Callus mediated in-vitro plant regeneration and clonal fidelity assessment of Lilium longiflorum cv. “Pavia” by ISSR markers
Bibliographic record
Abstract
Aim: Developing a protocol for mass multiplication of Lilium (Lilium longiflorum) bulbs via indirect organogenesis and somatic embryogenesis for in-vitro plant regeneration and ISSR marker-based mapping to assess the fitness of true to type. Methodology: To induce organogenic callus, six combinations of 2,4-D and BAP were tested; while nine combinations of picloram and NAA were used for somatic embryogenesis. NAA and IBA were tested for root induction. The clonal fidelity of the in-vitro regenerated plantlets from both calluses were tested using polymerase chain reaction (PCR)-based ISSR markers analysis. All experiments were arranged in a complete randomized block design and replicated three times. Results: Two methods (direct and indirect organogenesis) were investigated to assess the best callus mediated plant regeneration for Lilium bulb multiplication. The maximum organogenic callus induction and the highest regeneration percent was recorded with BAP (0.5 mg l-1) + 2,4-D (3.0 mg l-1). However, MS medium containing 0.50 mg l-1 picloram and 0.20 mg l-1 NAA was found best for initiation of embryogenic callus and proliferation and was found superior over direct organogenesis. Clonal fidelity was assessed through ISSR markers comparing the mother plant and regenerated plantlets. Interpretation: Both organogenic callus andembryogenic callus are capable of developing true to type in-vitro plants and can be explored for mass multiplication of Lilium bulbs. Embryogenic callus can further be utilized in liquid suspension based bioreactor system. The present protocol has potential applications in micropropagation and genetic transformation studies in other Lilium spp.
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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".