A new yellow-seeded canola genotype originating from double low black-seeded <i>Brassica napus</i> cultivars
Bibliographic record
Abstract
A new source of yellow-seeded Brassica napus canola has been identified in doubled haploid progeny, from a cross between the two black-seeded spring cultivars, Star and Bolero. Six yellow-seeded doubled haploid lines were extracted from the F1 generation of this cross. The yellow-seeded doubled haploid lines and some of their progeny showed differences in yellow seed colour expression in different temperature environments, among the 11 lines investigated. Similar populations of plants grown in daily maximum temperatures of 20, 28 and over 30°C showed increasing seed yellowness in the hot temperature and were darker in colour in the cool environments. Oil quality and fatty acid profiles were compared between yellow and dark seeded pairs. Although percent oil showed no overall trend in direction of change, oleic acid increased on average by 10%, while linolenic acid decreased by 5% under warmer growing conditions. Glucosinolate levels were stable between the yellow-seeded and dark-seeded pairs grown in either hot or cool temperatures. The yellow-seeded inbreds retained canola quality. Preliminary inheritance ratios suggest that this trait might be governed by fewer than three genes, and PCR analysis indicates that different genes may be involved here than those for the yellow-seeded genotypes previously published, which were derived from interspecific crosses. Key words: Brassica napus, yellow seed, temperature, oil quality
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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 | 0.000 |
| 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 | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.001 | 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 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".