红鳍东方鲀幼鱼阶段生长性状的遗传力估计

doi:10.14012/j.cnki.fjsc.2024.01.003

摘要/Abstract

摘要：

为了获得红鳍东方鲀(Takifugu rubripes)幼鱼阶段的生长性状遗传力,发挥遗传力在指导育种工作中的重要作用,本研究分别对1、2、4月龄的2 900尾红鳍东方鲀幼鱼(2022年构筑构建的红鳍东方鲀全同胞家系)的体质量、体长和全长进行测量,分别通过全同胞相关法及其公式、Pearson系数、同胞协方差法对这3项生长性状的数据进行遗传力估计、表型相关和遗传相关分析。结果表明:1月龄红鳍东方鲀幼鱼体质量遗传力达到了0.54,体长遗传力、全长遗传力分别为0.39、0.36,均属于高遗传力;体长、体质量间的遗传相关为0.889,表型相关为0.851;体质量、全长间的遗传相关为0.873,表型相关为0.864;体长、全长间的遗传相关为0.947,表型相关为0.894。2月龄体质量、体长以及全长遗传力分别为0.28、0.23、0.25,均属于中等遗传力;体长、体质量间的遗传相关为0.828,表型相关为0.917;体质量、全长间的遗传相关为0.820,表型相关为0.932;体长、全长间的遗传相关为0.897,表型相关为0.952。4月龄的体质量、体长以及全长遗传力分别为0.23、0.29、0.29,均属于中等遗传力:体长、体质量间的遗传相关为0.769,表型相关为0.779;体质量、全长间的遗传相关为0.726,表型相关为0.801;体长、全长间的遗传相关为0.912,表型相关为0.941。研究结果可为后续红鳍东方鲀的品种选育提供参考。

关键词: 红鳍东方鲀, 生长性状, 遗传力, 遗传相关

Abstract:

In order to obtain the heritability of growth traits in juvenile T.rubripes,and to exert the important role of heritability in guiding breeding work,the body mass,body length and total length of 2 900 juvenile T.rubripes at 1,2 and 4 months old were measured using the whole sib family of T.rubripes constructed in 2022.The heritability of these three growth traits was estimated by the whole sib correlation method and its formula.The phenotypic correlations among these three growth traits were calculated by Pearson coefficient.The genetic correlation of these three growth traits was calculated by sib covariance method.The results showed that the heritability of the 1-month-old juvenile T.rubripes was 0.54 (body mass heritability),0.39 (body length heritability) and 0.36 (full length heritability),respectively,all of which belonged to the high heritability.The genetic correlation between body length and body mass was 0.889 and the phenotypic correlation was 0.851.The genetic and phenotypic correlations of body mass were 0.873 and 0.864,respectively.The genetic correlation between body length and total length was 0.947 and the phenotypic correlation was 0.894.Heritability of body mass,body length and full-length at 2 months old were 0.28,0.23 and 0.25,respectively,all belonging to the medium heritability.The genetic correlation between body length and body mass was 0.828 and phenotypic correlation was 0.917.The genetic correlation and phenotypic correlation were 0.820 and 0.932,respectively.The genetic correlation between body length and total length was 0.897 and the phenotypic correlation was 0.952.At 4 months old,the heritability of body mass,body length and full length were 0.23,0.29 and 0.29,respectively,which belonged to the medium heritability.The genetic correlation between body length and body mass was 0.769,the phenotypic correlation was 0.779,the genetic correlation between body mass and body length was 0.726,and the phenotypic correlation was 0.801.The genetic and phenotypic correlations between body length and total length were 0.912 and 0.941,respectively.The results of this study can provide reference for the subsequent breeding of T.rubripes.

Key words: Takifugu rubripes, growth traits, heritability, genetic correlation

中图分类号:

S917

潘寒柏, 于海龙, 田燚, 曹立蓉, 马文超, 徐明杰, 王昱森, 王培洋, 向雪建, 仇雪梅, 包玉龙, 刘圣聪, 王秀利. 红鳍东方鲀幼鱼阶段生长性状的遗传力估计[J]. 渔业研究, 2024, 46(1): 19-28.

PAN Hanbai, YU Hailong, TIAN Yi, CAO Lirong, MA Wenchao, XU Mingjie, WANG Yusen, WANG Peiyang, XIANG Xuejian, QIU Xuemei, BAO Yulong, LIU Shengcong, WANG Xiuli. Estimation of heritability of growth traits in the juvenile fish stages of Takifugu rubripes[J]. Journal of Fisheries Research, 2024, 46(1): 19-28.

