Mapping of a covered smut resistance gene in barley (<i>Hordeum vulgare</i>)
Bibliographic record
Abstract
Covered smut of barley, caused by Ustilago hordei, is a seed-borne disease. Economic loss is due to decreased yield and to contamination of healthy grains with black teliospores. Molecular marker-assisted selection for covered smut is desirable, because traditional screening in the greenhouse and field is time consuming, expensive, and unreliable. The randomly amplified polymorphic DNA (RAPD) marker OPJ10450, tightly linked to covered smut resistance in the barley line Q21861, was mapped to the short arm of chromosome 5 (1H) near the restrict fragment length polymorphic marker Act8A in the 'Harrington'/TR306 mapping population. The covered smut resistance gene in Q21861 was given the provisional designation of Ruhq. Sequence tagged site marker aHor2 and RAPD marker OPO6780 on the short arm of chromosome 5 (1H) were closely linked to Ruhq. The amplified fragment length polymorphic marker E-AAA/M-CCC265 was also linked to Ruhq. These markers will be useful for marker-assisted selection for covered smut resistance in barley.
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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".