Genetic parameters estimation for growth traits in cultured tiger pufferfish (fugu), Takifugu rubripes

文献类型： 外文期刊

第一作者： Wang, Xin'an

作者： Wang, Xin'an;Ma, Aijun;Liu, Zhifeng;Sun, Zhibin;Zhu, Liguang;Chang, Haowen;Wang, Xin'an;Ma, Aijun;Liu, Zhifeng;Sun, Zhibin;Zhu, Liguang;Chang, Haowen;Wang, Xin'an;Ma, Aijun;Liu, Zhifeng;Sun, Zhibin;Zhu, Liguang;Chang, Haowen;Wang, Xin'an;Ma, Aijun;Liu, Zhifeng;Sun, Zhibin;Zhu, Liguang;Chang, Haowen

作者机构： Chinese Acad Fishery Sci, Yellow Sea Fisheries Res Inst, Qingdao 266071, Peoples R China;Minist Agr & Rural Affairs, Key Lab Sustainable Dev Marine Fisheries, Qingdao 266071, Peoples R China;Qingdao Key Lab Marine Fish Breeding & Biotechnol, Qingdao 266071, Peoples R China;Pilot Natl Lab Marine Sci & Technol Qingdao, Lab Marine Biol & Biotechnol, Qingdao 266071, Peoples R China

关键词： family; genetic evaluation; heritability; genetic correlation

期刊名称：ACTA OCEANOLOGICA SINICA （ 2022影响因子：1.4； 五年影响因子：1.6 ）

ISSN： 0253-505X

年卷期： 2022 年 41 卷 12 期

页码：

收录情况： SCI

摘要： The aim of this study was to evaluate the genetic parameters of the growth performance of Takifugu rubripes. Heritabilities and genetic correlations were estimated for body weight (BW), body length (BL), total length (TL), chest measurement (CM) and trunk length (TKL) of T. rubripes from measurements of progeny at 6 months and 12 months. The results showed that the heritability was 0.37 for BW6, 0.19 for BL6, 0.35 for TL6, 0.29 for CM6, 0.26 for TKL6, 0.36 for BW12, 0.26 for BL12, 0.25 for TL12, 0.31 for CM12 and 0.15 for TKL12. The range of genetic correlations estimated at 6 months was 0.025-0.725 and -0.002-0.706 at 12 months. The results indicated that genetic improvement for faster growth rate or increased body weight in cultured T. rubripes was effective. Based on selection theory, the selection strategy for traits with medium heritability is flexible. Considering that these growth traits do not reach the high level of heritability, family selection should be expected. Given positive genetic correlations among BW, BL, TL, CM, and TKL at 6 months, the five traits could be improved simultaneously through selective breeding. As there was high genetic correlation only between BW12, BL12 and TL12, and negative correlations between TKL12 and BL12 as well as between CM12 and TL12, and only BW, BL and TL at 12 months could be improved simultaneously.

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