图/表 8

表1 表型值方差分析和均方构成

Tab.1 Analysis of variance of phenotype values and mean square composition

变异来源 Source of variation	自由度(df) Degree of freedom	平方和(SS) Sum of square	均方(MS) Mean square	期望均方[E(MS)] Expected mean square
家系间 Inter the family	F-1	SS_F	MS_F	n₀ $σ F 2$ + $σ E 2$
家系内 Within the family	N-F	SS_E	MS_E	$σ E 2$
总和 Summation	N-1	SS_T

表1 表型值方差分析和均方构成

Tab.1 Analysis of variance of phenotype values and mean square composition

变异来源 Source of variation	自由度(df) Degree of freedom	平方和(SS) Sum of square	均方(MS) Mean square	期望均方[E(MS)] Expected mean square
家系间 Inter the family	F-1	SS_F	MS_F	n₀ $σ F 2$ + $σ E 2$
家系内 Within the family	N-F	SS_E	MS_E	$σ E 2$
总和 Summation	N-1	SS_T

表2 1月龄红鳍东方鲀幼鱼各项生长性状数据分析

Tab.2 Data analysis of various growth traits of 1 month old juvenile T.rubripes

家系 Family	样本数 Number of samples	体质量/g Body mass		体长/mm Body length		全长/mm Total length
家系 Family	样本数 Number of samples	平均值± 标准差 $\bar{x}±SD$	变异系数% Coefficient of variation	平均值± 标准差 $\bar{x}±SD$	变异系数% Coefficient of variation	平均值± 标准差 $\bar{x}±SD$	变异系数% Coefficient of variation
1	100	0.92±0.39	43.06	26.07±3.08	11.83	30.80±4.09	13.27
2	100	0.85±0.28	32.43	26.97±3.37	12.49	31.97±3.99	12.50
3	100	0.76±0.26	34.63	25.13±2.82	11.24	30.40±3.52	11.58
4	100	0.79±0.25	32.22	26.30±5.07	19.29	33.10±3.79	11.48
5	100	1.15±0.32	28.16	28.17±3.11	11.04	34.57±3.66	10.60
7	100	0.81±0.22	26.86	25.57±2.39	9.34	29.43±3.02	10.28
8	100	1.05±0.35	33.69	27.57±2.84	10.31	32.87±4.07	12.37
10	100	1.41±0.45	31.90	29.47±3.28	11.12	33.83±7.46	22.05
11	100	0.74±0.17	22.43	24.47±1.85	7.57	28.63±2.63	9.19
12	100	1.04±0.26	25.43	27.77±2.61	9.40	33.30±3.72	11.16
13	100	1.05±0.29	28.46	26.97±3.49	12.94	33.53±4.17	12.43
14	100	0.77±0.26	34.05	25.20±2.92	11.58	30.37±4.23	13.93
15	100	1.10±0.44	40.38	29.50±4.52	15.34	35.30±5.67	16.06
16	100	2.15±0.54	25.18	35.30±3.66	10.37	42.97±4.26	9.92
17	100	1.06±0.35	33.45	27.73±2.89	10.46	33.80±3.85	11.38
18	100	0.97±0.22	23.01	27.70±2.69	9.72	33.10±3.38	10.20
19	100	0.85±0.38	44.22	25.53±3.75	14.68	31.17±5.19	16.66
20	100	0.98±0.28	28.50	24.37±2.55	10.48	31.03±3.42	11.02
21	100	0.76±0.25	32.67	24.50±5.01	20.44	31.13±3.24	10.42
22	100	0.78±0.30	38.25	26.07±3.89	14.94	32.13±4.85	15.09
23	100	0.89±0.34	38.44	27.07±3.57	13.19	33.07±4.77	14.43
24	100	0.62±0.22	34.74	24.57±2.72	11.09	29.40±4.06	13.83
25	100	0.46±0.14	31.06	22.33±4.57	20.48	28.43±3.07	10.80
26	100	0.51±0.16	30.68	22.53±2.62	11.64	27.70±3.28	11.85
27	100	0.84±0.27	32.19	25.30±3.09	12.20	31.00±3.72	12.01
28	100	0.68±0.18	27.40	24.80±2.73	11.03	30.57±3.48	11.39
29	100	0.65±0.16	24.15	21.47±4.17	19.45	27.10±2.29	8.47
30	100	0.51±0.16	30.73	22.20±2.47	11.12	26.60±3.17	11.91
32	100	0.53±0.22	40.38	23.30±3.28	14.08	28.67±4.36	15.20

