QTL architecture of reproductive fitness characters in Brassica rapa

BMC Plant Biology

Table 1 Quantitative genetic partitioning of variance components and trait means in the field (F) and greenhouse (GH) environments

	V_L		V_R		H²(V_L/V_P)		Means (CL)
Trait	F	GH	F	GH	F	GH	F	GH
Days to bolting	0.79	0.00	5.07	0.00	0.13	0.71	40.69	23.65
							(41.12-40.26)	(21.95-25.63)
Fruit length	36.21	106.94	69.00	71.44	0.33	0.60	39.07	50.38
							(37.3-40.84)	(48.30-52.47)
Fruit total	0.48	0.64	1.05	1.36	0.30	0.30	19.12	9.44
							(15.22-24.01)	(7.78-11.26)
Seeds-per-fruit	0.03	0.57	0.31	0.77	0.08	0.42	3.41	8.52
							(2.31-4.85)	(7.49-9.61)
Seed mass	0.01	0.02	0.03	0.02	0.23	0.49	2.64	1.99
							(2.48-2.81)	(1.86-2.14)
Seed color	0.59	0.86	0.15	0.14	0.79	0.86	0.04	0.06
							(-0.11-0.19)	(-0.12-0.23)
Days to germination	-	0.00	-	0.00	-	0.26	-	3.33
								(1.50-12.92)
Germination percentage	-	0.02	-	0.04	-	0.30	-	0.98
								(0.75-1.11)

Restricted maximum likelihood estimates of the among-RIL variance component (V_L), the residual variance component (V_R), and the broad sense heritability (H²), calculated as V_L/(V_P); V_P is the total phenotypic variance component. Least-squared means (Means) and 95% confidence limits (CL). Length and height traits are in mm. Seed area and seed mass are mm² and mg, respectively. Fruit total and seed total are per plant. Seed color is a single factor principal component of red, green, and blue colors; a negative number indicates darker, more brown seeds. Germination percentage indicates the number of seeds that germinated within 10 days from planting. Germination traits were not assessed in the field.

ISSN: 1471-2229