Crop to wild introgression in lettuce: following the fate of crop genome segments in backcross populations

Uwimana, Brigitte; Smulders, Marinus JM; Hooftman, Danny AP; Hartman, Yorike; van Tienderen, Peter H; Jansen, Johannes; McHale, Leah K; Michelmore, Richard W; Visser, Richard GF; van de Wiel, Clemens CM

doi:10.1186/1471-2229-12-43

BMC Plant Biology

Table 1 Parental means and mean, minimum and maximum values and heritability of the BC₁S₁ and BC₂S₁ families for vigour traits under non-stress, drought, salinity and nutrient deficiency conditions

From: Crop to wild introgression in lettuce: following the fate of crop genome segments in backcross populations

		L. serriola	L. sativa	Hybrid families
Trait	Treatment			Mean	Min	Max	H²
				BC₁S₁ families
Plant height (cm)	Control-D¹	31.42	23.52	30.87	27.43	36.19	0.86
	Drought	16.58	13.19	16.05	13.53	18.53	0.74
	Control- SN	33.36	17.95	28.75	22.39	42.64	0.95
	Salt	16.72	14.70	17.18	13.40	24.93	0.95
	Nutrient deficiency	10.57	8.75	10.07	7.88	13.35	0.86
Fresh weight (g)	Control-D	39.20	68.11	46.56	25.25	62.26	0.87
	Drought	6.48	8.01	6.46	5.40	8.14	0.48
	Control- SN	25.52	39.15	27.24	21.76	32.27	0.79
	Salt	8.40	20.13	10.85	7.90	14.35	0.69
	Nutrient deficiency	2.60	4.82	3.16	2.46	3.92	0.44
Dry weight (g)	Control-D	2.42	3.14	2.87	1.51	4.09	0.90
	Drought	1.15	1.38	1.16	0.93	1.41	0.80
	Control-NS	2.01	2.56	2.13	1.61	2.75	0.75
	Salt	0.84	1.79	1.07	0.74	1.43	0.59
	Nutrient deficiency	0.50	0.90	0.61	0.42	0.86	0.62
Relative moisture	Control-D	93.80	95.41	93.89	93.07	94.83	0.75
content (%)	Drought	81.97	82.56	81.77	79.26	84.74	0.69
	Control-SN	92.11	93.50	92.24	91.25	93.21	0.64
	Salt	90.00	91.18	90.18	89.23	91.24	0.67
	Nutrient deficiency	81.03^ns	81.85	80.77	77.84	85.09	0.90
				BC₂S₁ families
Plant height (cm)	Control-D¹	27.93	23.07	29.17	24.09	37.01	0.85
	Drought	14.02	12.32	14.32	12.39	17.75	0.77
	Control- SN	21.02	16.63	21.51	17.51	28.04	0.80
	Salt	16.54	13.62	16.54	13.01	22.2	0.84
	Nutrient deficiency	11.62	10.07	11.33	9.69	14.05	0.43
Fresh weight (g)	Control-D	27.21	67.25	38.59	23.38	54.89	0.73
	Drought	5.24^ns	5.46	4.55	3.31	6.32	0.37
	Control- SN	13.70	31.32	17.64	13.19	26.39	0.72
	Salt	9.31	17.87	10.35	7.27	13.36	0.63
	Nutrient deficiency	4.87	7.14	5.34	4.26	7.65	0.59
Dry weight (g)	Control-D	2.08	3.34	2.76	1.81	3.95	0.80
	Drought	1.12^ns	1.22	1.06	0.88	1.27	0.50
	Control-NS	1.03	1.88	1.31	0.96	1.94	0.71
	Salt	0.84	1.29	0.92	0.65	1.21	0.61
	Nutrient deficiency	0.68	0.83	0.71	0.50	1.16	0.76
Relative moisture	Control-D	92.28	95.06	92.86	92.06	94.03	0.78
content (%)	Drought	77.94^ns	77.53	76.12	71.72	80.39	0.77
	Control-SN	92.52	94.06	92.61	91.79	93.79	0.73
	Salt	90.95	92.85	91.24	89.92	92.36	0.76
	Nutrient deficiency	85.88	88.26	86.70	84.49	89.48	0.79

1 Control-D: the control treatment of the drought experiment, Control-SN: the control treatment of the salt-nutrient experiment

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