Data from: A single domestication origin of adzuki bean in Japan and the evolution of domestication genes

Adzuki is a significant legume representing East Asian culinary culture,
yet the origin of its domestication remains debated. Using ~700 wild and
cultigen accessions across Asia, we showed that the initial domestication
happened 3-5 kya in central Japan during the Jomon period, followed by a
range expansion into China and secondary hybridization with the Chinese
wild population. We mapped, validated, and dated key genes associated with
seed coat color evolution (VaPAP1 for loss of black and VaANR1 for gain of
red colors). The frequency increase of seed-color-associated mutants
substantially predated that of the yield-ensuring pod-non-shattering
phenotype and the wild-cultigen divergence. Despite the moderate
connections between VaANR1 and seed permeability, our results challenge
the progressive view of domestication and support archaeobotanical
evidence of early weak selection.