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BLE - IV A FORTE TENEUR EN AMYLOSE
专利权人:
ARISTA CEREAL TECHNOLOGIES PTY LTD
发明人:
LI, ZHONGYI
申请号:
CA3087889
公开号:
CA3087889A1
申请日:
2019.01.10
申请国别(地区):
CA
年份:
2019
代理人:
摘要:
The present invention provides wheat grain of the species Triticum aestivum, the grain comprising i) mutations in each of its SSIIa genes such that the grain is homozygous for a mutation in its SSIIa-A gene, homozygous for a mutation in its SSIIa-B gene and homozygous for a mutation in its SSIIa-D gene, wherein at least two of the mutations in said SSIIa genes are null mutations, mutations in each of its SSIIIa genes such that the grain is homozygous for a mutation in its SSIIIa-A gene, homozygous for a mutation in its SSIIIa-B gene and homozygous for a mutation in its SSIIIa-D gene, wherein at least two of the mutations in said SSIIIa genes are null mutations ii) a total starch content comprising an amylose content and an amylopectin content, iii) a fructan content which is increased relative to wild-type wheat grain on a weight basis, preferably between 3% and 12% of the grain weight, iv) a ß-glucan content, v) an arabinoxylan content, vi) a cellulose content. The grain has a weight of between 25mg and 60mg, and the amylose content is between 45% and 70% on a weight basis of the total starch content of the grain as determined by iodine binding assay. The amylopectin content on a weight basis is reduced relative to the wild-type wheat grain, and each of the ß-glucan content, arabinoxylan content and cellulose content are increased relative to the wild-type wheat grain on a weight basis, such that the sum of the fructan content, ß-glucan content, arabinoxylan content and cellulose content is between 15% and 30% of the grain weight.
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中国工程科技知识中心
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