Days to floral initiation (DFI) and flowering (DTF) were studied in tomato.
Four and two additive QTLs for DFI and DTF were identified, respectively.
Three and one epistatic QTL pairs for DFI and DTF were identified, respectively.
Three additive QTLs for DFI were co-located with additive or epistatic QTLs for DTF.
This study suggests that DFI QTLs play an important role in determining DTF.