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Updated: Feb 16, 2026
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Repeatable Stair-step Assay to Access the Allelopathic Potential of Weedy Rice Oryza sativa ssp.
Published on: January 28, 2020
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Multiple Origin but Single Domestication Led to Oryza sativa
Jae Young Choi1, Michael D Purugganan2,3
1Center for Genomics and Systems Biology, Department of Biology, New York University, New York 10003 jyc387@nyu.edu.
G3 (Bethesda, Md.)
|January 6, 2018
Summary
Asian rice (Oryza sativa) domestication involved multiple wild progenitors. A single domestication event occurred, with alleles spreading via introgression between rice populations.
Area of Science:
- Agricultural Science
- Genetics
- Botany
Background:
- The domestication of Asian rice (Oryza sativa) is debated, with previous studies yielding conflicting models.
- Reanalysis of existing data is crucial for resolving these discrepancies.
Purpose of the Study:
- To re-evaluate a large-scale dataset of wild and domesticated rice.
- To clarify the domestication scenario and origin of Asian rice.
Main Methods:
- Phylogenetic analysis of concatenated genomic regions.
- Reanalysis of selective sweep regions to identify false positives.
Main Results:
- Asian rice originated from multiple wild progenitor subpopulations.
- A single de novo domestication event occurred.
- Domestication alleles were transferred between subpopulations through introgression.
Conclusions:
- The study reconciles conflicting domestication models for Asian rice.
- Multiple wild progenitors contributed to Asian rice diversity.
- Introgression played a key role in spreading domestication alleles.
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