<i>Proliferating Floral Organs</i> (<i>Pfo</i>), a <i>Lotus japonicus</i> gene required for specifying floral meristem determinacy and organ identity, encodes an F‐box protein
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Bibliographic record
Abstract
To study flower development in the model legume Lotus japonicus, a population of transgenic plants containing a maize transposable element (Ac) in their genome was screened for floral mutants. One mutation named proliferating floral organs (pfo) causes plants to produce a large number of sepal-like organs instead of normal flowers. It segregates as a single recessive Mendelian locus, and causes sterility. Scanning electron microscopy revealed that pfo affects the identity, number and arrangement of floral organs. Sepal-like organs form in the first whorl, and secondary floral meristems are produced in the next whorl. These in turn produce sepal-like organs in the first whorl and floral meristems in the second whorl, and the process is reiterated. Petals and stamens are absent while carpels are either absent or reduced. The pfo phenotype was correlated with the presence of an Ac insertion yielding a 1.6-kb HindIII restriction fragment on Southern blots. Both the mutant phenotype and this Ac element are unstable. Using the transposon as a tag, the Pfo gene was isolated. Conceptual translation of Pfo predicts a protein containing an F-box, with high overall similarity to the Antirrhinum FIMBRIATA, Arabidopsis UNUSUAL FLORAL ORGANS and Pisum sativum Stamina pistilloida proteins. This suggests that Pfo may regulate floral organ identity and meristem determinacy by targeting proteins for ubiquitination.
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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 | 0.001 | 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 | 0.001 | 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