Genomics reveals the origins of historical specimens
Ontology highlight
ABSTRACT:
PROVIDER: PRJNA698011 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| SRR13833900_1.fastq.gz | Fastqsanger.gz | |||
| SRR13833900_2.fastq.gz | Fastqsanger.gz | |||
| SRR13834000_1.fastq.gz | Fastqsanger.gz | |||
| SRR13834000_2.fastq.gz | Fastqsanger.gz | |||
| SRR13833901_1.fastq.gz | Fastqsanger.gz |
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Project description:Prehistoric Japan underwent rapid transformations in the past 3000 years, first from foraging to wet rice farming and then to state formation. A long-standing hypothesis posits that mainland Japanese populations derive dual ancestry from indigenous Jomon hunter-gatherer-fishers and succeeding Yayoi farmers. However, the genomic impact of agricultural migration and subsequent sociocultural changes remains unclear. We report 12 ancient Japanese genomes from pre- and postfarming periods. Our analysis finds that the Jomon maintained a small effective population size of ~1000 over several millennia, with a deep divergence from continental populations dated to 20,000 to 15,000 years ago, a period that saw the insularization of Japan through rising sea levels. Rice cultivation was introduced by people with Northeast Asian ancestry. Unexpectedly, we identify a later influx of East Asian ancestry during the imperial Kofun period. These three ancestral components continue to characterize present-day populations, supporting a tripartite model of Japanese genomic origins.
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