Male Meiotic Studies in Some Plants of Polypetalae from Dalhousie Hills (Himachal Pradesh)
Bibliographic record
Abstract
Male meiosis and pollen fertility studies have been performed in 35 species belonging to 25 genera and 13 families of Polypetalae from the Dalhousie hills. Impatiens laxiflora (n=6) was counted chromosomally for the first time. Corydalis cornuta (n=8), Erysimum hieracifolum (n=16), Arenaria serpyllifolia (n=10), Drymaria diandra (n=13), Geranium lucidum (n=14), Nasturtium officinale (n=16), Geum roylei (n=21) and Chaerophyllum reflexum (n=11) are worked out chromosomally for the first time in India. New cytotypes are recorded for Thalictrum saniculiforme (n=14), Drymaria diandra (n=13), Geranium lucidum (n=14) and Chaerophyllum reflexum (n=11). Present chromosome counts for the rest of the species substantiate earlier reports by other researchers. Intraspecific diploid (n=12) and tetraploid (n=24) cytotypes recorded presently from Dalhousie hills in Oxalis corniculata are morphologically indistinguishable. The phenomenon of cytomixis involving inter PMC (pollen mother cell) migration of chromatin material has been observed in Ranunculus diffusus (n=16), Thalictrum foliolosum (n=7), T. saniculiforme (n=14), Gypsophila cerastioides (n=15), Oxalis corniculata (n=24), Murraya koenigii (n=9), Geum roylei (n=21), Potentilla atrisanguinea (n=21) and Pimpinella diversifolia (n=9). Cytomixis in these species results in various meiotic abnormalities and heterogeneous sized pollen grains. In the remaining species, the meiosis is normal, leading to high pollen fertility.
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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) | 0.001 | 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 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".