Hemicycliophora potteri n. sp. (Tylenchida: Hemicycliophoridae) infesting highbush blueberry (Vaccinium corymbosum) in Ontario, Canada
Bibliographic record
Abstract
Summary Highbush blueberry is a blueberry species native to North America and is a food crop of significant economic importance for Canada. Plant-parasitic nematodes are known to infest this crop. Species of Hemicycliophora , commonly known as sheath nematodes, are obligatory plant-parasites, and some cause diseases on a wide range of crops. A population of Hemicycliophora of high number was found in highbush blueberry fields in Norfolk and Middlesex counties of southwestern Ontario. Following through morphological and molecular studies, this population was determined a new species as Hemicycliophora potteri n. sp. This species is characterised by its outer sheath adpressed fitting to the body, lateral fields with diagonal connections of transverse striae, amphid apertures covered by lateral plates, lip region slightly set-off with four annuli; excretory pore anterior to the base of the pharynx, stylet knob cavity moderate, vulva lips modified, tail tapering gradually and more abruptly towards the last one-third, and no males were found. Molecularly, the 18S, and 28S ribosomal DNA sequences are most similar to those of H. thienemanni , H. similis , H. gracilis , and a few unidentified species. A dichotomous key for the diagnostic of the species of Hemicycliophora in Canada was presented. To the best of our knowledge, Hemicycliophora potteri n. sp. is the first recorded species of the genus to be named and fully described from highbush blueberry.
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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 | 0.001 |
| Science and technology studies | 0.002 | 0.001 |
| Scholarly communication | 0.001 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.002 | 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".