Morphological studies of developing<i>Rubus</i>prickles suggest that they are modified glandular trichomes
Why this work is in the frame
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Bibliographic record
Abstract
Prickles are defined as outgrowths of epidermal tissues and can provide a simple developmental system for the study of the control of cell proliferation and growth. Setting the stage for future studies on gene regulation in the genus Rubus (brambles), a detailed analysis and staging series of prickle development in Rubus idaeus subsp. idaeus L. (red raspberry) is presented and compared with Rubus L. subsp. rubus Watson (blackberry) and Rosa hybrida L. 'Radtko' (rose). Morphological measurements from light and scanning electron micrographs were used to subdivide prickle development into four stages. Our studies indicate that raspberry and rose prickles are modified glandular trichomes continuing to grow and eventually hardening into their final prickle morphologies as outgrowths of epidermal tissue. Although glandular trichomes seem to be involved in blackberry prickle development, our studies indicate that these prickles do not follow the same developmental progression as raspberry, suggesting a potential evolutionary deviation from what is commonly seen in raspberry and rose.
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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