Mapping Quantitative Trait Loci for Powdery Mildew Resistance in Flax (<i>Linum usitatissimum</i> L.)
Why this work is in the frame
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Bibliographic record
Abstract
ABSTRACT Powdery mildew ( Oidium lini Skoric, [PM]), an obligate biotrophic ascomycete, is a common and widespread foliar disease of flax in most flax‐growing areas of the world. In this study, we constructed a linkage map using 143 simple sequence repeat (SSR) markers and an F 2 population of 300 individuals generated from a cross between the susceptible cultivar NorMan and the resistant cultivar Linda. The F 2 –derived F 3 families were phenotyped in the field and the F 3 –derived F 4 families were phenotyped in a controlled environment growth chamber. The 15 linkage group map covered 1241 cM and was largely collinear with the previously published consensus map. Quantitative trait loci (QTL) analysis was performed and three PM resistance QTL located on LG1, 7, and 9 were identified consistently using phenotyping data from both field and growth chamber studies. These QTL explained 97% of the phenotypic variation exhibiting a mainly dominant gene action. This work represents a first step toward understanding the genetics of PM resistance in flax and map‐based cloning of candidate genes underlying the QTL.
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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 | 0.001 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.002 |
| Science and technology studies | 0.000 | 0.001 |
| Scholarly communication | 0.000 | 0.001 |
| Open science | 0.001 | 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 it