To create the genetic map of Fragaria iinumae, experiment station researchers used the IStraw90® strawberry SNP array, an advanced genomics tool for marker-assisted mapping that the Davis lab helped develop as part of the International RosBREED Consortium. Prior to the advent of the marker-assisted mapping approach, breeders had to rely only on the evaluation of physiological traits such as fruit yield, disease resistance, and flavor for hundreds of plants to identify those with the desired traits, while having little or no knowledge of each plant's underlying genetic composition. The evaluation of traits in very large breeding populations is costly and time-consuming.