Molecular characterization of two phytoplasma strains associated with X disease in peach in Canada
Bibliographic record
Abstract
Peach and nectarine trees exhibiting typical peach X disease symptoms including leaf yellowing, necrosis, and vein yellowing were observed during a survey in commercial orchards in Essex (Southern Ontario, Canada). A total of 1,828 plants were inspected and 2.8% of them resulted symptomatic. Specific nested-PCR assays on 16S rDNA allow phytoplasma identification on samples from 51 symptomatic trees. Twelve samples from peach and nectarine were selected for RFLP and sequence analyses; results indicated the presence in eleven samples of CX-related phytoplasmas belonging to 16SrIII-A subgroup, while in one sample a profile indicating possible mixed infection or interoperon heterogeneity was observed. Cloning of the amplicons confirmed the presence of two RFLP differentiable sequences. Sequence analyses of the ribosomal protein gene from the same sample indicate that it clusters with phytoplasmas in ribosomal protein subgroup rpIII-A.
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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 | 0.001 |
| 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".