抄録
Ancient beans were excavated at the 6,000-years-old layer in Sannai-Maruyama archaeological site, Aomori, Japan. Because their morphology did not allow definite taxonomic identifications, DNA of the ancient beans was extracted to identify their species on the basis of molecular data. The genomic DNAs were amplified using PCR technique for chloroplast microsatellites and plastid-subtype ID sequence between rpl 16 and rpl 14 genes. As comparative taxa, the following modern bean species were examined, mung beans, azuki beans, wild soybean, and cultivated soybean. The DNA analysis suggests that at least some ancient beans from the Sannai-Maruyama site may belong to soybeans. Although at least some of those ancient soybeans appear to be the wild type, there is no reason to dismiss the possibility that ancient villagers at the site practiced a primitive form of soybean domestication.
https://ror.org/02syg0q74 
