The families with the corresponding cross and back-cross (BC) combination, as used in the present study.

The corresponding parents and number of offspring evaluated for their fruit nutritional quality of the half-sib BC1 FVG, half-sib BC2 FVG and half-sib intra-species crossing. AN94,414,52 is a cross of the Fragaria × ananassa cultivar Don × F. virginiana ssp. glauca selection FVG 22 from USDA Corvallis germplasm repository (USA). AN00,239,55 (BC1) is an elite selection from the cross of selection AN94,414,52 (F1) × F. × ananassa selection 91,143,5. Romina and AN03,338,56 are elite selections from the Università Politecnica delle Marche breeding program, containing no wild germplasm.