Genetic assay and study of crop germplasm introduced/originated in East Asia

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Plant genetic resources of important crops, including barley, wheat, soybean and melon, have been explored in Asian countries through which crops were introduced to East Asia, and successfully introduced through a total of twelve times of field expedition. Several important new findings related with the evolution, transmission, adaptation of these crops have been obtained by the analysis of diverse plant genetic resources, and published in scientific papers and books. We also identified several accessions which can be used for the improvement of agronomically important traits. Such novel resources can be utilized in breeding program of each crop, as well as for basic research to identify novel genes.