表2 1月龄红鳍东方鲀幼鱼各项生长性状数据分析

Tab.2 Data analysis of various growth traits of 1 month old juvenile T.rubripes

家系 Family	样本数 Number of samples	体质量/g Body mass		体长/mm Body length		全长/mm Total length
家系 Family	样本数 Number of samples	平均值± 标准差 $\bar{x}±SD$	变异系数% Coefficient of variation	平均值± 标准差 $\bar{x}±SD$	变异系数% Coefficient of variation	平均值± 标准差 $\bar{x}±SD$	变异系数% Coefficient of variation
1	100	0.92±0.39	43.06	26.07±3.08	11.83	30.80±4.09	13.27
2	100	0.85±0.28	32.43	26.97±3.37	12.49	31.97±3.99	12.50
3	100	0.76±0.26	34.63	25.13±2.82	11.24	30.40±3.52	11.58
4	100	0.79±0.25	32.22	26.30±5.07	19.29	33.10±3.79	11.48
5	100	1.15±0.32	28.16	28.17±3.11	11.04	34.57±3.66	10.60
7	100	0.81±0.22	26.86	25.57±2.39	9.34	29.43±3.02	10.28
8	100	1.05±0.35	33.69	27.57±2.84	10.31	32.87±4.07	12.37
10	100	1.41±0.45	31.90	29.47±3.28	11.12	33.83±7.46	22.05
11	100	0.74±0.17	22.43	24.47±1.85	7.57	28.63±2.63	9.19
12	100	1.04±0.26	25.43	27.77±2.61	9.40	33.30±3.72	11.16
13	100	1.05±0.29	28.46	26.97±3.49	12.94	33.53±4.17	12.43
14	100	0.77±0.26	34.05	25.20±2.92	11.58	30.37±4.23	13.93
15	100	1.10±0.44	40.38	29.50±4.52	15.34	35.30±5.67	16.06
16	100	2.15±0.54	25.18	35.30±3.66	10.37	42.97±4.26	9.92
17	100	1.06±0.35	33.45	27.73±2.89	10.46	33.80±3.85	11.38
18	100	0.97±0.22	23.01	27.70±2.69	9.72	33.10±3.38	10.20
19	100	0.85±0.38	44.22	25.53±3.75	14.68	31.17±5.19	16.66
20	100	0.98±0.28	28.50	24.37±2.55	10.48	31.03±3.42	11.02
21	100	0.76±0.25	32.67	24.50±5.01	20.44	31.13±3.24	10.42
22	100	0.78±0.30	38.25	26.07±3.89	14.94	32.13±4.85	15.09
23	100	0.89±0.34	38.44	27.07±3.57	13.19	33.07±4.77	14.43
24	100	0.62±0.22	34.74	24.57±2.72	11.09	29.40±4.06	13.83
25	100	0.46±0.14	31.06	22.33±4.57	20.48	28.43±3.07	10.80
26	100	0.51±0.16	30.68	22.53±2.62	11.64	27.70±3.28	11.85
27	100	0.84±0.27	32.19	25.30±3.09	12.20	31.00±3.72	12.01
28	100	0.68±0.18	27.40	24.80±2.73	11.03	30.57±3.48	11.39
29	100	0.65±0.16	24.15	21.47±4.17	19.45	27.10±2.29	8.47
30	100	0.51±0.16	30.73	22.20±2.47	11.12	26.60±3.17	11.91
32	100	0.53±0.22	40.38	23.30±3.28	14.08	28.67±4.36	15.20

