Phenotypic, Biochemical and Molecular Diversity of Phoma lingam Fungal Isolates Collected from Saskatchewan, Canada
Bibliographic record
Abstract
The population of Phoma lingam associated with blackleg disease of canola (Brassica napus) is highly polymorphic, and infect various Brassicaceae species, including Thlaspi arvense (stinkweed). In order to determine the population composition and pathogenicity of P. lingam infecting T. arvense, 18 isolates recovered from T. arvense (designated 'Thl' isolates) from different crop fields of Saskatchewan were compared with an aggressive (IBCN 2) and eleven less/non-aggressive reference strains. No common morphological, biochemical and pathogenic characteristics were found between 'Thl' isolates and IBCN 2 strain. DNA fingerprinting and phylogenetic analysis of ITS-rRNA gene sequences revealed that the 'Thl' P. lingam population of Saskatchewan is highly heterogeneous and comprised of at least eight genotypes. Over 50 percentage of 'Thl' isolates clustered with different less/non aggressive reference strains belonging to L. biglobosa. Interestingly, a group of' Thl' isolates clustered with an aggressive reference strain, IBCN 2. Therefore, regular monitoring is required to determine if the 'Thl' P. lingam population of western Canadian provinces is migrating from non-aggressive toward aggressive state.
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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 | 0.001 | 0.002 |
| Science and technology studies | 0.001 | 0.000 |
| Scholarly communication | 0.001 | 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".