Table 3.

Epistatic effects between QTLs estimated on plant height at various developmental stages.

SSSL combination	Epistatic component	QTL	t1	t2	t3	t4	t5	t6	t7	t8	t9
S1/S2	ad	QTL(t)								8.21**	8.46**
		QTL(t|t − 1)						8.72**
	dd	QTL(t)								7.80*
		QTL(t|t − 1)						4.59*		5.96*	− 5.82*
S1/S3	aa	QTL(t)				− 9.78**	− 9.01**				10.83**
		QTL(t|t − 1)									7.04**
	dd	QTL(t)
		QTL(t|t − 1)								5.97*	− 5.70*
S1/S4	ad	QTL(t)					− 6.45*		− 6.56*
		QTL(t|t − 1)									5.17*
	da	QTL(t)		6.67*							7.48*
		QTL(t|t − 1)		6.10*						6.45*
	dd	QTL(t)				− 8.74**	− 11.37**	− 4.35*	− 7.20*
		QTL(t|t − 1)				− 6.37*				5.26*
S1/S5	aa	QTL(t)									8.58**
		QTL(t|t − 1)									6.26*
	da	QTL(t)								8.04**	7.28*
		QTL(t|t − 1)								8.37**
	dd	QTL(t)
		QTL(t|t − 1)								6.31*
S2/S3	aa	QTL(t)		− 7.76*	− 7.33*	− 8.75**	− 6.66*	− 7.70*
		QTL(t|t − 1)						− 4.50*
S2/S4	aa	QTL(t)			− 7.61*	− 7.76*		− 6.97*
		QTL(t|t − 1)						− 4.12*
	ad	QTL(t)		− 9.29**		− 11.17**	− 10.77**	− 8.26**	− 10.25**
		QTL(t|t − 1)				− 5.65*				5.21*
	dd	QTL(t)	− 10.96**	− 12.21**	− 9.67**	− 15.07**	− 14.47**	− 8.18*	− 9.97**		− 9.28*
		QTL(t|t − 1)	− 10.96**	− 6.19*		− 6.36*
S2/S5	ad	QTL(t)	− 12.02**	− 13.03**	− 9.56**	− 8.77**	− 8.13**	− 7.87*
		QTL(t|t − 1)	− 12.02**	− 6.43*					6.14*
	dd	QTL(t)	− 14.16**	− 11.71**	− 9.40**	− 11.66**	− 8.37**
		QTL(t|t − 1)	− 14.16**

SSSL is the abbreviation of the single segment substitution line. $S_i$ represented ith SSSL. aa, ad, da and dd were the abbreviations of epistatic components of additive-additive, additive-dominance, dominance-additive and dominance-dominance, respectively, estimated by the mean of $(D_{\mathit{ij}}+HJX74-S_i-S_j)$ (where $D_{\mathit{ij}},S_i,S_j$ indicated dual segment and its two single segment materials, respectively, which might be homozygotes or heterozygotes). QTL(t) and QTL(t|t − 1) represent unconditional and conditional QTLs at stage t, respectively. t_i indicates various developmental stages 7 days apart. Sign “–” indicates descending plant height due to alleles from donors. Superscripts “* and **” indicate significance at the 5% and 1% levels, respectively.