表3 2月龄红鳍东方鲀幼鱼各项生长性状数据分析

Tab.3 Data analysis of various growth traits of 2 months old juvenile T.rubripes

家系 Family	样本数 Number of samples	体质量/g Body mass		体长/mm Body length		全长/mm Total length
家系 Family	样本数 Number of samples	平均值± 标准差 $\bar{x}±SD$	变异系数% Coefficient of variation	平均值± 标准差 $\bar{x}±SD$	变异系数% Coefficient of variation	平均值± 标准差 $\bar{x}±SD$	变异系数% Coefficient of variation
1	100	4.45±2.09	46.88	48.13±8.40	17.46	57.21±10.53	18.40
2	100	4.64±1.51	32.52	48.97±7.63	15.58	59.38±7.92	13.34
3	100	3.96±1.63	41.39	45.49±7.29	15.91	54.06±10.23	18.92
4	100	3.77±1.53	40.43	45.49±8.22	18.06	56.62±8.86	15.64
5	100	5.81±2.47	42.58	50.44±8.44	16.73	61.58±10.77	17.49
7	100	6.39±2.23	34.97	54.50±7.04	12.91	65.29±8.89	13.62
8	100	6.52±2.66	40.88	52.33±8.47	16.18	63.99±11.29	17.65
10	100	7.62±2.56	33.58	56.91±8.02	14.09	68.63±9.49	13.82
11	100	5.68±1.97	34.75	51.68±6.78	13.12	63.06±9.26	14.68
12	100	6.30±2.19	34.74	54.41±7.26	13.34	66.35±9.57	14.42
13	100	6.01±2.38	39.76	52.47±7.90	15.06	64.58±10.49	16.24
14	100	5.88±1.81	30.72	52.14±7.85	15.05	65.10±7.76	11.92
15	100	6.82±2.38	34.88	56.73±7.47	13.18	69.27±8.69	12.53
16	100	10.74±2.77	25.75	64.61±6.27	9.71	80.47±7.54	9.37
17	100	5.02±1.69	33.72	49.92±5.86	11.73	61.68±7.59	12.31
18	100	5.59±2.13	38.10	52.74±7.52	14.25	64.40±9.29	14.44
19	100	5.34±2.09	39.34	50.82±7.04	13.86	62.18±8.43	13.56
20	100	4.99±1.48	29.61	47.21±5.41	11.47	59.19±7.05	11.92
21	100	4.96±1.98	40.10	48.61±8.86	18.23	60.02±9.15	15.25
22	100	6.86±3.31	48.21	55.93±10.56	18.89	68.99±12.57	18.21
23	100	6.28±2.22	35.41	56.17±7.20	12.82	68.96±9.12	13.23
24	100	6.31±2.26	35.80	55.59±7.21	12.97	68.53±9.01	13.15
25	100	4.99±1.59	32.00	51.36±6.44	12.54	63.00±7.50	11.91
26	100	5.06±1.68	33.29	50.24±6.56	13.05	61.51±7.65	12.43
27	100	6.93±2.53	36.51	55.10±7.82	14.19	68.21±9.64	14.13
28	100	6.13±2.08	33.97	52.33±7.04	13.45	64.19±8.39	13.07
29	100	5.00±2.36	47.26	46.90±8.85	18.87	57.90±10.95	18.92
30	100	6.18±2.08	33.66	54.00±6.92	12.82	65.50±8.77	13.40
32	100	5.49±1.82	33.23	53.20±7.31	13.74	65.51±8.57	13.07

