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Record W4412006569 · doi:10.1139/cjps-2024-0124

Genomic analysis of <i>Alternaria alternata</i>, the causal agent of black spot disease in Korla fragrant pears (<i>Pyrus sinkiangensis</i> Yü) in China

2025· article· en· W4412006569 on OpenAlex

Why this work is in the frame

A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.

venuePublished in a venue whose home country is Canada.
no affNo Canadian affiliation: this work is invisible to an affiliation-only frame.
No Canadian affiliation. An affiliation-only frame, the usual design, would never have seen this work. It is one of the works that make the case for inverting the frame.

Bibliographic record

VenueCanadian Journal of Plant Science · 2025
Typearticle
Languageen
FieldAgricultural and Biological Sciences
TopicFungal Plant Pathogen Control
Canadian institutionsnot available
Fundersnot available
KeywordsAlternaria alternataBlack spotBiologyChinaPEARBotanyHorticultureGeography

Abstract

fetched live from OpenAlex

Alternaria alternata is a pathogenic fungus that adversely affects fruit crops and causes substantial economic loss. A specific strain of A. alternata (A923) was successfully isolated and identified from Korla fragrant pears ( Pyrus sinkiangensis Yü). The ability of this strain to induce black spot disease in pears was verified. A combination of Illumina and PacBio Sequel sequencing was used to obtain the genome sequence for understanding the A923 strain. The assembly process revealed that the genome consists of 36 070 468 bp (36.07 Mb). Consequently, the analysis primarily focused on the genes associated with pathogenicity. These findings revealed the presence of 794 CAZymes, including 119 glycosyltransferases, 26 polysaccharide lyases, 153 carbohydrate esterases, 161 auxiliary activities, 19 carbohydrate-binding modules, and 316 glycoside hydrolases. A database of fungal virulence factors identified 1258 genes in strain A923. CUTI_ALTBR, a member of the cutinase family, is responsible for catalyzing the hydrolysis of cutin, a polyester that forms the structure of the plant cuticle. This enzymatic activity allows the pathogenic fungi to breach the cuticular barrier during the initial stages of infection. Cytochrome P450 family analysis successfully annotated 11 458 genes (97.63%). The results obtained in this study provide a useful resource for further investigation of this pathogen and its pathosystem.

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.

Full frame distilled prediction

Teacher imitation

Not 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.

metaresearch head score (Codex)0.001
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Observational · Consensus signal: Observational
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.444
Threshold uncertainty score0.976

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0010.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.003
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0010.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0000.000

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.

Opus teacher head0.008
GPT teacher head0.197
Teacher spread0.188 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it