Variabilité phénétique du<i>Colletotrichum graminicola</i>du sorgho
Bibliographic record
Abstract
A comparative intraspecific study of Colletotrichum graminicola (Ces.) G.W. Wilson from sorghum (Sorghum bicolor (L.) Moench) was carried out. Thirty one isolates were used, including 29 from various sites in Burkina Faso and 2 from the American Type Culture Collection (one from sorghum of Porto Rico and the second from maize of Alabama). The analysis of physiological (radial growth on agar media, biomass production, sensitivity to benomyl) and pathogenic (virulence towards sorghum seedlings) characteristics revealed high differences between isolates for each variable. Single linkage cluster analysis showed that C. graminicola exhibits a continuous variability in Burkina Faso. Euclidean distances spread from 0.67 to 3.59 and isolates were distributed in five distinct groups at a distance of 2.20 in the phenogram. Most isolates were found in one single group. The two control isolates from the American Type Culture Collection were apart from those of Burkina Faso, but were distinct one from the other as well. Neither the year of isolation, nor the isohyet of origin, nor the inoculum source (seed or leaf) seemed to be associated with the clustering of isolates.
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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 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 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) | 0.001 | 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".