NDLI: Variation in the Ratio of Oat (Avena) Protein Fractions of Interest in Coeliac Grain Diets

Content Provider	Springer Nature Link
Author	Ahokas, Hannu Heikkilä, Eila Alho, Marja Leena
Copyright Year	2005
Abstract	The previously found wide range in the ratios of avenin or methanol-precipitated fractions to residual proteins was revisited by studying 75 oat varieties, mainly representing landraces from Finland, and included old varieties or selections, cv. Kytö, synthetic hexaploid oats and an Avena strigosa line (HA 71–87). The means of the fraction ratios ranged from 4.17 to 6.46 with significant differences. Samples of 10 narrow-ratio and 10 wide-ratio oats were compared more closely. The wide-ratio sample had significantly higher total protein content and significantly lower content of the methanol-precipitated protein fraction. Therefore, both fractions in general appear to contribute to the ratio of the protein fractions. The wide-ratio sample had significantly lower grain mass and husk-free karyopsis mass. Samples of the extreme ends in the ratios of the protein fractions showed different electrophoretic protein patterns, which was also seen in samples representing the same population of origin. It is evident that polymorphisms in the protein fractions would allow breeding of oat cultivars showing further lowering of proteins putatively toxic to coeliacs assuming oats contain these toxic proteins.
Starting Page	813
Ending Page	819
Page Count	7
File Format	PDF
ISSN	09259864
Journal	Genetic Resources and Crop Evolution
Volume Number	52
Issue Number	7
e-ISSN	15735109
Language	English
Publisher	Kluwer Academic Publishers
Publisher Date	2005-01-01
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Avena sativa Avenin Dermatitis herpetiformis Methanol-precipitated proteins Polymorphism Synthetic oats Plant Sciences Plant Pathology Plant Physiology
Content Type	Text
Resource Type	Article
Subject	Genetics Plant Science Ecology, Evolution, Behavior and Systematics Agronomy and Crop Science

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