Correlation coefficients between BnFLC and BnFRI loci in the Tapidor and Ningyou7 during different developmental stages.

aPearson’s correlation coefficients were calculated by relative expression values within different BnFLC and BnFRI gene pairs in cotyledons or leaves which harvested from the cotyledon, the stem elongation and the flowering stages of nonvernalized Ningyou7, or from the cotyledon, the first-, two-, and four-leaf stages of nonvernalized Tapidor plants.bThe value in parentheses represents the P-value.