Detection and validation of stay-green QTL in post-rainy sorghum involving widely adapted cultivar, M35-1 and a popular stay-green genotype B35

Rama Reddy, Nagaraja Reddy; Ragimasalawada, Madhusudhana; Sabbavarapu, Murali Mohan; Nadoor, Seetharama; Patil, Jagannatha Vishnu

doi:10.1186/1471-2164-15-909

Table 3 Quantitative trait loci (QTLs) detected for nine stay-green related traits and grain yield studied in M35-1 × B35 RIL population

From: Detection and validation of stay-green QTL in post-rainy sorghum involving widely adapted cultivar, M35-1 and a popular stay-green genotype B35

Traits	QTL name^@	Environment	QTL × E	LG	Position	Left marker	Right marker	LOD	Increased effect	R²(%)^b	Additive effect^a	Reference
SPAD values at Booting (SPADB)	QSpadb-dsr09-1	AV, I, II, III		SBI-09-1	20.7	Xisp318*	Xdhsbm10	6.5	B35	15.0	-1.00	New
	*QSpadb-dsr09-3*	M, AV, III	No	SBI-09-3	2.0	S18*	Xgap206	3.8	B35	9.3	-1.09	[17, 54]
	QSpadb-dsr05	AV, I, II		SBI-05	67.4	Stgnhsbm46*	Xtxp091	4.1	B35	8.0	-1.49	[10, 17, 18, 74, 75]
	QSpadb-dsr06-1	AV, II		SBI-06-1	76.5	Xcup12*	Xcup37	4.1	B35	6.9	-0.89	New
	*QSpadb-dsr07-1*	M, II	Yes	SBI-07-1	6.0	Xisp362*	Xtxp40	4.8	B35	6.9	-0.83	[18, 76]
	QSpadb-dsr03	AV, I		SBI-03	112.0	Xisp355*	Xtxp38	3.2	M35-1	5.0	0.73	New
	QSpadb-dsr01-1	AV		SBI-01-1	20.5	Unnhsbm68	Xtxp302*	2.7^#	B35	3.9	-0.63	[17, 54, 76]
SPAD values at maturity (SPADM)	*QSpadm-dsr10-2*	M, AV, I, II, II	No	SBI-10-2	9.7	Xtxp337*	Xtxp20	6.0	B35	14.1	-1.24	[76]
	*QSpadm-dsr01-1*	M, AV, I	Yes	SBI-01-1	16.5	Xtxp71	Unnhsbm68*	4.2	B35	8.5	-2.18	[76]
	QSpadm-dsr07-1	II		SBI-07-1	9.9	Xtxp40*	Xisep0805	4.4	B35	7.8	-0.98	[18, 76]
	QSpadm-dsr02-3	AV		SBI-02-3	50.4	Xtxp7*	Xisep0841	3.2	B35	5.3	-0.93	[10, 18, 54, 76]
	QSpadm-dsr09-1	II		SBI-09-1	18.7	Xisp318*	Xdhsbm10	2.5^#	B35	4.2	-0.69	New
Green leaves at booting (GLB)	QGlb-dsr03a	AV, I, II, II		SBI-03	75.7	Xisep0114*	XnhsbSFCILP67	6.6	B35	18.7	-0.33	[10, 17, 18, 74–76]
	*QGlb-dsr09-3*	M, AV, II, III	Yes	SBI-09-3	3.0	S18*	Xgap206	5.4	M35-1	18.4	0.29	[17, 54]
	*QGlb-dsr01-1a*	M, AV, I, II	No	SBI-01-1	12.0	Xisp314	Xtxp208*	6.5	B35	15.7	-0.25	New
	QGlb-dsr01-1b	III		SBI-01-1	51.5	Xisp269*	XnhsbSFCILP95	2.8^#	B35	6.6	-0.22	[17, 54, 76]
	QGlb-dsr04-1	AV, I		SBI-04-1	46.2	Xisp230*	gpsb050	3.2	M35-1	5.6	0.28	New
	*QGlb-dsr03b*	M, II	Yes	SBI-03	84.8	XnhsbSFCILP67	Xtxp31*	2.7^#	B35	4.9	-0.23	[10, 17, 18, 74–76]
