Identification of the sex chromosome pair in coho salmon <i>(Oncorhynchus kisutch):</i> lack of conservation of the sex linkage group with chinook salmon <i>(Oncorhynchus tshawytscha)</i>
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Bibliographic record
Abstract
Fluorescence in situ hybridization (FISH) using a probe to the male-specific GH-Y (growth hormone pseudogene) was used to identify the Y chromosome in coho salmon (Oncorhynchus kisutch). The sex chromosome pair is morphologically similar to chinook salmon (Oncorhynchus tshawytscha) with the GH-Y localized to the small short arm of the largest subtelocentric chromosome pair. FISH experiments with probes containing sex-linked genes in rainbow trout (Oncorhynchus mykiss) (SCAR163) and chinook salmon (Omy7INRA) showed that the coho sex linkage group is different from chinook and rainbow trout and this was confirmed by segregation analysis for the Omy7INRA locus. The telomeric location of the SEX locus, the presence of shared male-specific markers in coho and chinook salmon, and the lack of conservation of sex-linkage groups suggest that transposition of a small male-specific region may have occurred repeatedly in salmonid fishes of the genus Oncorhynchus.
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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 | 0.002 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.000 | 0.001 |
| Science and technology studies | 0.000 | 0.002 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.001 | 0.001 |
| 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 it