The evolutionary significance of variation in infection behavior in two species of rust fungi on their hosts and related nonhost plant species
Bibliographic record
Abstract
We explored the association between the phylogeny of 14 species of beans in the genera Phaseolus and Vigna (subtribe Phaseolinae) and the progress of infections in them caused by two pathogenic rust fungi, Uromyces appendiculatus (Pers.) Unger and Uromyces vignae Barclay. The analyses involved construction of phenograms, ordinations, and cladograms derived from the infection characteristics and their comparison to a composite of three previously published DNA phylogenies. The patterns of infection by U. vignae showed no relationship to the phylogeny of the infected plants. The course of infection by U. appendiculatus, however, displayed a significant phylogenetic component, although the defense responses of the infected plants themselves did not. These differences in phylogenetic signal between infections caused by the two fungi may reflect distinct evolutionary histories with members of the Phaseolinae, a long association for U. appendiculatus but a much more recent one for the more host-specific U. vignae.Key words: bean rust, cowpea rust, evolution, infection characteristics, Phaseolus, Vigna.
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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 | 0.002 | 0.001 |
| Science and technology studies | 0.000 | 0.001 |
| 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".