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Record W2025175761 · doi:10.1139/g99-133

Repetitive A-T rich DNA sequences from the Y chromosome of the Mediterranean fruit fly,<i>Ceratitis capitata</i>

2000· article· en· W2025175761 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

VenueGenome · 2000
Typearticle
Languageen
FieldAgricultural and Biological Sciences
TopicInsect behavior and control techniques
Canadian institutionsnot available
Fundersnot available
KeywordsCeratitis capitataBiologyRepeated sequenceGeneticsDNA sequencingChromosomeGenomeInverted repeatDNATephritidaeDirect repeatGeneBotanyPEST analysis

Abstract

fetched live from OpenAlex

Copies of a repetitive DNA sequence distributed over 90% of the length of the long arm of the Y chromosome of the Mediterranean fruit fly, Ceratitis capitata (medfly), have been characterized. Sequencing reveals that these repeats, ranging in size from approximately 1.3 to 1.7 kb, are A-T rich overall (67%). In most cases the repeat units appear to occur in tandemly linked arrays. The repeat copies also all contain a highly similar internal region, approximately 200 bp in length, with a more extreme A-T content bias. This internal region, designated as the AT element, exhibits an A-T content of at least 83%. This exceeds what has been described for any comparable element among invertebrates. Using primers designed from the DNA sequence, PCR amplification of an internal region encompassing the AT element also reveals that these sequences are present only in the male genome in different strains of the medfly.

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)0.000
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesInsufficient payload (model declined to judge)
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Bench or experimental · Consensus signal: none
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.927
Threshold uncertainty score0.996

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.000
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0010.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0050.000

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 head0.015
GPT teacher head0.206
Teacher spread0.190 · 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