Genetic Parameters of Growth Traits of Carassius auratus var. pengzesis: Estimation

doi:10.11924/j.issn.1000-6850.casb20191200929

Abstract

Abstract:

To study the genetic rules of growth traits of Carassius auratus var. pengzesis, and make a breeding plan of C. auratus var. pengzesis, 23 full sibs families from Jiujiang Fisheries Research Institute were used as materials, and the raw data of growth traits (total length, body length, body height, body width, body weight) of about a-whole-year individuals were detected, and the genetic analysis was conducted with animal model. The results showed that the heritability of the above five traits was 0.64±0.17, 0.51±0.16, 0.79±0.18, 0.57±0.16, 0.65±0.17, respectively. The heritability of these traits was all at a high level. The phenotypic correlation (0.79 to 0.94) and the genetic correlation (0.95 to 1.00) between these five traits were all relatively high. All the results show that individual selection or individual selection combining with family selection will get the ideal genetic gain, and if we continue to select one of these traits, the other traits will be improved in the same time.

Key words: Carassius auratus var. pengzesis, growth related traits, heritability, genetic parameters, family selection

CLC Number:

Xu Jingen, Cao Lie, Jin Wu, He Yijin, Bing Xuwen, Wang Jianmin. Genetic Parameters of Growth Traits of Carassius auratus var. pengzesis: Estimation[J]. Chinese Agricultural Science Bulletin, 2020, 36(33): 134-137.

Figures/Tables 3

References 28

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	样本量	平均值	变异系数	标准差	偏度	峰度
总长	534	25.39	7.69	1.95	0.22	-0.52
体长	534	21.43	7.20	1.54	0.15	-0.37
体高	534	8.36	9.16	0.77	0.32	-0.44
体厚	534	4.49	10.34	0.46	0.14	-0.52
体重	534	342.96	22.72	77.93	0.33	-0.44

	样本量	平均值	变异系数	标准差	偏度	峰度
总长	534	25.39	7.69	1.95	0.22	-0.52
体长	534	21.43	7.20	1.54	0.15	-0.37
体高	534	8.36	9.16	0.77	0.32	-0.44
体厚	534	4.49	10.34	0.46	0.14	-0.52
体重	534	342.96	22.72	77.93	0.33	-0.44

	加性方差	残差	遗传力
总长	1.66	0.94	0.64±0.17
体长	0.84	0.80	0.51±0.16
体高	0.36	0.1	0.79±0.18
体厚	0.10	0.08	0.57±0.16
体重	2857.06	1529.60	0.65±0.17

	加性方差	残差	遗传力
总长	1.66	0.94	0.64±0.17
体长	0.84	0.80	0.51±0.16
体高	0.36	0.1	0.79±0.18
体厚	0.10	0.08	0.57±0.16
体重	2857.06	1529.60	0.65±0.17

	总长	体长	体高	体厚	体重
总长		1.00±0.00	0.96± 0.03	0.97±0.02	0.99± 0.01
体长	0.94±0.01		0.95± 0.03	0.97± 0.03	0.99± 0.01
体高	0.85± 0.02	0.81± 0.03		0.98± 0.02	0.98±0.01
体厚	0.79±0.03	0.79± 0.03	0.80± 0.03		1.00± 0.01
体重	0.93± 0.01	0.93± 0.01	0.87± 0.02	0.89±0.02