Table 1.
Meiotic behaviour of 3x A. pintoi in different meiotic phases (metaphase I, anaphase I, telophase I, prophase II, metaphase II and anaphase II) and sporad analysis
| Phase | No. of PMCs | % |
|---|---|---|
| Metaphase I | ||
| 10III | 3 | 18·75 |
| 9III + 1II + 1I | 5 | 31·25 |
| 8III + 2II + 2I | 7 | 43·75 |
| Out-of-plate chromosomes | 1 | 6·25 |
| Anaphase I | ||
| Normal (regular segregation of chromosomes) | 3 | 33·33 |
| With one laggard chromosome | 3 | 33·33 |
| With two laggard chromosomes | 2 | 22·22 |
| With five laggard chromosomes | 1 | 11·11 |
| Telophase I | ||
| Normal (all chromosomes in two nuclei) | 15 | 99·99 |
| Out-of-nucleus chromosomes | 1 | 0·01 |
| Prophase II (number of chromosomes per nucleus) | ||
| 15/15 | 17 | 58·62 |
| 14/16 | 8 | 27·58 |
| 13/17 | 1 | 3·45 |
| 18/12 | 1 | 3·45 |
| 19/11 | 2 | 6·90 |
| Metaphase II | ||
| Normal (all chromosomes in two plates) | 7 | 77·77 |
| Out-of- plate chromosome (1) | 1 | 11·11 |
| Out-of- plate chromosomes (2) | 1 | 11·11 |
| Anaphase II | ||
| Normal (all chromosomes segregate in two spindles) | 18 | 81·82 |
| With four laggard chromosomes | 1 | 4·54 |
| With two laggard chromosomes | 1 | 4·54 |
| With six poles | 2 | 9·10 |
| Sporads | ||
| Tetrads | 362 | 97·05 |
| Tetrads with two larger size microspores | 1 | 0·27 |
| Tetrads with micromicrospore | 8 | 2·14 |
| Triads | 1 | 0·27 |
| Dyads | 1 | 0·27 |