Quantitative genetic estimates of growth-related traits in the common carp (Cyprinus carpio L.): A review |
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Authors: | Chenghui Wang |
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Institution: | (1) Key Laboratory of Aquatic Genetic Resources and Utilization, Ministry of Agriculture, Shanghai Ocean University, Shanghai, 201306, China |
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Abstract: | The common carp (Cyrpinus carpio L.) is the oldest cultured and the most domesticated fish species, as well as one of the most important freshwater fishes
in the world. However, scientific studies on evaluating the growth-related quantitative traits in this fish are limited. Heritability,
the most important parameter in selective breeding programs, was extensively studied for the growth-related traits. The values
varied widely among the experiments and methods used because of the existence of common environmental, dominance and maternal
effects. However, correlations in phenotypic and genetic levels first evaluated several years ago were limited. On the other
hand, heterosis was widely reported and easily obtained for growth-related traits in the common carp. Meanwhile, genotype
environment interaction and prediction of breeding values have been studied recently, and are very important in conducting
selective breeding programs. The developmental quantitative genetics of growth-related traits was first analyzed in the common
carp for reasonable selection during ontogeny. It is expected that genetic improvement will be achieved by carrying out direct
selective breeding in the common carp. |
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Keywords: | Cyprinus carpio L growth-related traits heritability correlation heterosis |
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