Table 1.
Inheritance of NOR DNA methylation in F1 hybrids
| Group | Accessions | CR DNA methylation index (%) | Relative rRNA gene copy number | CR DNA methylation index in F1 hybrids with Col | |
| Expected (%) | Experimental (%)a | ||||
| Male parent | Col | 69.8 | 1.00 | ||
| I | Bor-4 | 34.8 | 1.22 | 50.6 | 55.3 ± 1.3 (n = 7) |
| Kin-0 | 9.3 | 1.19 | 36.9 | 36.9 ± 1.5 (n = 10) | |
| Pu2-23 | 21.1 | 1.07 | 44.6 | 46.9 ± 4.1 (n = 5) | |
| Rennes-11 | 15.2 | 0.75 | 46.4 | 43.5 ± 1.5 (n = 6) | |
| Sorbo | 10.3 | 1.06 | 39.2 | 41.0 ± 2.2 (n = 5) | |
| Spr1-6 | 23.5 | 0.85 | 48.5 | 49.9 ± 2.6 (n = 6) | |
| Tamm-2 | 19.7 | 0.79 | 50.4 | 46.7 ± 3.8 (n = 5) | |
| Ts-5 | 22.1 | 1.04 | 45.5 | 41.8 ± 3.7 (n = 5) | |
| Zdr-1 | 9.3 | 0.89 | 41.3 | 37.8 ± 1.4 (n = 6) | |
| Zdr-6 | 19.9 | 1.43 | 40.4 | 43.4 ± 1.2 (n = 6) | |
| II | Ga-0 | 26.1 | 0.72 | 51.5 | 40.6 ± 1.0 (n = 6) |
| Sq-1 | 21.9 | 0.51 | 53.6 | 39.0 ± 1.1 (n = 5) | |
| III | Bay-0 | 8.1 | 0.64 | 45.2 | 68.9 ± 0.9 (n = 4) |
| CS22569 | 20.2 | 0.67 | 49.9 | 60.0 ± 1.1 (n = 5) | |
| KZ9 | 23.2 | 1.06 | 45.8 | 61.6 ± 0.9 (n = 5) | |
| Rennes-1 | 25.3 | 1.40 | 42.4 | 57.0 ± 1.4 (n = 6) | |
a Average ± standard error (n, number of individuals).