表3 2月龄红鳍东方鲀幼鱼各项生长性状数据分析

Tab.3 Data analysis of various growth traits of 2 months old juvenile T.rubripes

家系 Family	样本数 Number of samples	体质量/g Body mass		体长/mm Body length		全长/mm Total length
家系 Family	样本数 Number of samples	平均值± 标准差 $\bar{x}±SD$	变异系数% Coefficient of variation	平均值± 标准差 $\bar{x}±SD$	变异系数% Coefficient of variation	平均值± 标准差 $\bar{x}±SD$	变异系数% Coefficient of variation
1	100	4.45±2.09	46.88	48.13±8.40	17.46	57.21±10.53	18.40
2	100	4.64±1.51	32.52	48.97±7.63	15.58	59.38±7.92	13.34
3	100	3.96±1.63	41.39	45.49±7.29	15.91	54.06±10.23	18.92
4	100	3.77±1.53	40.43	45.49±8.22	18.06	56.62±8.86	15.64
5	100	5.81±2.47	42.58	50.44±8.44	16.73	61.58±10.77	17.49
7	100	6.39±2.23	34.97	54.50±7.04	12.91	65.29±8.89	13.62
8	100	6.52±2.66	40.88	52.33±8.47	16.18	63.99±11.29	17.65
10	100	7.62±2.56	33.58	56.91±8.02	14.09	68.63±9.49	13.82
11	100	5.68±1.97	34.75	51.68±6.78	13.12	63.06±9.26	14.68
12	100	6.30±2.19	34.74	54.41±7.26	13.34	66.35±9.57	14.42
13	100	6.01±2.38	39.76	52.47±7.90	15.06	64.58±10.49	16.24
14	100	5.88±1.81	30.72	52.14±7.85	15.05	65.10±7.76	11.92
15	100	6.82±2.38	34.88	56.73±7.47	13.18	69.27±8.69	12.53
16	100	10.74±2.77	25.75	64.61±6.27	9.71	80.47±7.54	9.37
17	100	5.02±1.69	33.72	49.92±5.86	11.73	61.68±7.59	12.31
18	100	5.59±2.13	38.10	52.74±7.52	14.25	64.40±9.29	14.44
19	100	5.34±2.09	39.34	50.82±7.04	13.86	62.18±8.43	13.56
20	100	4.99±1.48	29.61	47.21±5.41	11.47	59.19±7.05	11.92
21	100	4.96±1.98	40.10	48.61±8.86	18.23	60.02±9.15	15.25
22	100	6.86±3.31	48.21	55.93±10.56	18.89	68.99±12.57	18.21
23	100	6.28±2.22	35.41	56.17±7.20	12.82	68.96±9.12	13.23
24	100	6.31±2.26	35.80	55.59±7.21	12.97	68.53±9.01	13.15
25	100	4.99±1.59	32.00	51.36±6.44	12.54	63.00±7.50	11.91
26	100	5.06±1.68	33.29	50.24±6.56	13.05	61.51±7.65	12.43
27	100	6.93±2.53	36.51	55.10±7.82	14.19	68.21±9.64	14.13
28	100	6.13±2.08	33.97	52.33±7.04	13.45	64.19±8.39	13.07
29	100	5.00±2.36	47.26	46.90±8.85	18.87	57.90±10.95	18.92
30	100	6.18±2.08	33.66	54.00±6.92	12.82	65.50±8.77	13.40
32	100	5.49±1.82	33.23	53.20±7.31	13.74	65.51±8.57	13.07

表4 4月龄红鳍东方鲀幼鱼各项生长性状数据分析

Tab.4 Data analysis of various growth traits of 4 months old juvenile T.rubripes

家系 Family	样本数 Number of samples	体质量/g Body mass		体长/mm Body length		全长/mm Total length
家系 Family	样本数 Number of samples	平均值± 标准差 $\bar{x}±SD$	变异系数% Coefficient of variation	平均值± 标准差 $\bar{x}±SD$	变异系数% Coefficient of variation	平均值± 标准差 $\bar{x}±SD$	变异系数% Coefficient of variation
1	100	76.47±9.30	12.16	137.33±5.35	3.90	157.49±8.01		5.09
2	100	67.83±8.75	12.90	132.41±5.68	4.29	147.04±6.94		4.72
3	100	67.75±14.10	20.82	127.29±6.77	5.32	141.84±8.32		5.87
4	100	66.14±11.11	16.81	127.88±6.42	5.02	144.46±7.52		5.2
5	100	73.24±14.40	19.66	128.92±8.56	6.64	148.11±10.78		7.28
7	100	61.54±8.52	13.85	125.52±5.91	4.71	140.43±6.77		4.82
8	100	62.05±11.04	17.80	123.89±6.73	5.43	140.03±8.75		6.25
10	100	80.82±14.30	17.70	133.74±7.42	5.55	150.06±8.98		5.98
11	100	62.03±10.67	17.21	126.09±6.87	5.44	142.47±9.14		6.42
12	100	70.32±11.95	16.99	129.80±7.37	5.68	144.68±8.89		6.15
13	100	77.58±10.37	13.37	133.51±6.78	5.07	150.93±8.09		5.36
14	100	60.36±11.47	19.00	127.05±6.81	5.36	145.52±8.56		5.88
15	100	75.87±12.12	15.97	133.32±6.69	5.05	148.83±8.43		5.66
16	100	71.47±9.88	13.82	134.56±5.67	4.22	153.76±7.28		4.73
17	100	66.28±9.26	13.98	127.75±5.83	4.56	143.48±6.79		4.74
18	100	67.23±11.26	16.74	130.88±7.03	5.37	146.67±7.87		5.37
19	100	75.11±10.10	13.44	132.86±5.75	4.33	151.35±8.87		5.86
20	100	62.47±10.01	16.04	122.09±6.48	5.31	139.40±7.89		5.66
21	100	77.87±10.02	12.87	138.05±5.61	4.07	154.73±7.34		4.75
22	100	78.69±14.28	18.15	138.16±7.49	5.42	158.39±8.32		5.25
23	100	66.36±10.90	16.43	131.04±6.86	5.23	149.66±8.53		5.70
24	100	67.48±10.28	15.23	130.17±6.33	4.86	147.95±8.23		5.57
25	100	59.75±9.21	15.41	123.03±6.19	5.04	138.48±8.42		6.08
26	100	63.24±8.41	13.30	126.30±5.74	4.54	141.74±6.76		4.77
27	100	71.31±10.05	14.09	131.55±5.98	4.55	151.07±7.94		5.26
28	100	73.63±10.16	13.80	131.34±6.69	5.10	153.37±8.72		5.68
29	100	65.94±8.38	12.70	127.16±6.03	4.74	144.91±7.15		4.93
30	100	66.53±10.71	16.10	132.08±6.47	4.90	147.66±7.57		5.13
32	100	70.17±9.56	13.63	132.78±6.02	4.53	148.15±6.99		4.72

