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Citation

Napier JA & Betancor MB (2023) Engineering plant-based feedstocks for sustainable aquaculture. Current Opinion in Plant Biology, 71, Art. No.: 102323. https://doi.org/10.1016/j.pbi.2022.102323

Abstract
There is a growing recognition of the challenges associated with ensuring good nutrition for all without compromising the environment. This is particularly true for aquaculture, given the reliance on marine extraction for key feed ingredients, yet at the same time it delivers key nutrients such as omega-3 long chain polyunsaturated fatty acids. This review will consider progress in transitioning away from oceanic-derived fish oils as feed ingredients, focusing on the emerging transgenic plant sources of these fatty acids. Specific consideration is given to the "validation" phase of this process, in which oils from GM plants are used as substitutes for bona fide fish oils in aquafeed diets. Equally, consideration is given to the demonstration of "real-world" potential by GM field trials. Collectively, the status of these new plant-based sources of omega-3 fish oils confirm the arrival of a new wave of plant biotech products, 25 years after the introduction of herbicide-tolerant input traits and demonstrate the power of GM agriculture to contribute to food security and operating within planetary boundaries. 2

Keywords
Aquaculture; Plant biotechnology; Omega-3; Fish oils; Sustainability

Journal
Current Opinion in Plant Biology: Volume 71

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