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

Rice

Table 4 List of QTLs with additive effects identified under stress conditions over different seasons in the target environment

Trait	Trial	Chr.	Marker Interval	Confidence interval^a	A ± SE^b	α = 0.05
Trait	Trial	Chr.	Marker Interval	Confidence interval^a	A ± SE^b	F value^c	h²(a)^d
Canopy temperature	1	4	I12S–P16	91.3–111.3	1.07 ± 0.20	32.9	1.8
Canopy temperature		6	RM6836–S12M1	31.5–44.8	−0.76 ± 0.12	17.9	1.4
Leaf drying	1	4	I12S–P16	104.3–116.3	−0.30 ± 0.06	13.87	6.8
SPAD	1	4	RM5424–C20	39.4–69.3	−1.02 ± 0.27	14.11	6.7
Grain yield (g/m²)	2	1	RM8085–RM3825	144.7–166.2	−38.68 ± 10.26	14.25	7.2
Grain yield (g/m²)		4	I12S–P16	80.3–111.3	−70.49 ± 16.38	16.52	8.9
Straw yield (g/m²)	2	4	RM6909–I12S	78.3–78.3	−59.90 ± 16.19	13.70	6.4
Panicle harvest index	2	4	I12S–P16	84.3–116.3	−0.15 ± 0.04	13.44	6.5

^aConfidence interval in CentiMorgans with respect to the first marker in the linkage group
^bMain additive effect plus/minus standard error. Thus, positive values indicate that the IR20 allele increases the phenotypic value
^c F value of significance for each QTL
^dh²(a) is the heritability of the additive effect or percentage of variation that is explained by the additive component of the QTL