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Evaluation of relative growth performance and genotype by environment effects for cross-bred yellow perch families reared in communal ponds using DNA parentage analyses

Authors

  • Han-Ping Wang,

    1. Aquaculture Genetics and Breeding Laboratory, Ohio State University Aquaculture Research and Development Integration Program, Piketon, OH, USA
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  • Li Li,

    1. Aquaculture Genetics and Breeding Laboratory, Ohio State University Aquaculture Research and Development Integration Program, Piketon, OH, USA
    2. Ecological Genetics Laboratory, Virginia Commonwealth University, Richmond, VA USA
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    • *Present address: L Li, Experimental Marine Biology Laboratory, Institute of Oceanology, Chinese Academy of Sciences, 7 Nanhai Road, Qingdao 266071, China.

  • Geoff Wallat,

    1. Aquaculture Genetics and Breeding Laboratory, Ohio State University Aquaculture Research and Development Integration Program, Piketon, OH, USA
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  • Bonnie Brown,

    1. Ecological Genetics Laboratory, Virginia Commonwealth University, Richmond, VA USA
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  • Hong Yao,

    1. Aquaculture Genetics and Breeding Laboratory, Ohio State University Aquaculture Research and Development Integration Program, Piketon, OH, USA
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  • Zexia Gao,

    1. Aquaculture Genetics and Breeding Laboratory, Ohio State University Aquaculture Research and Development Integration Program, Piketon, OH, USA
    2. College of Fishery, Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction of Ministry of Education, Huazhong Agricultural University, Wuhan, Hubei, China
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  • Laura Tiu,

    1. Aquaculture Genetics and Breeding Laboratory, Ohio State University Aquaculture Research and Development Integration Program, Piketon, OH, USA
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  • Paul O'Bryant,

    1. Aquaculture Genetics and Breeding Laboratory, Ohio State University Aquaculture Research and Development Integration Program, Piketon, OH, USA
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  • Dean Rapp,

    1. Aquaculture Genetics and Breeding Laboratory, Ohio State University Aquaculture Research and Development Integration Program, Piketon, OH, USA
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  • Russ MacDonald

    1. Aquaculture Genetics and Breeding Laboratory, Ohio State University Aquaculture Research and Development Integration Program, Piketon, OH, USA
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Correspondence: H-P Wang, Aquaculture Genetics and Breeding Laboratory, Ohio State University Aquaculture Research and Development Integration Program, 1864 Shyville Road, Piketon, OH 45661, USA. E-mail: wang900@ag.osu.edu

Abstract

From 24 mating sets, 6300 fingerling of yellow perch (Perca flavescens) were stocked into one pond and equal numbers of progeny from six representative sets out of the 24 were stocked into each of two other ponds. After communal rearing for 21 months, total length and body weight were assessed for n=300 fish in each of the three ponds and molecular pedigrees were performed for each sampled individual to assign the progeny back to the original parents. The overall average number of alleles per locus was A=16.4 and observed and expected heterozygosities were Ho=0.88 and He=0.77 respectively. The mean weight of random samples and the top 10% fast-growing fish from the pond with all the sets was significantly greater than those from either of the two replicate ponds with six crosses. For the two replicate ponds, no significant differences were found in family rankings and assignment of the top 10% fast-growing fish, indicating that families with superior growth performance in one pond also exhibited the same superior growth performance in the replicate pond. However, there were no significant correlations detected in family mean weights of the top 10% fish between any two of the three ponds.

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