Photoperiodic insensitivity has been the selected trait that allowed cultivation of potato outside its centre of origin, to the northern latitudes of Europe and North America. More than a decade ago, Solanum tuberosum CYCLING DOF FACTOR 1 ( StCDF1 ) was identified as the maturity locus, regulating both above and below-ground maturity traits, also referred to as life cycle length and tuberization onset. Following its identifica...