表4 4月龄红鳍东方鲀幼鱼各项生长性状数据分析

Tab.4 Data analysis of various growth traits of 4 months old juvenile T.rubripes

家系 Family	样本数 Number of samples	体质量/g Body mass		体长/mm Body length		全长/mm Total length
家系 Family	样本数 Number of samples	平均值± 标准差 $\bar{x}±SD$	变异系数% Coefficient of variation	平均值± 标准差 $\bar{x}±SD$	变异系数% Coefficient of variation	平均值± 标准差 $\bar{x}±SD$	变异系数% Coefficient of variation
1	100	76.47±9.30	12.16	137.33±5.35	3.90	157.49±8.01		5.09
2	100	67.83±8.75	12.90	132.41±5.68	4.29	147.04±6.94		4.72
3	100	67.75±14.10	20.82	127.29±6.77	5.32	141.84±8.32		5.87
4	100	66.14±11.11	16.81	127.88±6.42	5.02	144.46±7.52		5.2
5	100	73.24±14.40	19.66	128.92±8.56	6.64	148.11±10.78		7.28
7	100	61.54±8.52	13.85	125.52±5.91	4.71	140.43±6.77		4.82
8	100	62.05±11.04	17.80	123.89±6.73	5.43	140.03±8.75		6.25
10	100	80.82±14.30	17.70	133.74±7.42	5.55	150.06±8.98		5.98
11	100	62.03±10.67	17.21	126.09±6.87	5.44	142.47±9.14		6.42
12	100	70.32±11.95	16.99	129.80±7.37	5.68	144.68±8.89		6.15
13	100	77.58±10.37	13.37	133.51±6.78	5.07	150.93±8.09		5.36
14	100	60.36±11.47	19.00	127.05±6.81	5.36	145.52±8.56		5.88
15	100	75.87±12.12	15.97	133.32±6.69	5.05	148.83±8.43		5.66
16	100	71.47±9.88	13.82	134.56±5.67	4.22	153.76±7.28		4.73
17	100	66.28±9.26	13.98	127.75±5.83	4.56	143.48±6.79		4.74
18	100	67.23±11.26	16.74	130.88±7.03	5.37	146.67±7.87		5.37
19	100	75.11±10.10	13.44	132.86±5.75	4.33	151.35±8.87		5.86
20	100	62.47±10.01	16.04	122.09±6.48	5.31	139.40±7.89		5.66
21	100	77.87±10.02	12.87	138.05±5.61	4.07	154.73±7.34		4.75
22	100	78.69±14.28	18.15	138.16±7.49	5.42	158.39±8.32		5.25
23	100	66.36±10.90	16.43	131.04±6.86	5.23	149.66±8.53		5.70
24	100	67.48±10.28	15.23	130.17±6.33	4.86	147.95±8.23		5.57
25	100	59.75±9.21	15.41	123.03±6.19	5.04	138.48±8.42		6.08
26	100	63.24±8.41	13.30	126.30±5.74	4.54	141.74±6.76		4.77
27	100	71.31±10.05	14.09	131.55±5.98	4.55	151.07±7.94		5.26
28	100	73.63±10.16	13.80	131.34±6.69	5.10	153.37±8.72		5.68
29	100	65.94±8.38	12.70	127.16±6.03	4.74	144.91±7.15		4.93
30	100	66.53±10.71	16.10	132.08±6.47	4.90	147.66±7.57		5.13
32	100	70.17±9.56	13.63	132.78±6.02	4.53	148.15±6.99		4.72

