-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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Idova G, Alperina E, Plyusnina I, Gevorgyan M, Zhukova E, Konoshenko M, Kozhemyakina R, Shui-Wu W. Immune reactivity in rats selected for the enhancement or elimination of aggressiveness towards humans. Neurosci Lett 2015; 609:103-8. [PMID: 26475956 DOI: 10.1016/j.neulet.2015.10.027] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2015] [Revised: 09/22/2015] [Accepted: 10/09/2015] [Indexed: 11/15/2022]
Abstract
This study analyzes immune reactivity in two lines of rats selected for the enhancement or elimination of aggressiveness toward humans. Compared to nonaggressive line, aggressive rats showed increased blood ratio of CD4(+) and CD8(+)T lymphocytes, monocyte chemoattractant protein (MCP)-1 level both before and after immunization with sheep red blood cells (SRBC), enhanced IgM-immune response, as well as decreased level of interleukin (IL)-1α before immunization. However, antigen administration produced IL-1α increase in aggressive rats and its decrease in nonaggressive rats compared to non-immunized rats of the same lines. In addition, line-dependent alterations of T lymphocyte distribution in response to immune activation have been found only in the spleen. It is suggested that genetic differences in aggressive behavior may contribute to differences in immune function.
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Affiliation(s)
- Galina Idova
- Federal State Budgetary Scientific Institution "Scientific Research Institute of Physiology and Basic Medicine", Timakova Street, 4, Novosibirsk, Russia; Novosibirsk State University, Pirogova Street, 2, 630090 Novosibirsk, Russia.
| | - Elizaveta Alperina
- Federal State Budgetary Scientific Institution "Scientific Research Institute of Physiology and Basic Medicine", Timakova Street, 4, Novosibirsk, Russia
| | - Irina Plyusnina
- Federal Research Center "Institute of Cytology and Genetics", Siberian Branch of the Russian Academy of Sciences, Lavrentyev Avenue, 10, 630090 Novosibirsk, Russia; Novosibirsk State University, Pirogova Street, 2, 630090 Novosibirsk, Russia
| | - Margarita Gevorgyan
- Federal State Budgetary Scientific Institution "Scientific Research Institute of Physiology and Basic Medicine", Timakova Street, 4, Novosibirsk, Russia
| | - Elena Zhukova
- Federal State Budgetary Scientific Institution "Scientific Research Institute of Physiology and Basic Medicine", Timakova Street, 4, Novosibirsk, Russia
| | - Maria Konoshenko
- Novosibirsk State University, Pirogova Street, 2, 630090 Novosibirsk, Russia
| | - Rimma Kozhemyakina
- Federal Research Center "Institute of Cytology and Genetics", Siberian Branch of the Russian Academy of Sciences, Lavrentyev Avenue, 10, 630090 Novosibirsk, Russia; Novosibirsk State University, Pirogova Street, 2, 630090 Novosibirsk, Russia
| | - Wang Shui-Wu
- College of Medicine, Chang-Gung University, N. 259, Wen-Hwa1st Road, Kwei-Shan, Taoyuan City 333, Taiwan, ROC
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Ilchibaeva TV, Kondaurova EM, Tsybko AS, Kozhemyakina RV, Popova NK, Naumenko VS. Brain-derived neurotrophic factor (BDNF) and its precursor (proBDNF) in genetically defined fear-induced aggression. Behav Brain Res 2015; 290:45-50. [PMID: 25934485 DOI: 10.1016/j.bbr.2015.04.041] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2015] [Revised: 04/21/2015] [Accepted: 04/23/2015] [Indexed: 10/23/2022]
Abstract
The brain-derived neurotrophic factor (BDNF), its precursor (proBDNF) and BDNF mRNA levels were studied in the brain of wild rats selectively bred for more than 70 generations for either high level or for the lack of affective aggressiveness towards man. Significant increase of BDNF mRNA level in the frontal cortex and increase of BDNF level in the hippocampus of aggressive rats was revealed. In the midbrain and hippocampus of aggressive rats proBDNF level was increased, whereas BDNF/proBDNF ratio was reduced suggesting the prevalence and increased influence of proBDNF in highly aggressive rats. In the frontal cortex, proBDNF level in aggressive rats was decreased. Thus, considerable structure-specific differences in BDNF and proBDNF levels as well as in BDNF gene expression between highly aggressive and nonaggressive rats were shown. The data suggested the implication of BDNF and its precursor proBDNF in the mechanism of aggressiveness and in the creation of either aggressive or nonaggressive phenotype.
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Affiliation(s)
- Tatiana V Ilchibaeva
- Institute of Cytology and Genetics, Siberian Division of the Russian Academy of Science, Novosibirsk, Russia
| | - Elena M Kondaurova
- Institute of Cytology and Genetics, Siberian Division of the Russian Academy of Science, Novosibirsk, Russia; Novosibirsk State University, Novosibirsk, Russia
| | - Anton S Tsybko
- Institute of Cytology and Genetics, Siberian Division of the Russian Academy of Science, Novosibirsk, Russia
| | - Rimma V Kozhemyakina
- Institute of Cytology and Genetics, Siberian Division of the Russian Academy of Science, Novosibirsk, Russia
| | - Nina K Popova
- Institute of Cytology and Genetics, Siberian Division of the Russian Academy of Science, Novosibirsk, Russia; Novosibirsk State University, Novosibirsk, Russia
| | - Vladimir S Naumenko
- Institute of Cytology and Genetics, Siberian Division of the Russian Academy of Science, Novosibirsk, Russia; Novosibirsk State University, Novosibirsk, Russia.
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