Complete mitochondrial genomes of Eastern Massasauga ( <i>Sistrurus catenatus</i> ) and North American Racer ( <i>Coluber constrictor</i> )
Bibliographic record
Abstract
Abstract We report the complete mitochondrial genomes of two snake species of conservation concern, Eastern Massasauga ( Sistrurus catenatus ) and North American Racer ( Coluber constrictor ). The mitogenome length is 17,245bp for S. catenatus and 17,142bp for C. constrictor . Both mitogenomes include 13 protein-coding genes, 22 transfer RNA genes, two ribosomal RNA genes and two control regions. Gene arrangements are similar between two species, except that tRNA-Pro is located between tRNA-Ile and Control Region 2 in S. catenatus , but between tRNA-Thr and Control Region 1 in C. constrictor . Such gene arrangements are typical of their respective families, Viperidae and Colubridae. A phylogenetic tree with 21 additional snake species using concatenated 12 protein-coding genes (without ND6) supported current taxonomy of two reported species. We also found that North American racers in Ohio, Michigan (USA) and Pelee Island (Canada) were more closely allied to Pennsylvania individuals from the Eastern United States.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.001 |
| 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 source (direct Gemma or distilled Codex), 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".