Heritability of growth traits in the Asian seabass (Lates calcarifer)
Growth is an economically important trait in aquaculture. To improve growth trait of the Asian seabass (Lates calcarifer) we have been carrying out, since 2004, a selective breeding program. This study focuses on growth traits in the F2 fish generation, comprised of offspring from 23 mass crosses fr...
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KeAi Communications Co., Ltd.
2017-05-01
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| Series: | Aquaculture and Fisheries |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2468550X16300326 |
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| author | Baoqing Ye Ziyi Wan Le Wang Hongyan Pang Yanfei Wen Huiming Liu Bing Liang Huan Sein Lim Junhui Jiang Genhua Yue |
| author_facet | Baoqing Ye Ziyi Wan Le Wang Hongyan Pang Yanfei Wen Huiming Liu Bing Liang Huan Sein Lim Junhui Jiang Genhua Yue |
| author_sort | Baoqing Ye |
| collection | DOAJ |
| description | Growth is an economically important trait in aquaculture. To improve growth trait of the Asian seabass (Lates calcarifer) we have been carrying out, since 2004, a selective breeding program. This study focuses on growth traits in the F2 fish generation, comprised of offspring from 23 mass crosses from 383 F1 brooders. Using genotyping analysis for 10 microsatellites from both brood stock and progeny we have reconstructed the pedigree of each mass-cross. For F2 generation at 90 days post hatch (dph), we have recorded body weight (BW) for 12,117 individuals and total length (TL), standard length (SL) and condition factor (Ktl and Ksl) for 3530 individuals; and all five traits for 2136 individuals at 270 dph. At 90 dph the average BW was 46.88 ± 20.95 g. Combining pedigree information, recorded growth traits and Restricted Maximum Likelihood method, we have estimated that the narrow sense heritability (h2) in F1 fish for BW, TL, SL, Ktl and Ksl was at, 90 dph, 0.12 ± 0.03, 0.11 ± 0.03, 0.10 ± 0.03, 0.20 ± 0.04 and 0.11 ± 0.03, respectively and, at 270 dph, 0.34 ± 0.07, 0.32 ± 0.07, 0.30 ± 0.06, 0.13 ± 0.04 and 0.11 ± 0.04, respectively. At 90 dph the realised heritability for BW was 0.13. Comparing with F1 generation, the growth performance of F2 fish was increased by 14.4%. Heritability of growth traits will be useful for future genetic improvement programmes of the Asian seabass. |
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| institution | Directory Open Access Journal |
| issn | 2468-550X |
| language | English |
| last_indexed | 2024-04-24T08:16:38Z |
| publishDate | 2017-05-01 |
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| series | Aquaculture and Fisheries |
| spelling | doaj.art-f3d906f0c18d4bed90a6ddcf2d5554db2024-04-17T03:24:09ZengKeAi Communications Co., Ltd.Aquaculture and Fisheries2468-550X2017-05-012311211810.1016/j.aaf.2017.06.001Heritability of growth traits in the Asian seabass (Lates calcarifer)Baoqing Ye0Ziyi Wan1Le Wang2Hongyan Pang3Yanfei Wen4Huiming Liu5Bing Liang6Huan Sein Lim7Junhui Jiang8Genhua Yue9Molecular Population Genetics and Breeding Group, Temasek Life Sciences Laboratory, Singapore 117604, SingaporeMolecular Population Genetics and Breeding Group, Temasek Life Sciences Laboratory, Singapore 117604, SingaporeMolecular Population Genetics and Breeding Group, Temasek Life Sciences Laboratory, Singapore 117604, SingaporeMolecular Population Genetics and Breeding Group, Temasek Life Sciences Laboratory, Singapore 117604, SingaporeMolecular Population Genetics and Breeding Group, Temasek Life Sciences Laboratory, Singapore 117604, SingaporeMolecular Population Genetics and Breeding Group, Temasek Life Sciences Laboratory, Singapore 117604, SingaporeAgri-Food and Veterinary Authority of Singapore, 5 Maxwell Road, Singapore 069110, SingaporeAgri-Food and Veterinary Authority of Singapore, 5 Maxwell Road, Singapore 069110, SingaporeAgri-Food and Veterinary Authority of Singapore, 5 Maxwell Road, Singapore 069110, SingaporeMolecular Population Genetics and Breeding Group, Temasek Life Sciences Laboratory, Singapore 117604, SingaporeGrowth is an economically important trait in aquaculture. To improve growth trait of the Asian seabass (Lates calcarifer) we have been carrying out, since 2004, a selective breeding program. This study focuses on growth traits in the F2 fish generation, comprised of offspring from 23 mass crosses from 383 F1 brooders. Using genotyping analysis for 10 microsatellites from both brood stock and progeny we have reconstructed the pedigree of each mass-cross. For F2 generation at 90 days post hatch (dph), we have recorded body weight (BW) for 12,117 individuals and total length (TL), standard length (SL) and condition factor (Ktl and Ksl) for 3530 individuals; and all five traits for 2136 individuals at 270 dph. At 90 dph the average BW was 46.88 ± 20.95 g. Combining pedigree information, recorded growth traits and Restricted Maximum Likelihood method, we have estimated that the narrow sense heritability (h2) in F1 fish for BW, TL, SL, Ktl and Ksl was at, 90 dph, 0.12 ± 0.03, 0.11 ± 0.03, 0.10 ± 0.03, 0.20 ± 0.04 and 0.11 ± 0.03, respectively and, at 270 dph, 0.34 ± 0.07, 0.32 ± 0.07, 0.30 ± 0.06, 0.13 ± 0.04 and 0.11 ± 0.04, respectively. At 90 dph the realised heritability for BW was 0.13. Comparing with F1 generation, the growth performance of F2 fish was increased by 14.4%. Heritability of growth traits will be useful for future genetic improvement programmes of the Asian seabass.http://www.sciencedirect.com/science/article/pii/S2468550X16300326Asian seabassBreeding programGrowthHeritabilityDNA marker |
| spellingShingle | Baoqing Ye Ziyi Wan Le Wang Hongyan Pang Yanfei Wen Huiming Liu Bing Liang Huan Sein Lim Junhui Jiang Genhua Yue Heritability of growth traits in the Asian seabass (Lates calcarifer) Aquaculture and Fisheries Asian seabass Breeding program Growth Heritability DNA marker |
| title | Heritability of growth traits in the Asian seabass (Lates calcarifer) |
| title_full | Heritability of growth traits in the Asian seabass (Lates calcarifer) |
| title_fullStr | Heritability of growth traits in the Asian seabass (Lates calcarifer) |
| title_full_unstemmed | Heritability of growth traits in the Asian seabass (Lates calcarifer) |
| title_short | Heritability of growth traits in the Asian seabass (Lates calcarifer) |
| title_sort | heritability of growth traits in the asian seabass lates calcarifer |
| topic | Asian seabass Breeding program Growth Heritability DNA marker |
| url | http://www.sciencedirect.com/science/article/pii/S2468550X16300326 |
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