The <i>scurs</i> locus in cattle maps to bovine chromosome 19
Why this work is in the frame
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Bibliographic record
Abstract
Polled, or the absence of horns, is a desirable trait for many cattle breeders. However, the presence of scurs, which are small horn-like structures that are not attached to the skull, can lower the value of an animal. The scurs trait has been reported as sex influenced. Using a genome scan with 162 autosomal microsatellite markers genotyped across three full-sib families, the scurs locus was mapped near BMS2142 on cattle chromosome 19 (LOD = 4.21). To more precisely map scurs, the families from the initial analysis and three additional families were genotyped for 16 microsatellite markers and SNPs in three genes on chromosome 19. In this subsequent analysis, the scurs locus was mapped 4 cM distal of BMS2142 (LOD = 4.46) and 6 cM proximal to IDVGA46 (LOD = 2.56). ALOX12 and MFAP4 were the closest genes proximal and distal, respectively, to the scurs locus. Three microsatellite markers on the X chromosome were genotyped across these six families but were not linked to scurs, further demonstrating that this trait was not sex linked. Because the polled locus has been mapped to the centromeric end of chromosome 1 and scurs has now been mapped to chromosome 19, these two traits are not linked in Bos taurus.
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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 | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| 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 it