A molecular marker for, and the organization of, a cluster of loose smut resistance genes in oat
Bibliographic record
Abstract
Loose smut (Ustilago avenae) resistance breeding is hampered by the many distinct smut races, and the different, poorly characterized resistance genes. Three pathotypes (A13, A60, A617) represent the most common races present in the prairie regions of western Canada (Kibite et al. 2000). Markers linked to a group of smut resistance genes located on linkage group 14 (Kanota/ Ogle) have been developed (Eckstein et al. 2002). One co-dominant SCAR marker was used to study the relationship between the marker and the three resistance genes. Molecular markers and plant populations used were described in Eckstein et al. (2002). Another population (OT369/89Ab4088) segregating for the three genes was also evaluated. All lines were inoculated with separate isolates of A13, A60, and A617 using a vacuum protocol, and grown over several locations and years in western Canada. SCAR marker Ua300co (co-dominant) was linked (~ 5 cM) to a resistance gene specific for pathotype A13. Two other pathotype specific genes clustered on the same side of the marker at genetic distances of 8 cM (A617) and 18 cM (A60). The genes are linked in coupling and are likely often inherited as a group. Attempts to find a flanking marker for the cluster are in progress. Eckstein et al. 2002. In: American Oat Workers Conference, Wilmington, NC, USA, May 5-7, 2002. pp33; Kibite et al. 2000. In: Cross, R.J. (ed). Proceedings of the 6th International Oat Conference, Lincoln, NZ. November 13-16 2000. pp298-301.
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How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| 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) | 0.000 | 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 teacher head, 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".