Genetic basis of heterosis for yield and yield components explored by QTL mapping across four genetic populations in upland cotton

Li, Cong; Zhao, Tianlun; Yu, Hurong; Li, Cheng; Deng, Xiaolei; Dong, Yating; Zhang, Fan; Zhang, Yi; Mei, Lei; Chen, Jinhong; Zhu, Shuijin

doi:10.1186/s12864-018-5289-2

Table 2 Summary statistics on HB^a percentage of RILs and MPH^a percentage of IF₂s, HSBCF₁s, and MARBCF₁s

From: Genetic basis of heterosis for yield and yield components explored by QTL mapping across four genetic populations in upland cotton

Traits ^b	Env. ^c	RILHBs (%)			IF₂MPHs (%)			HSBCF₁MPHs (%)			MARBCF₁MPHs (%)
Traits ^b	Env. ^c	Mean	Min	Max	Mean	Min	Max	Mean	Min	Max	Mean	Min	Max
FB	2014Yc	−0.30	−31.42	35.35	0.81	−42.23	58.10	2.12	−38.00	53.16	5.12	−40.79	92.91
	2014Bg	−0.06	−38.80	27.24	−1.82	−47.02	50.79	−1.39	−40.00	58.10	1.85	−54.72	50.88
	2015Yc	−5.26	−26.42	20.88	9.09	−28.81	65.19	24.02	−17.60	82.42	19.75	−16.19	77.48
	2015Bg	−3.83	−28.56	36.22	8.83	−30.76	60.00	22.96	−24.61	74.36	20.77	−11.57	68.55
BN	2014Yc	−3.38	−40.43	75.28	−4.17	−60.78	123.64	−6.84	−54.26	117.56	6.92	−42.77	97.02
	2014Bg	−4.69	−43.85	61.79	−5.48	−75.94	83.63	−5.27	− 52.32	98.38	1.49	−51.19	84.91
	2015Yc	−2.21	−31.34	43.40	1.39	−54.55	169.68	4.69	−42.54	99.01	7.94	−39.35	80.71
	2015Bg	−5.03	−40.96	53.24	3.26	−47.83	195.35	7.75	−46.81	108.16	8.76	− 45.54	75.00
BW	2014Yc	3.57	−23.38	37.04	20.94	−13.49	46.43	22.46	−33.54	53.51	26.72	−32.55	84.25
	2014Bg	−0.13	−29.83	29.99	14.88	−21.42	50.79	9.21	−22.39	44.58	19.32	−14.11	59.64
	2015Yc	7.24	−17.57	29.86	5.53	−26.19	38.07	3.96	−34.60	38.65	9.06	−27.50	44.49
	2015Bg	0.30	−31.74	22.56	1.88	−39.57	60.79	0.44	−28.90	50.64	2.82	−30.24	50.49
LP	2014Yc	−0.54	−16.54	14.15	1.49	− 12.73	15.68	1.28	−14.78	21.55	−0.56	−17.03	19.13
	2014Bg	−3.12	−16.12	6.79	4.50	−18.08	22.81	0.62	−9.71	13.43	1.03	−24.67	16.02
	2015Yc	−10.13	−31.55	12.99	12.60	−22.61	70.98	6.14	−12.10	25.96	3.98	−16.26	25.57
	2015Bg	0.49	−14.87	18.32	1.43	−19.06	37.09	0.37	−18.30	30.21	−1.33	−16.73	16.19
SY	2014Yc	−7.08	−61.44	89.70	51.96	−61.43	195.90	25.01	−49.55	144.85	51.39	−49.74	137.63
	2014Bg	−5.69	−61.46	76.41	38.94	−56.93	148.05	22.05	−51.34	166.60	44.37	−40.61	115.56
	2015Yc	−3.69	−44.63	75.61	4.74	−41.94	104.71	6.68	−45.56	95.99	7.64	−47.25	96.22
	2015Bg	−11.89	−43.45	28.51	5.97	−43.89	69.82	6.32	−52.10	91.46	6.87	− 41.73	95.69
LY	2014Yc	−7.66	−63.21	83.97	46.73	−61.63	196.96	26.74	−47.72	166.46	50.53	−49.29	142.61
	2014Bg	−8.25	−64.22	76.15	45.28	−54.74	151.20	22.72	−47.82	177.90	46.02	−37.47	120.89
	2015Yc	−2.15	−45.26	84.83	4.15	−53.62	93.64	8.85	−47.44	95.35	7.32	−46.75	88.85
	2015Bg	−11.15	−45.81	32.39	7.19	−44.54	103.30	6.74	−52.48	98.55	5.39	−40.08	91.87

^aHB: hybrid breakdown value; MPH: mid-parental heterosis value
^bFB fruit branches per plant, BN boll numbers per plant, BW boll weight, LP lint percentage, SY seed cotton yield, LY lint yield
^c2014Yc: Yacheng, Hainan Province in 2014; 2014Bg: Baogang, Hainan Province in 2014; 2015Yc: Yacheng, Hainan Province in 2015; 2015Bg: Baogang, Hainan Province in 2015

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ISSN: 1471-2164

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