Understanding the Relationships between Free Asparagine in Grain and Other Traits to Breed Low-Asparagine Wheat

Since the discovery of acrylamide in food, and the identification of free asparagine as the key determinant of acrylamide concentration in wheat products, our understanding of how grain asparagine content is regulated has improved greatly. However, the targeted reduction in grain asparagine content...

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Bibliographic Details
Published in:Plants (Basel) 2022-02, Vol.11 (5), p.669
Main Authors: Oddy, Joseph, Raffan, Sarah, Wilkinson, Mark D, Elmore, J Stephen, Halford, Nigel G
Format: Article
Language:English
Subjects:
Acrylamide
Asparagine
breeding
Calories
Flour
Gluten
Grain
Plant breeding
pre-harvest sprouting
protein
Proteins
Review
Sulfur
Wheat
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Summary:Since the discovery of acrylamide in food, and the identification of free asparagine as the key determinant of acrylamide concentration in wheat products, our understanding of how grain asparagine content is regulated has improved greatly. However, the targeted reduction in grain asparagine content has not been widely implemented in breeding programmes so far. Here we summarise how free asparagine concentration relates to other quality and agronomic traits and show that these relationships are unlikely to pose major issues for the breeding of low-asparagine wheat. We also outline the strategies that are possible for the breeding of low-asparagine wheat, using both natural and induced variation.
ISSN:2223-7747
2223-7747
DOI:10.3390/plants11050669