Erratum to “Biotechnological approaches to modify rapeseed oil composition for applications in aquaculture”

Opsahl-Ferstad, Hilde-Gunn; Rudi, Heidi; Ruyter, Bente; Refstie, Ståle

doi:10.1016/s0168-9452(03)00345-5

Cited by 27 publications

(22 citation statements)

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“…To qualify as canola, seed oil content must be less than 2% erucic acid while the aliphatic glucosinolate content of seed meal must be below 30 mmol g (1 (Canola Council of Canada 1990). Currently, much effort is directed at generating genotypes with specific fatty acid composition for specialty oil markets including industrial uses and fish food (Opsahl-Ferstad et al 2003). This elevates concerns of potential contamination caused by volunteer populations of B. napus and B. rapa when genotypes of different quality characteristics are grown without adequate separation in time and space.…”

Section: Historymentioning

confidence: 99%

The Biology of Canadian Weeds. 137. Brassica napus L. and B. rapa L.

Gulden¹,

Warwick²,

Thomas³

2008

Can. J. Plant Sci.

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. 2008. The Biology of Canadian Weeds. 137. Brassica napus L. and B. rapa. Can. J. Plan Sci. 88: 951Á996. Brassica napus and B. rapa are native to Eurasia. In Canada, these species are commonly referred to as volunteer canola, while feral populations of B. rapa are referred to as birdrape. Brassica napus and B. rapa have been grown commercially for their seed oil content in western Canada since the middle of the last century and volunteer populations are common in fields. Escaped populations of both species are also found along roadways, railways and in waste areas; however, only B. rapa is known to have naturalized, self-sustaining feral populations in these habitats in eastern Canada. Despite these escaped and feral populations, B. napus and B. rapa are mainly a concern in agricultural fields where their combined relative abundance has increased over the past few decades. In the mid 1990s, herbicideresistant genotypes of B. napus were released for commercial production. Herbicide-resistance and the stacking of genes in volunteer populations conferring resistance to multiple herbicides have contributed to increased difficulties in controlling volunteer B. napus in some crops. However, yield loss resulting from volunteer populations is not well documented in Canada.Key words: Brassica napus, Brassica rapa, herbicide resistance, transgene escape, volunteer canola, weed biology Gulden, R. H., Warwick, S. I. et Thomas, A. G. 2008. La biologie des mauvaises herbes au Canada. 137. Brassica napus L. et B. rapa L. Can. J. Plant Sci. 88: 951Á996. Brassica napus et B. rapa sont des plantes originaires d'Eurasie. Au Canada, on les de´signe souvent sous l'expression « canola spontane´», tandis que les peuplements sauvages de B. rapa sont appele´s « navette ». Dans l'Ouest canadien, Brassica napus et B. rapa sont cultive´s commercialement pour l'huile que renferment leurs graines depuis le milieu du sie`cle dernier et les repousses spontane´es sont devenues monnaie courante dans les champs. On observe des peuplements des deux espe`ces le long des routes et des voies ferre´es ainsi que dans les terrains vagues, cependant on sait que seule B. rapa s'est acclimate´e pour donner des populations sauvages et stables dans les meˆmes habitats, dans l'est du pays. Malgre´cela, B. napus et B. rapa demeurent surtout pre´occupants dans les cultures, oul eur abondance relative, une fois combine´s, s'est accrue au cours des dernie`res de´cennies. Au milieu des anne´e 1990, des ge´notypes de B. napus re´sistants aux herbicides ont e´te´homologue´s pour la culture commerciale. Cette re´sistance et l'accumulation des ge`nes qui la codent dans les peuplements spontane´s ont concouru a`compliquer la lutte contre les repousses de B. napus dans certaines cultures. Quoi qu'il en soit, les pertes de rendement qui en re´sultent sont mal e´taye´es au Canada.

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Section: Historymentioning

confidence: 99%

The Biology of Canadian Weeds. 137. Brassica napus L. and B. rapa L.

Gulden¹,

Warwick²,

Thomas³

2008

Can. J. Plant Sci.

