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Table 2 Meiotic chromosome behavior in S4 and S14 generations of the synthetic allotetraploid Cucumis ×hytivus

From: Oligo-painting and GISH reveal meiotic chromosome biases and increased meiotic stability in synthetic allotetraploid Cucumis ×hytivus with dysploid parental karyotypes

Plant group No. of PMCs at MI No. (%) of PMCs with 19 homologous bivalents No. (%) of PMCs with univalents No. (%) of PMCs with lagged bivalents No. (%) of PMCs with inter-genomic pairings No. of PMCs at AI No. (%) of PMCs with chromosome lagging
C H C H C H
S4 143 49 (34.3) 34 (23.8) 93 (65.0) 22 (15.4) 105 (73.4) 35 (24.5) 95 26 (27.4) 75 (79.0)
S14 131 98 (74.8)** 9 (6.9)** 31 (23.7)* 6 (4.6)** 68 (51.9)** 13 (9.9)** 113 11 (9.7)* 63 (55.8)*
  1. MI metaphase I, AI anaphase I, PMC pollen mother cell, C C-subgenome, H H-subgenome; statistical test for comparisons with S4 (t-test): *, p < 0.05; **, p < 0.01