Table I.
Dominance and complementation tests for the ethylene-sensitivity trait among mutant and wild-type soybean lines
| Soybean Line | Hypocotyl Length |
|---|---|
| cm | |
| Parents | |
| Hobbit 87 | 2.4 ± 0.16 |
| T119N54 (etr1-1) | 13.3 ± 0.26 |
| A90-312022 | 2.2 ± 0.05 |
| T10N5/T10N6/T15N23 (“etr2-1 lines”) | 3.8 ± 0.05 |
| T58N5 | 3.4 ± 0.09 |
| F1 of crosses to wild type | |
| Hobbit 87 × T119N54 | 8.7 ± 0.32 |
| Different from Hobbit 87 and T119 (P < 0.001); semidominant | |
| A90-312022 × etr-1 lines | 2.3 ± 0.04 |
| Not different from A90-312022 (P > 0.05); recessive | |
| Different from etr2-1 lines (P < 0.001) | |
| A90-312022 × T58N5 | 2.8 ± 0.11 |
| Different from A90-312022 and T58N5 (P < 0.001); semidominant | |
| F1 for complementation tests | |
| T10N5 × T10N6 | 2.8 ± 0.15 |
| Different from parents (P < 0.001) | |
| T10N5 × T15N23 | 3.4 ± 0.11 |
| Not different from parents (P > 0.05) | |
| T10N6 × T15N23 | 4.0 ± 0.20 |
| Not different from parents (P < 0.05 and P = 0.049) | |
| T119N54 × T15N23 | 8.5 ± 0.67 |
| Different from parents (P < 0.001) (F2 data in Table II) | |
| T58N5 × etr2-1 lines | 3.2 ± 0.10 |
| Different from etr2-1 lines (P < 0.001) | |
| Not different from T58N5 (P > 0.05) | |
Seedlings were germinated in darkness for 6 d in 18 μL L−1 ethylene. For each designated cross, combined data for progeny of multiple reciprocal crosses are presented. Results of Student's t tests for similarity to parent lines (data at top of table) are presented below cross data, accept similarity if P > 0.05. Values are means ± se.