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Some features of meiosis key events in rye and its synaptic mutants

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Abstract

The Peterhof Collection of spontaneous meiotic mutants of rye was used as a model to study the genetic control of meiosis key events in an organism with a large genome. A combination of methods, which included fluorescence in situ DNA-DNA hybridization, sequencing of recombinogenic proteins, and immunocytochemical analysis of meiosis proteins, clearly showed that mutation sy1 affects recombination events, asynapsis in mutant sy9 is connected with defects of the assembly of synaptonemal complex axial cores, and that synapsis defects in mutant sy10 are coupled with the presence of protein Zyp1 in the core region. The assembly of proteins Asy1 and Zyp1 on the axes of meiotic chromosomes was shown to occur separately, which is a specific feature of rye, as compared to arabidopsis.

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Authors and Affiliations

  1. Vavilov Institute of General Genetics (St. Petersburg Branch), Russian Academy of Sciences, St. Petersburg, 199034, Russia

    E. I. Mikhailova & A. V. Lovtsyus

  2. Department of Genetics and Selection, St. Petersburg State University, St. Petersburg, 199034, Russia

    E. I. Mikhailova & S. P. Sosnikhina

Authors
  1. E. I. Mikhailova
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  2. A. V. Lovtsyus
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  3. S. P. Sosnikhina
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Correspondence to E. I. Mikhailova.

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Original Russian Text © E.I. Mikhailova, A.V. Lovtsyus, S.P. Sosnikhina, 2010, published in Genetika, 2010, Vol. 46, No. 10, pp. 1371–1375.

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Mikhailova, E.I., Lovtsyus, A.V. & Sosnikhina, S.P. Some features of meiosis key events in rye and its synaptic mutants. Russ J Genet 46, 1210–1213 (2010). https://doi.org/10.1134/S1022795410100170

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  • DOI: https://doi.org/10.1134/S1022795410100170

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