The passing of meiosis in genetically modified wheat plants obtained by Agrobacterium-mediated transformation in planta variety Zimoyarka has been investigated. It is found that transgenic forms are characterized by a higher frequency of meiotic disorders compared to non-transgenic plants. Comparative analysis of the passing of meiosis showed that in transgenic lines obtained by using strain AGLO and vector construct pBi2E the percentage of cells with disorders at the stage metaphase 1 was much lower, and meiotic index respectively higher than in the lines obtained by using strain AGLO and vector construct pBi-OAT. It is shown that the percentage of cells with impaired meiosis was the largest in transgenic plants from lines that are characterized by reduced pollen fertility and low seed productivity.
Keywords: Triticum aestivum L., Agrobacterium-mediated transformation in planta, meiosis
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