Telomere-to-telomere genome assembly of yellow-fruited allotetraploid American ginseng ( <i>Panax quinquefolius</i> L <i>.</i> ) provides insights into flavonoid biosynthesis
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Bibliographic record
Abstract
L., commonly known as American ginseng, is a valuable beneficial medicinal herb renowned for its health-promoting properties and rich phytochemical profile. Despite significant progress in understanding ginsenoside biosynthesis, the genetic basis for flavonoid diversity in American ginseng remains unclear. This study reports the first telomere-to-telomere (T2T) genome assembly for yellow-fruited American ginseng cultivar 'Zhongnongyangshen No. 2'. The genome assembly, achieved using PacBio HiFi and Oxford Nanopore Technology ultra-long read technologies, offers a high-quality reference for genomic research, addressing previous gaps in structural accuracy. Combining transcriptomic and metabolomic analyses, we investigated flavonoid biosynthesis and the regulatory mechanisms underlying fruit color variation during different developmental stages of American ginseng. Our findings highlight the phylogenetic evolution of the American ginseng genome and offer new insights into the biosynthetic pathways of anthocyanins and flavonols. This comprehensive genomic resource facilitates deeper exploration of flavonoid diversity, supports genetic improvement efforts, and enhances the potential for future applications in medicinal plant research.
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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 | 0.001 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.000 | 0.006 |
| Science and technology studies | 0.001 | 0.001 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.002 | 0.001 |
| Research integrity | 0.000 | 0.001 |
| 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 it