表5 各月龄红鳍东方鲀生长性状数据单因素方差分析

Tab.5 Analysis of single factor ANOVA for growth traits at each monthly age in T.rubripes

月龄 Month old	性状 Character	因素 Factor	平方和(SS) Sumof square	自由度(df) Degree of freedom	均方(MS) Mean square
1	体质量	家系间	89.01	28	3.07	34.67
	体质量	家系内	77.01	2 899	0.09	34.67
	体长	家系间	6 321.63	28	217.99	19.21
	体长	家系内	9 872.33	2 899	11.35	19.21
	体全长	家系间	8 452.96	28	291.48	17.61
	体全长	家系内	14 402.60	2 899	16.56	17.61
2	体质量	家系间	5 234.56	28	180.50	39.19
	体质量	家系内	13 680.31	2 899	4.61	39.19
	体长	家系间	50 734.68	28	1 749.47	31.14
	体长	家系内	166 858.28	2 899	56.18	31.14
	体全长	家系间	81 490.79	28	2 810.03	33.69
	体全长	家系内	247 735.13	2 899	83.41	33.69
4	体质量	家系间	99 592.53	28	3 556.88	29.95
	体质量	家系内	340 945.67	2 899	118.76	29.95
	体长	家系间	50 106.91	28	1 789.53	42.31
	体长	家系内	121 421.87	2 899	42.29	42.31
	体全长	家系间	78 499.86	28	2 803.57	42.61
	体全长	家系内	188 922.36	2 899	65.80	42.61

表6 各月龄红鳍东方鲀生长性状方差分析和遗传力估计

Tab.6 Variance analysis and geneticforce estimation of growth traits at each monthly age in T.rubripes

月龄 Month old	性状 Character	加性效应方差 $σ A 2$ Additive effect variance	表型方差 $σ P 2$ Phenotypic variance	残差 $σ E 2$ Residual error	遗传力h² Heritability	标准误σ_h Standard error
	体质量	0.103	0.192	0.089	0.54	0.14
1	体长	7.123	18.471	11.348	0.39	0.14
	全长	9.480	26.035	16.555	0.36	0.17
	体质量	1.777	6.383	4.606	0.28	0.05
2	体长	17.104	73.285	56.181	0.23	0.16
	全长	27.542	110.955	83.413	0.25	0.19
	体质量	34.728	153.483	118.755	0.23	0.23
4	体长	17.649	59.942	42.293	0.29	0.14
	全长	27.654	55.485	65.804	0.29	0.18

表6 各月龄红鳍东方鲀生长性状方差分析和遗传力估计

Tab.6 Variance analysis and geneticforce estimation of growth traits at each monthly age in T.rubripes

月龄 Month old	性状 Character	加性效应方差 $σ A 2$ Additive effect variance	表型方差 $σ P 2$ Phenotypic variance	残差 $σ E 2$ Residual error	遗传力h² Heritability	标准误σ_h Standard error
	体质量	0.103	0.192	0.089	0.54	0.14
1	体长	7.123	18.471	11.348	0.39	0.14
	全长	9.480	26.035	16.555	0.36	0.17
	体质量	1.777	6.383	4.606	0.28	0.05
2	体长	17.104	73.285	56.181	0.23	0.16
	全长	27.542	110.955	83.413	0.25	0.19
	体质量	34.728	153.483	118.755	0.23	0.23
4	体长	17.649	59.942	42.293	0.29	0.14
	全长	27.654	55.485	65.804	0.29	0.18

图1 红鳍东方鲀生长性状遗传力随月龄变化的情况

Fig.1 Line gram of growth traits with monthly age in T. rubripes

表7 红鳍东方鲀各月龄各性状间遗传相关与表型相关

Tab.7 Genetic and phenotypic correlations among traits at each monthly age in T.rubripes

月龄 Month old	性状Character	体质量Body mass	体长Body length	全长 Total length
1	体质量	1.000	0.889	0.873
	体长	0.851^**	1.000	0.947
	全长	0.864^**	0.894^**	1.000
2	体质量	1.000	0.828	0.820
	体长	0.917^**	1.000	0.897
	全长	0.932^**	0.952^**	1.000
4	体质量	1.000	0.769	0.726
	体长	0.779^**	1.000	0.912
	全长	0.801^**	0.941^**	1.000

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