Table 1 Meiotic associations at metaphase I in pollen mother cells of parental species and their hybrids
From: Biosystematics studies on Elymus breviaristatus and Elymus sinosubmuticus (Poaceae: Triticeae)
Species or hybrids | 2n | No. of cells observed | Chromosome association | Chiasmata/cell | c-value | |||||
|---|---|---|---|---|---|---|---|---|---|---|
I | II (Total) | II (Ring) | II (Rod) | III | IV | |||||
Elymus breviaristatus | 42 | 50 | - | 21.00 | 20.74 | 0.26 | - | - | 41.74 | 0.99 |
- | (21) | (19–21) | (0–2) | - | - |  |  | |||
Elymus sinosubmuticus | 42 | 50 | 0.08 | 20.92 | 20.72 | 0.20 | - | - | 41.64 | 0.99 |
(0–2) | (20–21) | (19–21) | (0–2) | - | - |  |  | |||
E. breviaristatus × E. sinosubmuticus | 42 | 50 | 0.50 | 20.62 | 16.88 | 3.74 | 0.06 | 0.02 | 37.70 | 0.89 |
(0–2) | (19–21) | (13–19) | (1–8) | (0–1) | (0–1) |  |  | |||