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Effect of Changes in Genome Ploidy on the Mosaic Character of nptII Gene Expression in Epialleles of the Transgenic Tobacco Line Nu21

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Abstract

The influence of changes in the genome ploidy and the gene dose on the mosaic pattern of expression of the nptII gene in epialleles of the Nu21 transgenic tobacco line was evaluated. The general preservation of the expression profile of the marker gene nptII is shown (high in the Nu5 epiallele and low in the Nu6 epiallele) in heteroploid crosses of diploid transgenic plants (2n = 48) with polyploid nontransgenic plants (3n = 72, 4n = 96), as well as in self-pollination of experimentally obtained tetraploid transgenic plants of the Nu21 line (4n = 96) and in their hybrids from crossing with nontransgenic diploid plants. It has been established that the stability of expression of the nptII marker gene is influenced by the initial epigenetic status of epialleles and the direction of crossing in hybridization of tetraploid nontransgenic tobacco plants with diploid transgenic plants of the Nu21 line.

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ACKNOWLEDGMENTS

Microscopic analysis was performed at the Center for Collective Use of Microscopic Analysis of Biological Objects, Siberian Branch, Russian Academy of Sciences.

Funding

This work was performed as part of the budget project 0324-2019-0040 “Genetic Principles of Biotechnology and Bioinformatics.”

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Authors and Affiliations

  1. Federal Research Center Institute of Cytology and Genetics, Siberian Branch, Russian Academy of Sciences, 630090, Novosibirsk, Russia

    T. V. Marenkova, Y. V. Sidorchuk, V. V. Kusnetsov & E. V. Deineko

  2. National Research Tomsk State University, 634050, Tomsk, Russia

    E. V. Deineko

Authors
  1. T. V. Marenkova
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  2. Y. V. Sidorchuk
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  3. V. V. Kusnetsov
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  4. E. V. Deineko
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Correspondence to T. V. Marenkova.

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The authors declare that they have no conflict of interest. This article does not contain any studies involving animals or human participants performed by any of the authors.

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Marenkova, T.V., Sidorchuk, Y.V., Kusnetsov, V.V. et al. Effect of Changes in Genome Ploidy on the Mosaic Character of nptII Gene Expression in Epialleles of the Transgenic Tobacco Line Nu21. Russ J Genet 56, 204–212 (2020). https://doi.org/10.1134/S1022795420020088

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