Mapping Consistent Rice (Oryza sativa L.) Yield QTLs under Drought Stress in Target Rainfed Environments

Rice

Table 3 QTLs detected for physio-morphological and plant production traits under drought stress condition in MSE (trial1) and TE (trials 2 and 3)

Trait^a	Trial	Chr.	Nearest marker	Position (cM)	LOD score	R² (%)	Additive effect^a
Relative water content (%)	1	8	RM6925	6.26	3.60	11.0	0.12
Canopy temperature (°C)	1	7	RM3691	44.54	2.60	11.0	0.67
Leaf rolling	1	6	RM314	21.88	4.20	24.8	−0.29
Leaf rolling	1	12	RM101	68.73	5.23	27.3	−0.33
Stress recovery	1	2	RM208	126.35	3.30	18.4	0.40
Days to 50 % flowering	2	6	RM314	21.85	30.0	55.8	−5.01
Plant height (cm)	1	1	RM212	126.40	3.40	20.0	0.41
		2	RM2770	0.00	3.00	15.0	0.34
		9	RM6862	186.38	3.27	13.2	0.23
	2	1	RM212	126.40	14.2	27.5	12.2
	2	8	RM1235	6.28	2.53	5.0	4.93
	3	1	RM8085	247.8	12.48	52.2	11.56
Tiller number	2	2	A11	0.35	2.61	4.8	0.55
Tiller number	2	2	C06M1	62.94	3.00	6.8	−0.33
Productive tillers	2	2	C06M1	62.92	5.30	10.0	−0.29
		7	RM6449	18.14	2.52	5.60	−0.23
		10	RM1859	0.30	3.01	6.0	−0.23
Panicle length (cm)	2	1	RM212	126.37	5.42	10.7	0.81
Panicle length (cm)	2	8	RM1235	0.00	2.52	4.3	0.50
Panicle HI	2	6	RM314	21.87	11.0	24.5	0.06
100 Seed weight (g)	2	2	RM1342	78.27	3.2	5.9	0.06
100 Seed weight (g)	2	6	RM314	21.85	18.3	36.1	0.35
Grain yield (g/m²)	2	6	RM314	21.88	7.00	14.0	26.0
	2	8	RM6925	6.26	3.50	8.5	24.5
	3	1	RM8085	241.8	6.53	20.9	19.36
	3	6	RM6836	37.9	3.99	6.7	11.34
Straw yield (g/m²)	2	1	RM9	85.33	3.37	6.3	−47.6
		1	RM3825	134.00	8.41	17.8	86.1
		6	RM314	21.85	10.0	20.0	−87.8
		6	RM6836	40.81	6.00	9.1	−194.81
	3	6	RM314	32.9	3.1	5.4	−29.89
Biomass (g/m²)	1	4	C20	22.23	14.0	36.8	0.06
Harvest index	2	1	RM3825	133.98	2.7	5.0	−0.03
	2	6	RM314	21.85	25.0	44.9	0.09
	3	6	RM314	30.9	10.36	20.2	0.04

^aPositive and negative values indicate that the IR20 and NP allele increase the phenotypic value, respectively, for a particular trait