| LYU Ding,WANG Weiji,LUAN Sheng,HU Yulong,GUAN Jiantao,LI Zhixiang,WU Huanhuan,KONG Jie,LIU Shoutang. 2018. Genetic parameters and response to selection for body weight in turbot (Scophthalmus maximus, Linnaeus). Acta Oceanologica Sinica, 37(6):47－51 |
| Genetic parameters and response to selection for body weight in turbot (Scophthalmus maximus, Linnaeus) |
| 大菱鲆体重性状遗传参数及选育遗传进展研究 |
| Received:May 17, 2017 Revised:September 05, 2017 |
| DOI：10.1007/s13131-018-1150-3 |
| Key words:turbot genetic parameter selective breeding body weight Scophthalmus maximus |
| 中文关键词: 大菱鲆 遗传参数 选择育种 体重 |
| 基金项目:The Taishan Scholar Program for Seed Industry under contract No. ZR2014CQ001; the Accurate Identification and Selection Breeding Creative Utilization of Turbot Germplasm Resources under contract No. 2016LZGC031-2. |
| Author Name | Affiliation | E-mail | | LYU Ding | Wuxi Fisheries College, Nanjing Agricultural University, Wuxi 214081, China
Key Laboratory for Sustainable Utilization of Marine Fisheries Resources of Ministry of Agriculture, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, China | | | WANG Weiji | Key Laboratory for Sustainable Utilization of Marine Fisheries Resources of Ministry of Agriculture, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, China | | | LUAN Sheng | Key Laboratory for Sustainable Utilization of Marine Fisheries Resources of Ministry of Agriculture, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, China | | | HU Yulong | Key Laboratory for Sustainable Utilization of Marine Fisheries Resources of Ministry of Agriculture, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, China | | | GUAN Jiantao | Key Laboratory for Sustainable Utilization of Marine Fisheries Resources of Ministry of Agriculture, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, China | | | LI Zhixiang | Key Laboratory for Sustainable Utilization of Marine Fisheries Resources of Ministry of Agriculture, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, China | | | WU Huanhuan | Key Laboratory for Sustainable Utilization of Marine Fisheries Resources of Ministry of Agriculture, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, China | | | KONG Jie | Wuxi Fisheries College, Nanjing Agricultural University, Wuxi 214081, China
Key Laboratory for Sustainable Utilization of Marine Fisheries Resources of Ministry of Agriculture, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, China | kongjie@ysfri.ac.cn | | LIU Shoutang | Yellow Sea Fisheries Limited Company, Haiyang 265122, China | |
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| Abstract: |
| Genetic parameters and response to selection were estimated for harvest body weight in turbot. The data consisted of 10 952 individuals of 508 full-sib families from three generations (G0, G1, and G2). The heritability estimates for G0, G1, and G2 were 0.11±0.08, 0.18±0.09, and 0.17±0.07, respectively. Over three generations, the heritability estimate was 0.19±0.04. Maternal and common environmental effects were 0.10±0.04, 0.14±0.04, and 0.13±0.03 within each generation and 0.12±0.01 across generations. The selection differential in growth was 18.24 g in G0 and 21.19 g in G1 corresponding to an average of 19.72 g per generation. The genetic gains were also calculated, they were 22.06 g in G1 and 11.93 g in G2, corresponding to 6.36% and 3.52% body weight. The total genetic gain after two generations was 10.10% body weight, which indicated that the selective breeding program for the body weight trait in turbot was successful. |
| 中文摘要: |
| 本研究估计了大菱鲆收获体重性状的遗传参数和选育遗传进展。数据共包括3个世代（G0，G1，G2）的508个全同胞家系10952尾个体。G0，G1，G2的体重估计遗传力分别为0.11±0.08，0.18±0.09，0.17±0.07；世代间估计遗传力为0.19±0.04。每一世代母本和共同环境效应分别为0.10±0.04，0.14±0.04，0.13±0.03；世代间为0.12±0.01。G0和G1世代选择差分别为,18.24g和21.19g。对应的G1和G2世代的遗传进展为22.06g，11.93g；百分比表示分别为6.36%，3.52%。连续两代选择之后总遗传进展为10.10%。以上结果说明针对大菱鲆体重性状的选育项目是成功的。 |
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