	QGlb-dsr02-1	II		SBI-02-1	20.1	Xtxp197*	Xcup64	2.7^#	M35-1	4.8	0.20	New
	QGlb-dsr04-3	II		SBI-04-3	1.0	Xtxp097*	Xtxp104	2.6^#	B35	3.8	-0.17	New
Green leaves at maturity (GLM)	QGlm-dsr03a	AV, I, II, II		SBI-03	84.8	XnhsbSFCILP67*	Xtxp31	8.1	B35	15.9	-0.39	[10, 17, 18, 74–76]
	QGlm-dsr02-3a	AV, I, II		SBI-02-3	38.6	Xtxp348	Xisp259*	7.7	B35	13.9	-0.32	[10, 18, 54, 76]
	*QGlm-dsr09-3*	M, AV, I, II	No	SBI-09-3	0.0	S18*	Xgap206	6.4	M35-1	8.7	0.31	[17, 54]
	QGlm-dsr02-3b	AV, I		SBI-02-3	45.7	Xtxp100	Xtxp207*	4.2	B35	8.2	-0.38	[10, 18, 54, 76]
	*QGlm-dsr03b*	M, AV	No	SBI-03	67.5	Xtxp267	Xtxp33*	4.7	B35	6.7	-0.23	[54]
	QGlm-dsr07-2	AV		SBI-07-2	33.8	Xtxp295	Xisp344*	4.0	M35-1	6.6	0.25	[76]
	QGlm-dsr01-1	II		SBI-01-1	47.5	Xisp269	XnhsbSFCILP95*	3.5	B35	5.2	-0.25	[17, 54, 76]
	*QGlm-dsr02-3c*	M, II	No	SBI-02-3	49.4	Xtxp7*	Xisep0841	3.9	B35	5.1	-0.23	[10, 18, 54, 76]
	*QGlm-dsr04-1*	M, II	Yes	SBI-04-1	47.2	Xisp230	gpsb050*	3.7	M35-1	5.0	0.24	New
	QGlm-dsr09-2	AV		SBI-09-2	6.0	Unnhsbm178	Stgnhsbm19*	2.6^#	M35-1	4.1	0.21	New
Per cent green leaves retained at maturity (PGLM)	*QPglm-dsr02-3a*	M, AV, I, II, III	No	SBI-02-3	57.9	Xtxp296*	Xtxp8	6.8	B35	14.9	-3.25	[10, 18, 54, 76]
	QPglm-dsr07-2	AV, I		SBI-07-2	31.9	Xtxp295	Xisp344*	4.2	M35-1	10.3	2.71	[76]
	QPglm-dsr07-1a	AV, III		SBI-07-1	4.0	Xisp362*	Xtxp40	3.5	B35	10.0	-2.84	[18, 74, 76]
	QPglm-dsr09-3	AV, I, II		SBI-09-3	3.0	S18	Xgap206*	3.8	M35-1	7.2	4.05	[17, 54]
	QPglm-dsr01-2	II		SBI-01-2	17.6	Xtxp43*	Xtxp329	4.6	B35	7.1	-2.15	[17, 54, 76]
	QPglm-dsr04-2	I		SBI-04-2	118.1	Xisep0234	Unnhsbm265*	3.6	B35	6.4	-3.82	New
	QPglm-dsr02-3b	I		SBI-02-3	49.4	Xtxp7*	Xisep0841	3.1	B35	5.7	-3.65	[10, 18, 54, 76]
	QPglm-dsr09-2	AV		SBI-09-2	9.0	Unnhsbm178	Stgnhsbm19*	2.8^#	M35-1	5.3	2.10	New
	QPglm-dsr03	II		SBI-03	83.8	XnhsbSFCILP67*	Xtxp31	2.9^#	B35	4.9	-1.84	[10, 17, 18, 74–76]
	*QPglm-dsr07-1b*	M, II	Yes	SBI-07-1	25.8	Xisep0805	Xtxp312*	2.8^#	M35-1	4.9	1.85	[18, 74, 76]
Green leaf area at booting (GLAB)	QGlab-dsr03a	AV, I, II, II		SBI-03	70.0	Xtxp33*	Xisep0114	6.2	B35	15.5	-125.63	[10, 17, 18, 74–76]
	*QGlab-dsr09-3*	M, AV, II, III	No	SBI-09-3	3.0	S18*	Xgap206	5.2	M35-1	10.6	100.77	[17, 54]
	*QGlab-dsr01-1a*	M, AV, I, II	No	SBI-01-1	50.5	Xisp269	XnhsbSFCILP95*	4.6	B35	9.3	-114.12	[17, 54, 76]
	QGlab-dsr03b	I		SBI-03	102.3	Xtxp218*	SbAGE1	2.9^#	B35	4.9	-92.64	[10, 18, 76]
	*QGlab-dsr10-1*	M, I	Yes	SBI-10-1	3.0	Unnhsbm105*	Unnhsbm217	2.9^#	M35-1	4.9	98.29	New
