Table 2.
Chromosome pairing at meiotic metaphase-I observed in PMCs and pollen fertility in the cotton desynaptic parental plants (DPPs) and their monosomics (Mo) progenies.
| Material | Mo | Chromosome number | Chromosome associations | Pollen fertility | ||||
|---|---|---|---|---|---|---|---|---|
| Total number of cells | Number of univalents |
Frequency of chromosome associations (in average per cell) |
Total number of pollen grains |
Fertility, (%) | ||||
| univalents | bivalents | |||||||
| 1609/66-DPP | 52 | 60 | 2–12 | 4.77 ± 0.48 | 23.62 ± 0.24 | 656 | 70.12 ± 1.79 | |
| 1609/66-22 | Mo55 | 51 | 22 | 1–3 | 1.45 ± 0.18 | 24.77 ± 0.09 | 466 | 93.99 ± 1.10 |
| 1609/66-4 | Mo69 | 51 | 33 | 1 | 1.00 ± 0.00 | 25.00 ± 0.00 | 499 | 98.27 ± 0.58 |
| 1063/63-13-DPP | 52 | 42 | 2–28 | 14.33 ± 0.9 | 18.83 ± 0.45 | 405 | 65.68 ± 2.36 | |
| 1063/63-133 | Mo70 | 51 | 25 | 1–3 | 1.08 ± 0.08 | 24.96 ± 0.04 | 639 | 95.15 ± 0.85 |
| 1063/63-134 | Mo71 | 51 | 24 | 1 | 1.00 ± 0.00 | 25.00 ± 0.00 | 352 | 96.02 ± 1.04 |
| 1063/63-135 | Mo72 | 51 | 21 | 1 | 1.00 ± 0.00 | 25.00 ± 0.00 | 632 | 96.87 ± 0.69 |
| 1063/63-136 | Mo73 | 51 | 30 | 1–3 | 1.47 ± 0.15 | 24.77 ± 0.08 | 612 | 98.53 ± 0.49 |
| 1570/149-3-DPP | 52 | 42 | 2–8 | 2.43 ± 0.31 | 24.79 ± 0.15 | 440 | 94.09 ± 1.12 | |
| 1570/149-318 | Mo78 | 51 | 18 | 1 | 1.00 ± 0.00 | 25.00 ± 0.00 | — | — |
| 1570/149-13-DPP | 52 | 15 | 2–6 | 2.67 ± 0.46 | 24.67 ± 0.23 | 467 | 95.29 ± 0.98 | |
| 1570/149-137 | Mo85 | 51 | 16 | 1 | 1.00 ± 0.00 | 25.00 ± 0.00 | 984 | 97.97 ± 0.45 |
| 179/2-DPP | 52 | 32 | 2–8 | 2.50 ± 0.37 | 24.75 ± 0.19 | 157–537 | 2.61 ± 1.27–91.81 ± 1.18 | |
| 179/212 | Mo87 | 51 | 20 | 1 | 1.00 ± 0.00 | 25.00 ± 0.00 | 217–693 | 40.09 ± 3.33–92.93 ± 0.97 |
| 356/8-DPP | 52 | 18 | 2 | 1.67 ± 0.18 | 25.17 ± 0.09 | 401 | 61.35 ± 2.43 | |
| 356/85 | Mo58 | 51 | 33 | 1–3 | 1.12 ± 0.08 | 24.94 ± 0.04 | 685 | 81.02 ± 1.50 |
| 356/86 | Mo59 | 51 | 24 | 1 | 1.00 ± 0.00 | 25.00 ± 0.00 | 222–1292 | 2.25 ± 1.00–70.12 ± 1.27 |
| 356/87 | Mo60 | 51 | 22 | 1 | 1.00 ± 0.00 | 25.00 ± 0.00 | 307 | 38.44 ± 2.78 |
| 356/88-unknown caryotype | — | — | — | — | — | 452 | 53.98 ± 2.34 | |
| 356/88-14 | Mo79 | 51 | 22 | 1 | 1.00 ± 0.00 | 25.00 ± 0.00 | 666 | 92.94 ± 0.99 |
| 356/88-15 | Mo80 | 51 | 20 | 1 | 1.00 ± 0.00 | 25.00 ± 0.00 | 447 | 99.78 ± 0.22 |
| 356/88-5 | Mo84 | 51 | 39 | 1–3 | 1.41 ± 0.13 | 24.79 ± 0.07 | 322 | 98.14 ± 0.75 |
| 356/88-2 | Mo91 | 51 | 19 | 1–3 | 1.11 ± 0.11 | 24.95 ± 0.05 | 65–726 | 53.85 ± 6.18–89.81 ± 1.12 |
DPP: desynaptic parental plants showed in bold-faced letters.