Dispersal in a sterile lichen-forming fungus,<i>Thamnolia subuliformis</i>(Ascomycotina: Icmadophilaceae)This paper is one of a selection of papers published in the Special Issue on Systematics Research.
Bibliographic record
Abstract
Thamnolia subuliformis (Ehrh.) Culb. is a sterile lichen-forming ascomycete with no known sexual or vegetative reproductive structures except fragments of thallus branches. The open tundra in northern Manitoba contains fragments of T. subuliformis randomly scattered over the landscape, giving the appearance that dispersal is common. This may provide a misleading impression of gene flow, but similar fragmentation is seen in seven other locally occurring species of lichen-forming fungi. The primary objective of this study was to examine the population structure of T. subuliformis using four multilocus markers (interspersed simple sequence repeats; ISSR) and a single locus marker (the presence/absence of a group I intron in the nuclear 18S rDNA locus). Significant population subdivision is reported for two different classifications of what constitutes a population. Thallus fragments of T. subuliformis may be intact and slow growing, having accumulated tissue over a long period of time, with low levels of gene flow occurring in localized areas. The presence of the group 1 intron in localized transects may suggest either that the intron was introduced recently and has not had sufficient time to disperse among populations, or that it has been lost in other locations.
Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.
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 | 0.001 | 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) | 0.006 | 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".