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The Application of Molecular Markers in Fish Breeding and Aquaculture

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Marine Biotechnology: Applications in Food, Drugs and Energy

Abstract

Over the past two decades, the global dependence of aquaculture is evident from the data indicating global aquaculture production more than tripled in live-weight volume from 34 million tons in 1997 to 179 million tons in 2018. Concurrently, there has been increasing pressure to improve the production efficiency of conventional production systems. The long-term economic sustainability of the aquaculture industry is founded on the selection, development, maintenance, and management of high-quality germplasm. The traditional approaches for selecting broodstock from wild populations solely on the basis of phenotypic traits have been replaced by the use of molecular markers offer a cost-effective solution for identifying superior individuals from the wild, which can be recruited into breeding programs. Maintenance of broodstock via the process of selective breeding can be managed effectively by the application of marker-assisted selection and the linkage of quantitative traits to genomic loci. The emergence of low-cost whole-genome sequencing platforms and the availability of genomic data at publicly available databases have contributed to a significant reduction in the cost of marker development which improves precision and accuracy. The following review will emphasize the different types of markers that have been developed for commercially important fishes, the methods employed for marker development and application, as well as the limitations of the currently available technologies.

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Correspondence to Kenneth Francis Rodrigues .

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© 2023 The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.

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Rodrigues, K.F., Biun, H., Yong, W.T.L., Chin, G.J.W.L., Ching, F.F., Othman, R. (2023). The Application of Molecular Markers in Fish Breeding and Aquaculture. In: Shah, M.D., Ransangan, J., Venmathi Maran, B.A. (eds) Marine Biotechnology: Applications in Food, Drugs and Energy. Springer, Singapore. https://doi.org/10.1007/978-981-99-0624-6_4

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