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Analysis of Structural Variation in Flax (Linum usitatissimum L.) Genomes

  • MOLECULAR BIOPHYSICS
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Abstract

Two types of structural variation have been analyzed in 100 well-sequenced flax genomes: gene presence–absence, and gene copy number. Individual flax varieties bear deletions of DNA sequences, insertions of new sequences, and sequence amplification in comparison to the reference genome. The functional annotation of the corresponding regions in the reference genome and new sequences shows that they encode proteins involved in plant response to biotic and abiotic stresses, energy metabolism, viral and transposon activity, and the formation of cell membranes. Our results suggest that these functions are indicative of the adaptation of varieties to regional growing conditions by means of structural variation.

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Funding

This study was supported by the Russian Science Foundation, project 19-16-00030.

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Authors and Affiliations

  1. Peter the Great St. Petersburg Polytechnic University, 195251, St. Petersburg, Russia

    M. A. Duk, A. A. Kanapin, A. A. Samsonova & M. G. Samsonova

  2. Flax Institute, 172002, Torzhok, Tver oblast, Russia

    T. A. Rozhmina

Authors
  1. M. A. Duk
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  2. A. A. Kanapin
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  3. A. A. Samsonova
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  4. T. A. Rozhmina
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  5. M. G. Samsonova
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Corresponding author

Correspondence to A. A. Samsonova.

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Conflict of interest. The authors declare that they have no conflicts of interest.

Statement on the welfare of humans or animals. This article does not contain any studies involving humans or animals performed by any of the authors.

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Translated by V. Gulevich

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Duk, M., Kanapin, A., Samsonova, A. et al. Analysis of Structural Variation in Flax (Linum usitatissimum L.) Genomes. BIOPHYSICS 67, 175–179 (2022). https://doi.org/10.1134/S0006350922020038

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  • DOI: https://doi.org/10.1134/S0006350922020038

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