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HIGH AMYLOSE WHEAT - III
专利权人:
Commonwealth Scientific and Industrial Research Organisation
发明人:
Xinguo Li,Zhongyi Li,Ahmed Regina,Stephen Alan Jobling
申请号:
US16312217
公开号:
US20190338299A1
申请日:
2017.07.04
申请国别(地区):
US
年份:
2019
代理人:
摘要:
The present invention provides wheat grain of the species Triticum aestivum, the grain comprisingi) 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,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 β-glucan content,v) an arabinoxylan content,vi) a cellulose content.The grain has a weight of between 25 mg and 60 mg, 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 β-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, β-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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http://www.ckcest.cn/home/

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