Identification and Validation of QTLs for Macronutrient Contents in Brown and Milled Rice Using Two Backcross Populations between Oryza sativa and O. rufipogon

Table 4

QTLs for Mg and Ca contents in brown and milled rice detected in the BC₂F_4:5 population.

Trial	Tissue	Element	QTL	Interval	LOD				Previous reports
HZ16	Brown rice	Mg	qMg1	RM10300-RM10345	4.86	−41.76	−18.81	15.50	[11]
		Ca	qCa1.1	RM10300-RM10345	8.73	−9.00	−4.36	15.10	[34]
			qCa4.1	RM273-RM303	3.12	17.88	−4.93	13.60
			qCa6.1	RM588-RM204	9.62	10.11	9.66	17.20	[5, 13, 37]
			qCa11	RM21-RM206	7.27	−5.17	10.56	13.50	[14]
HZ17	Brown rice	Ca	qCa1.1	RM10300-RM10345	2.62	−11.93	7.34	19.90	[34]
			qCa4.1	RM273-RM303	2.53	6.61	8.60	19.60
	Milled rice	Mg	qMg4.1	RM348-RM131	3.38	33.59	−81.32	17.90
			qMg9.1	RM1896-RM24152	2.91	65.49	−19.67	17.70
			qMg11	RM254-RM7163	14.56	45.72	−7.32	63.39	[11, 33]
		Ca	qCa1.1	RM10300-RM10345	2.54	−6.75	5.68	18.77	[34]
			qCa4.2	RM348-RM131	2.88	−2.98	13.58	53.38	[15, 16]

indicates an additive effect of replacing a Xieqingzao B allele by a Dongxiang wild rice allele; indicates the proportion of phenotypic variance explained by the QTL effect.