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“…It is therefore to be hoped that the use of transgenic plants as a source of fish oils for human health and nutrition can be considered as a sustainable alternative to the diminishing marine fish stocks (Graham et al 2004). It should also be remembered that since aquaculture is also dependent on fish oils for the correct nutrition of farmed fish species, transgenic-derived plant oils enhanced by the presence of LC PUFA may also be able to sustainably replace this additional demand (Opsahl-Ferstad et al 2003).…”

Section: Discussionmentioning

confidence: 99%

“…This progression of n-3 LC PUFA up the aquatic food web has implications for attempts to supplement fish stocks by aquaculture (i.e. fish farming), not least of all because farmed fish still require dietary n-3 LC PUFA (Opsahl-Ferstad et al 2003). Aquaculture is currently the largest consumer of fishderived oils, and so is clearly not capable of operating in a sustainable manner.…”

Section: Long-chain Pufa In the Human Dietmentioning

confidence: 99%

“…Unfortunately, just as the importance of n-3 LC PUFA is finally being recognised by health protection agencies and the general public at large, the natural resources that provide these oils are in danger of being exhausted. For example, stocks of common marine fish in northern Europe have been over-exploited for decades, resulting in ever-reducing catch size (in terms of both numbers and maturity of fish; Opsahl-Ferstad et al 2003;Graham et al 2004). Thus, there is considerable pressure to identify a sustainable source of important fish-oil fatty acids such as DHA and EPA for use in the protection and improvement of human health, in addition to the requirements of aquaculture.…”

Section: Long-chain Pufa In the Human Dietmentioning

confidence: 99%

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The production of very-long-chain PUFA biosynthesis in transgenic plants: towards a sustainable source of fish oils

Napier

Sayanova

2005

Proc. Nutr. Soc.

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There is now considerable evidence of the importance of n-3 long-chain PUFA in human health and development. At the same time, the marine fish stocks that serve as the primary sources of these fatty acids are threatened by continued over-exploitation. Thus, there is an urgent need to provide a sustainable alternative source of the n-3 long-chain PUFA normally found in fish oils. The possibility of using transgenic plants genetically engineered to synthesise these important fatty acids has recently been demonstrated. The approaches taken to realise this outcome will be discussed, as will their prospects for providing a sustainable resource for the future.

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“…This is mainly supplied as fish oil rich in HUFA. The demand for fish oil is, however, increasing rapidly, both from aquaculture and also from other users e.g., poultry producers (Opsahl-Ferstad et al, 2003). This is expected to increase the price of this feed ingredient, and the demand will likely exceed the supply in the near future.…”

Section: Introductionmentioning

confidence: 99%

Over-Expression of Gene Encoding Fatty Acid Metabolic Enzymes in Fish

Alimuddin

Yoshizaki

Takeuchi

et al. 2008

Indonesian Aquaculture Journal

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Eicosapentaenoic acid (EPA, and docosahexaenoic acid (DHA, 22:6n-3) have important nutritional benefits in humans. EPA and DHA are mainly derived from fish, but the decline in the stocks of major marine capture fishes could result in these fatty acids being consumed less. Farmed fish could serve as promising sources of EPA and DHA, but they need these fatty acids in their diets. Generation of fish strains that are capable of synthesizing enough amounts of EPA/DHA from the conversion of α-linolenic acid (LNA, 18:3n-3) rich oils can supply a new EPA/DHA source. This may be achieved by over-expression of genes encoding enzymes involved in HUFA biosynthesis. In aquaculture, the successful of this technique would open the possibility to reduce the enrichment of live food with fish oils for marine fish larvae, and to completely substitute fish oils with plant oils without reducing the quality of flesh in terms of EPA and DHA contents. Here, three genes, i.e. Δ6-desaturase-like (OmΔ6FAD), Δ5-desaturase-like (OmΔ5FAD) and elongase-like (MELO) encoding EPA/ DHA metabolic enzymes derived from masu salmon (Oncorhynchus masou) were individually transferred into zebrafish (Danio rerio) as a model to increase its ability for synthesizing EPA and DHA. Fatty acid analysis showed that EPA content in whole body of the second transgenic fish generation over-expressing OmΔ6FAD gene was 1.4 fold and that of DHA was 2.1 fold higher (P<0.05) than those in non-transgenic fish. The EPA content in whole body of transgenic fish over-expressing OmΔ5FAD gene was 1.21-fold, and that of DHA was 1.24-fold higher (P<0.05) than those in nontransgenic fish. The same patterns were obtained in transgenic fish over-expressing MELO gene. EPA content was increased by 1.30-fold and DHA content by 1.33-fold higher (P<0.05) than those in non-transgenic fish. The results of studies demonstrated that fatty acid content of fish can be enhanced by over-expressing gene encoding enzymes involved in fatty acid biosynthesis, and perhaps this could be applied to tailor farmed fish as even better sources of valuable human food.

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Erratum to “Biotechnological approaches to modify rapeseed oil composition for applications in aquaculture”

Cited by 27 publications

References 0 publications

The Biology of Canadian Weeds. 137. Brassica napus L. and B. rapa L.

The Biology of Canadian Weeds. 137. Brassica napus L. and B. rapa L.

The production of very-long-chain PUFA biosynthesis in transgenic plants: towards a sustainable source of fish oils

Over-Expression of Gene Encoding Fatty Acid Metabolic Enzymes in Fish

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