Neolithic genomes reveal long distance interactions in agropastoral border zone of Yan Mountain Region
Why this work is in the frame
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Bibliographic record
Abstract
The Yan Mountain Region (YMR), a transition zone between the Mongolian Plateau and northern China, played a pivotal yet understudied role in shaping the prehistoric East Asian genetic and cultural landscapes. Analyzing 42 ancient genomes (7700-4300 before present (BP)), focusing on the Early Neolithic Sitaimengguying (STM_EN) and Late Neolithic Jiangjialiang (JJL_LN) sites, we reveal the fine-scaled population history of the Neolithic YMR. We genetically link Early Neolithic YMR groups (Yumin and STM_EN) to the Early Neolithic Lake Baikal groups, in line with similar burial practices in the Lake Baikal region. JJL_LN individuals who belonged to the Late Neolithic Xiaoheyan culture were genetically heterogeneous reflecting an admixture between STM_EN-related groups and Yellow River farmers, and filled in an ancient genome sampling gap between the Hongshan and Lower Xiajiadian cultures. This study consolidates the idea of pre-pastoralist contact between the Eurasian steppe and northern Chinese agricultural societies and highlights the YMR as a key interaction sphere between the Yellow and West Liao River regions.
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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 | 0.000 | 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 | 0.001 |
| 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 it