Identification and fine mapping of qGR6.2, a novel locus controlling rice seed germination under salt stress

BMC Plant Biology

Table 2 QTLs analysis of seed germination traits among BC₁F₂ population under H₂O and 300 mM NaCl conditions

Treatments	Traits	QTLs	Days after imbibition	Chr.	Left Marker	Right Marker	LOD	PVE (%)	Add	Dom
H₂O (control)	GR	qGR3.1	3	3	Y25	W33	3.22	7.32	−4.92	5.87
		qGR3.2	3	3	RM6832	RM3513	4.00	9.36	−5.52	6.08
		qGR3.3	3	3	RM3513	RM8277	3.57	9.75	−5.35	4.77
		qGR6.1	3	6	RM190	Z602	6.11	23.99	−8.51	3.73
		qGR8.1	2	8	RM3572	RM6208	3.32	15.75	−6.69	−14.58
		qGR8.2	2	8	RM6208	Y61	3.42	14.97	−8.81	−11.51
		qGR10.1	2	10	W13	W20	3.33	9.25	−9.95	−1.11
		qGR10.1	3	10	W13	W20	3.33	8.95	−3.93	2.89
		qGR10.2	3	10	W20	RM6824	3.36	8.66	−4.01	3.10
	GI	qGI6.1		6	RM190	Z602	3.69	10.39	−0.44	0.04
	GI	qGI10.1		10	W13	W20	3.28	8.86	−0.36	0.06
300 mM NaCl	GR	qGR6.1	13	6	RM190	Z602	3.14	7.07	−5.40	4.54
		qGR6.2	7	6	Z604	RM276	8.80	20.14	−1.86	−19.02
			9	6	Z604	RM276	10.56	23.82	−1.30	−18.69
			11	6	Z604	RM276	9.93	22.18	−1.24	−15.48
			13	6	Z604	RM276	10.58	23.54	−1.19	−12.69
		qGR8.1	5	8	RM3572	RM6208	4.00	18.80	−7.76	−8.00
		qGR8.2	5	8	RM6208	Y61	3.84	14.48	−7.17	−6.24
		qGR10.1	5	10	W13	W20	3.89	11.74	−7.65	−3.37
			7	10	W13	W20	5.69	14.07	−11.00	2.90
			9	10	W13	W20	6.19	14.90	−9.81	3.75
			11	10	W13	W20	6.59	16.22	−8.63	4.33
			13	10	W13	W20	5.94	14.35	−6.54	3.15
		qGR10.2	7	10	W20	RM6824	4.40	9.49	−9.66	0.59
			9	10	W20	RM6824	5.35	11.20	−9.30	0.92
			11	10	W20	RM6824	5.78	12.16	−8.36	1.08
			13	10	W20	RM6824	5.53	11.52	−6.52	1.19
		qGI6.2		6	Z604	RM276	11.20	24.39	−0.05	−0.72
	GI	qGI10.1		10	W13	W20	7.50	17.41	−0.41	0.14
	GI	qGI10.2		10	W20	RM6824	6.50	13.18	−0.38	0.05

GR germination rate, GI germination index, Chr. chromosome, LOD the likelihood of odds, PVE phenotypic variation explained by each QTL, ADD additive effect is the effect of substituting a WJZ allele for a Nip allele, and its negative value indicates that WJZ contains the positive allele, DOM dominance effect

ISSN: 1471-2229