Bivalent formation in hybrids 2R(2D)xR. a, c, d bivalent formation (sun) b bivalent lacking c The distribution of meiocytes with different numbers of bivalent chromosomes. Rye chromosomes labelled red (a) and green (b), centromeres labelled red (b). Scale bar: 10 μm.

  Part of: Loginova DB, Zhuravleva AA, Silkova OG (2020) Random chromosome distribution in the first meiosis of F1 disomic substitution line 2R(2D) x rye hybrids (ABDR, 4× = 28) occurs without bipolar spindle assembly. Comparative Cytogenetics 14(4): 453-482.