Historical rice seeds from the 1950s reveal pre-modern genetic structure in indica landraces of mainland Southeast Asia
Koji Numaguchi, Sathya Lim, Chhourn Orn, Yui Higashikubo, Hiroki Saito, Yutaka Sato, Ryo Ishikawa, Rafal Marek Gutaker, Takashige Ishii
The paper analyzes historical rice seeds from the 1950s to show pre-modern genetic structure in indica landraces, revealing a distinct northern Vietnamese lineage and a genetic continuum in southern Vietnam, Cambodia, and Thailand.
Journal of Experimental Botany · Aug 19, 2026Peer-reviewedPlant Biology