Table 4.

QTLs detected for three grain traits in the R1–R8 populations

Population	Marker interval	Trait	LOD	A	R2(%)
R1	RM1135–RM11	GL	0.27	− 0.038	1.41
		GW	1.24	0.041	4.61
		TGW	0.38	0.039	1.38
R2	RM11–Y7–2	GL	7.35	−0.115	19.54
		GW	9.37	−0.065	21.65
		TGW	11.00	−0.621	16.09
R3	RM11–Y7–2	GL	5.07	−0.109	15.46
		GW	3.29	−0.050	10.24
		TGW	7.16	−0.907	16.86
R4	RM11–RM21734	GL	0.32	−0.041	1.80
		GW	1.03	0.002	0.06
		TGW	0.26	0.141	1.03
R5	Y7–4–RM21787	GL	0.45	−0.025	1.39
		GW	0.14	0.001	0.04
		TGW	0.30	−0.096	0.48
R6	RM21787–Y7–13	GL	17.99	−0.129	48.52
		GW	4.08	−0.026	16.44
		TGW	8.04	−0.595	25.38
R7	RM21787–Y7–12	GL	1.91	−0.077	7.33
		GW	1.25	−0.007	0.40
		TGW	1.72	−0.263	1.87
R8	Y7–4–RM455	GL	5.81	−0.074	18.12
		GW	3.61	−0.031	12.77
		TGW	3.21	−0.494	9.22

GL grain length (mm), GW grain width (mm), TGW thousand grain weight (g). A, additive effect, Positive value and negative value of additive effects represented the Nipponbare and IL188 alleles, respectively. R, variance explained by the QTL