Partial Resistance to White Mold in a Transgenic Soybean Line
Bibliographic record
Abstract
Oxalic acid is an important pathogenic factor for the fungus Sclerotinia sclerotiorum (Lib.) de Bary. An oxalate degrading enzyme, oxalate oxidase (OxO), in transgenic soybean [Glycine max (L.) Merr.] has reduced pathogen growth in indoor seedling studies. The objective of this study was to characterize the response of this OxO transgenic soybean line to white mold under field conditions and also to characterize the agronomic performance of this transgenic line under noninfected conditions. The transgenic line 80(30)‐1contains the wheat germin gene gf‐2.8 that codes for OxO. This line was compared with 80(30)‐9, a sib line which does not contain the gene, as well as resistant and susceptible cultivars. Field tests were conducted at three sites infested with white mold in Ontario and Quebec across 3 yr. The Sainte‐Foy site provided the highest infection potential and the transgenic line had a disease severity index (DSI) of 7 compared with 80(30)‐9 with a DSI of 46, across 3 yr. Across 2 yr, resistant commercial cultivars had an average DSI of 2 and susceptible cultivars a DSI of 46. Stem inoculations were performed in the field at Elora and the transgenic line was significantly less infected compared with 80(30)‐9. In noninfested trials, no significant differences were found between the transgenic, the negative sib, and the parental lines for seed yield, maturity, seed weight, or seed protein and oil content. The transgene provided white mold resistance equivalent to the best commercial cultivars in a white mold susceptible background.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.001 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".