Identification of QTLs for Lignin Content of Seed Coat in Brassica napus L. in Different Environments
Bibliographic record
Abstract
摘要： 以甘蓝型黄籽油菜GH06和甘蓝型黑籽油菜中油821为亲本杂交，后代通过“一粒传法”连续自交7代构建重组自交系，2007年分别在重庆市北碚区和万州区2个试验基地种植重组自交系群体，利用本实验室已构建的遗传连锁图谱和复合区间作图法(CIM)，对种皮木质素含量进行测定及QTL定位分析。结果在2个环境中共检测到12个种皮木质素含量相关的QTL，分别位于4个不同的连锁群，单个QTL可解释性状表型变异的4.50%~8.79%；在第3连锁群上检测到1个QTL与同一标记EM19ME23/130连锁，其余10个QTL位置不同；在北碚检测到的QTL主要分布于第20连锁群，在万州检测到的QTL主要位于第3连锁群；部分种皮木质素的QTL与种胚类黄酮和种皮色泽的QTL位于相近区间，在北碚和万州种皮木质素含量与种胚类黄酮存在极显著和显著正相关关系。结果表明甘蓝型油菜种皮木质素含量表现为多基因控制的数量性状，基因表达受环境影响较大；油菜种皮木质素合成和类黄酮的积累可能受相同关键基因调控或者具有部分相同的合成代谢途径。
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How this classification was reachedexpand
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 itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, 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".