Characterisation of Bursaphelenchus spp. isolated from packaging wood imported at Nanjing, China
Bibliographic record
Abstract
Abstract Bursaphelenchus nematodes, extracted from 12 samples taken from imported packaging wood originating from seven countries and regions at Nanjing, China, during 2003 and 2004, were identified using morphology, morphometric data and ITS-RFLP patterns. Two samples were identified as B. xylophilus: one, from Canada, was the M-form and another, from Japan, the R-form. Five samples were identified as B. mucronatus, three belonging to the European genotype and two to the East-Asian genotype. Two samples (from Germany and South Korea) were recognised as B. rainulfi. Two samples (South Korea and Japan) were identified as B. doui and a sample from Hong Kong was identified as B. thailandae. Additional morphometric data are provided for the identified species, especially with respect to spicule morphometrics. The CDA of morphometric data discriminated the five species by nine male and eight female characters. The characters used for this analysis corresponded partly to the main taxonomic-informative characters for the genus Bursaphelenchus, viz., body length, stylet length, spicule length, a, c and c′ values. The phylogenetic trees constructed from the D2D3 sequence data supported the division of East Asian and European genotype groups of B. mucronatus. Bursaphelenchus doui grouped with B. xylophilus and B. mucronatus, all members of the xylophilus-group, which was separated from B. rainulfi and B. thailandae.
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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 | 0.002 | 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) | 0.000 | 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".