	QGlab-dsr02-1	II		SBI-02-1	16.1	Xtxp197*	Xcup64	3.2	M35-1	4.8	91.52	New
	QGlab-dsr02-2	II		SBI-02-2	27.0	Xtxp013*	Xisp280	3.0	M35-1	4.7	92.81	New
Green leaf area at maturity (GLAM)	*QGlam-dsr03a*	M, AV, I, II, II	Yes	SBI-03	86.8	XnhsbSFCILP67*	Xtxp31	4.7	B35	12.6	-105.69	[10, 17, 18, 74–76]
	*QGlam-dsr02-3a*	M, AV, II, III	Yes	SBI-02-3	55.9	Xisep0841	Xtxp296*	3.0	B35	10.7	-61.58	[10, 18, 54, 76]
	*QGlam-dsr09-3*	M, AV, I, II	No	SBI-09-3	0.0	S18*	Xgap206	3.7	M35-1	6.3	89.54	[17, 54]
	QGlam-dsr03b	AV, I		SBI-03	68.0	Xtxp267	Xtxp33*	3.5	B35	5.9	-60.56	[10, 17, 18, 74–76]
	QGlam-dsr02-3b	AV		SBI-02-3	42.7	Xisp259	Xtxp100*	3.3	B35	5.7	-60.31	[10, 18, 54, 76]
Per cent green leaf area at maturity (PGLAM)	*QPglam-dsr02-3*	M, AV, I, II, II	Yes	SBI-02-3	54.9	Xisep0841	Xtxp296*	5.1	B35	13.1	-5.04	[10, 18, 54, 76]
Per cent green leaf area at maturity (PGLAM)	*QPglam-dsr03*	M, AV, I, II, II	Yes	SBI-03	87.0	XnhsbSFCILP67*	Xtxp31	3.3	B35	8.4	-4.30	[10, 17, 18, 74–76]
Rate of leaf senescence (RLS)	QRls-dsr10-1	AV, I, II, II		SBI-10-1	10.9	Xisep0604	Xisp326*	3.3	M35-1	10.5	1.20	New
Grain yield per panicle (GY)	QGY-dsr06-1	M, AV, I, II	Yes	SBI-06-1	6.0	Xtxp6*	Xtxp127	6.0	M35-1	11.4	2.68	[75, 77]
	QGY-dsr09-2	M, AV, II	No	SBI-09-2	3.0	Unnhsbm178*	Stgnhsbm19	4.2	M35-1	7.3	2.08	[78]
	QGY-dsr04-1	AV, I		SBI-04-1	46.2	Xcup23	Xisp230*	3.5	M35-1	6.4	3.37	[77]
	QGY-dsr09-1	M, AV, II	Yes	SBI-09-1	11.9	Xgap15	Xcup2*	3.8	M35-1	5.9	2.29	[78]
	QGY-dsr03	AV, II		SBI-03	124.9	Xisp332	Undhsbm314*	2.5^#	B35	4.0	-1.92	[77, 79]
	QGY-dsr09-3	II		SBI-09-3	0.0	S18*	Xgap206	2.8^#	M35-1	4.0	1.95	[77, 78]

*Nearest marker to QTL position. Seasons I, II, III, AV (average) and M (multi-season) indicate QTL detected in the seasons Post-rainy 2006, Post-rainy 2007, Post-rainy 2008, across all seasons and in multi-season analysis, respectively; ^aAdditive effect of M35-1. A positive value implies that the M35-1 allele increased phenotypic value, whereas a negative value implies that the M35-1 allele decreased phenotypic value. A QTL effect with bold and underlined indicates inversion of effect in Multi-season QTL analysis; ^b R² (%) is percentage of phenotypic variation explained by individual QTL; ^#Suggestive QTL (LOD <3.0); ^@QTL in bold are identified in multi-environment QTL analysis also.

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