STS markers for the wheat yellow rust resistance gene<i>Yr5</i>suggest a NBS–LRR-type resistance gene cluster
Bibliographic record
Abstract
Two sequence-tagged site (STS) markers for the wheat yellow rust resistance (R) gene Yr5 have been derived through the identification and characterization of linked amplified fragment length polymorphisms (AFLPs). The sequences of the 2 AFLP markers partially overlap with one another, but belong to discrete loci: S19M93-140 completely cosegregates with Yr5, whereas S23M41-310 maps at a distance of 0.7 cM. The DNA sequence of S23M41-310 shows significant homology with the 3' end of nucleotide-binding site (NBS) - leucine-rich repeat (LRR) - type R-genes, in particular with orthologues of the rice bacterial blight R-gene Xa-I. The distinct genetic location of the 2 AFLP loci suggests that Yr5 falls within an R-gene cluster. Because neither sequence forms part of a detectable transcription product, we propose that the Yr5 R-gene cluster includes R-gene analogues and pseudogenes. A Yr5 flanking simple sequence repeat (SSR) marker has also been identified, which allows Yr5 to be effectively incorporated, along with other R-genes for yellow rust, into elite wheat genetic backgrounds, through marker-assisted selection.
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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 | 0.001 | 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 | 0.001 | 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".