A novel resistance against powdery mildew found in winter barley cultivars
Bibliographic record
Abstract
Abstract Barley powdery mildew caused by Blumeria graminis f. sp. hordei can be effectively controlled using genetic resistance. Moreover, specific resistances are also important for characterizing cultivars and verifying their origin, purity and authenticity. Winter barley is distinguished by several specific resistances, which are usually absent in spring barley. Besides responses caused by known genes, many cultivars showed a response suggesting the presence of an unknown resistance. Therefore, the aim of this research was firstly, to test winter barley cultivars, suspected to carry an unknown resistance gene, using a large collection of pathogen isolates for their expression of this specific response and to characterise the corresponding resistance. A set of 16 winter barley accessions originating from four gene banks was studied where each accession was represented by five single plant progenies. For resistance tests, 56 isolates of the pathogen were used. A new resistance with a proposed designation of Lu was found in all 16 selected accessions. Apart from Lu, eight well‐known Ml genes (a6, a8, a12, g, h, Lo, ra and Ru2) were postulated. Two accessions of cv. 'Borwina' originating from different gene banks were found to differ in their set of resistance genes.
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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".