Complete Chloroplast Genome Sequence of Freshwater Araphid Pennate Diatom Alga Synedra acus from Lake Baikal
Bibliographic record
Abstract
Complete chloroplast genome of diatom alga Synedra acus possesses canonical quadripartite structure with two inverted repeats containing ribosomal RNA gene loci that separate small and large single-copy regions. Chloroplast genome maps as a circular molecule of 116 251 bp. It encodes 27 tRNAs, three rRNAs, two small RNA genes, and 128 protein-coding genes. Comparison of the genic features across diatom chloroplast genomes reveals the absence of an overlap between atpD and atpF gene coding sequences that is present in other plastid genomes of diatom origin. This feature is a clear synapomorphy of S. acus plastid genome that is likely a result of either relaxed constraints or extensive selection forces acting upon atpF gene. We also characterized nuclear-encoded acyl-carrier protein gene with chloroplastic targeting in S. acus. The transfer of acpp gene into the nuclear host genome is hypothesized to have occurred independently in several lineages of diatoms.
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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) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.001 | 0.002 |
| Science and technology studies | 0.001 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.001 |
| Insufficient payload (model declined to judge) | 0.004 | 0.002 |
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".