Wheat with altered branching enzyme activity and starch and starch containing products derived therefrom
AssigneesCommonwealth Scientific and Industrial Research Organisation, Limagrain Cereales Ingredients S.A.
InventorsAhmed Regina, Sadequr Rahman, Matthew Kennedy Morell, Zhongyi Li
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Abstract
Wheat having a reduced level of SBEIIa activity, that may have a relative high amylose content. Wheat having a mutant SBEIIa gene in the A genome. The wheat might additionally have reduced levels of SBEIIb activity. The wheat grain of this invention can be of a non-shrunken phenotype despite a lesion in the amylopectin synthesis pathway, and may also have a high relative amylose content.
Claims34
Wheat grain comprising starch and null mutations of two or three SBEIIa genes, wherein the proportion of amylose in the starch of the grain is at least 30% (w/w) as determined by an iodometric method.
A wheat plant comprising null mutations of two or three SBEIIa genes and capable of producing grain having starch, wherein the proportion of amylose in the starch of the grain is at least 30% (w/w) as determined by an iodometric method.
A process for making a milled product comprising
- i) obtaining wheat grain comprising starch and null mutations of two or three SBEIIa genes, wherein the proportion of amylose in the starch of the grain is at least 30% (w/w) as determined by an iodometric method;
- and
- ii) processing the wheat grain to produce flour, whole meal or semolina, thereby making the milled product.
Dependencies are inferred from the claim text.