Phytogeography, genetic variation and antioxidant phytochemistry of «Sorbus» spp. in the Eeyou Istchee, James Bay, region of Quebec
Bibliographic record
Abstract
Two species of mountain ash (Sorbus decora and S. americana) distributed in Eeyou Istchee (James Bay, Quebec) were assessed for differences in their DNA, gene expression and antioxidant capacity to determine if environment or genetic variation contributed to previously observed differences in medicinal, and possibly antidiabetic, activity. Samples of both species were taken from 20 populations throughout Eeyou Istchee. Quantitative real time PCR analysis showed species and tissue specific expression for two likely antidiabetic genes. Significantly higher expression was observed in samples from coastal communities, along with increasing expression with latitude. Similar patterns were observed when antioxidant capacity of bark samples were tested using ORAC and DPPH assays. Analysis of genetic differences using nuclear microsatellites did not show significant structuring among populations. These results suggest that it is not genetic dissimilarities which led to these differences, but likely plants responding to immediate stresses in their environment.
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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".