<i>Populus</i> genotypes differ in infection by, and systemic spread of, <i>Poplar mosaic virus</i>
Bibliographic record
Abstract
The spatial and temporal dynamics of Poplar mosaic virus (PopMV) infection were investigated using four different genotypes of Populus . Four Populus clones were vegetatively propagated under sterile conditions and used as hosts for PopMV infection in controlled growth‐room experiments. The presence of PopMV RNA was assessed using reverse transcriptase PCR. The presence of infectious PopMV particles was assessed by the ability of extracts from Populus leaves to generate PopMV symptoms on the propagation host, Nicotiana megalosiphon . Neither PopMV RNA nor infectious particles accumulated to detectable levels in one of the four clones (CT6009), suggesting that this clone had preformed resistance to PopMV. PopMV RNA and infectious particles were restricted to the inoculated leaf in two of the clones (AP37 and NM6), suggesting that these clones restricted either the rate of virus accumulation or the spread of PopMV itself. In contrast, PopMV systemically infected one clone (52‐226), indicating that this host was either fully susceptible, or had delayed resistance.
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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 | 0.001 |
| 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".