Figure 3

Distribution of 25S rDNA FISH signals in B. hybridum root nuclei of different shapes: spherical (a–c), elongated (d–f) and rod-shaped (g–i). (a,d,g) DAPI counterstained nuclei. (b,e,h) 25S rDNA hybridisation signals (red fluorescence). (c,f,i) Superimposed images of 25S rDNA FISH signals and counterstained chromatin. (j) The model of the 35S rRNA genes distribution in metaphase chromosomes (left) and interphase nucleus (right) of B. hybridum. Nu–nucleolus. Scale bar: 5 µm.