Figure 2

Meiotic metaphase I of the pollen mother cell in the 1H monosomic addition line. Chromosome numbers are apparently more than 21” +1’ which is expected for the alien monosomic addition in wheat. The cell in (b) has more chromosomes than in cells in (a). Note that in both (a) and (b), chromosomes are forming mostly bivalents and they are aligned to the metaphase plates. Centromeres of the bivalents seem to be pulled to opposite poles. Bars indicate 10 μm.