“…A number of genetically transformed lines of Fragaria sp. were obtained throughout genetic engineering to study gene functions or to improve traits such as resistance, ripening, and fruit production (Haymes and Davis, 1998; Mezzetti et al, 2004; Schaart et al, 2004, 2013; Oosumi et al, 2006; Jiwan et al, 2013; Pantazis et al, 2013; see also reviews: Folta and Davis, 2006; Aldwinckle and Malnoy, 2009). Indeed, in strawberry the efficiency of transformation and the regeneration capacity is highly dependent on the genetic background (Landi and Mezzetti, 2006) and several critical factors such as hormones concentrations, incubation conditions, explant source, antibiotic, and mode of transfections can affect the frequency of regeneration (Folta and Dhingra, 2006).…”