YIELD REACTIONS AND RATES OF ORIGIN OF CHROMOSOME REARRANGEMENTS AND GENE MUTATIONS IN BARLEY
Bibliographic record
Abstract
ENETIC changes in diploid barley, induced by the application of G various mutagens (EHRENBERG et al., 1959(EHRENBERG et al., , 1961;;GUSTAFSSON, 1963 GUSTAFSSON, , 1965)), comprise structural chromosome rearrangements, gene mutations and extranuclear mutations.The viability reactions (including productivity and competitive ability) have been continually studied for mutations of various kinds, ranging from lethal gene mutations to fully productive mutants, under different modes of cultivation, in the homozygous and heterozygous state.Some 15 years ago work was started testing the productivity of homozygous translocations (NYBOM, 1954(NYBOM, , 1956;; GUSTAFSSON and TEDIN, 1954).In recent years these tests have been intensified and extended to cover also honiozygous chromosome inversions.Phytotron studies of induced mutants have recently been undertaken.Some results will be published shortly.A problem of special importance in this connection deals with the relative rates of origin of various genetic changes, especially of those possessing an unchanged or increased productivity. YIELDING ABILITY OF CHROMOSOME TRANSLOCATIONS AND INVERSIONSOnly data from 1964 and 1965 will be briefly discussed here.The translocation and inversion materials of these two years comprise the following series of testing:
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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 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.001 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.001 |
| Insufficient payload (model declined to judge) | 0.002 | 0.001 |
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".