*1.6. Purpose*

In this study, we aimed to (1) evaluate the population structure and genetic diversity of 384 peanut germplasms including 100 Korean germplasms and 284 United States Department of Agriculture (USDA) core collections using Axiom\_Arachis array with 58K SNPs, and (2) to conduct GWAS for seed shape and identify candidate genes associated with this trait. Our results could provide useful tools for improving various agronomic traits in molecular breeding programs for peanuts.
