Screen of Polyembryonic Mutant Rice Induced by Ion Beam Implantation and Initiation of Its Additional Embryo
Bibliographic record
Abstract
In the present study, the autotetraploid rice IR36-4X was treated with ion implantation technique by nitrogen ion beams and a polyembryonic seedling mutant(named as the IR36-Shuang) was identified in M2 generation. The mutant line was systematically investigated about the location of seedling in polyembryonic seedling, and the cytological initiation of the additional embryo in the IR36-Shuang was observed and determined. The results are as follows: The location of seedling in the polyembryonic rice IR36-Shuang could be differentiated into 2 types: the uncomplete twin seedlings and the complete twin seedlings. There were 2 types in the uncomplete twin seedlings, i.e. the twin seedlings with single plumule axis and single radicle and the twin seedlings with single radicle and twin plumule axis. The complete twin seedlings also included 2 types, i.e. the normal twin seedlings and the abnormal twin seedlings. The double-embryo was observed during different embryo development stage of the IR36-Shuang. The additional embryo in the IR36-Shuang might arise from the double set of embryo sacs in single ovary, multi-egg-cell egg apparatus, antipodal cells or endosperm cells. The results revealed the practicability of ion beam implantation technique in creating new polyploidy idioplasm, which could provide a new approach for searching the material with apomixis.
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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 | 0.000 | 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) | 0.001 | 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".