WO2015004638A3 - Mutations des gènes de biosynthèse de l'amidon à l'origine d'une forte expression de fibres et d'amidon résistant dans l'endosperme du riz - Google Patents

Mutations des gènes de biosynthèse de l'amidon à l'origine d'une forte expression de fibres et d'amidon résistant dans l'endosperme du riz Download PDF

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Publication number
WO2015004638A3
WO2015004638A3 PCT/IB2014/063040 IB2014063040W WO2015004638A3 WO 2015004638 A3 WO2015004638 A3 WO 2015004638A3 IB 2014063040 W IB2014063040 W IB 2014063040W WO 2015004638 A3 WO2015004638 A3 WO 2015004638A3
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WO
WIPO (PCT)
Prior art keywords
rice
starch
mutations
amylopectin
resistant starch
Prior art date
Application number
PCT/IB2014/063040
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English (en)
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WO2015004638A2 (fr
Inventor
Bhikane Shankarrao NANDKISHOR
Original Assignee
Texcity Bio-Sciences Pvt. Ltd
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Publication date
Application filed by Texcity Bio-Sciences Pvt. Ltd filed Critical Texcity Bio-Sciences Pvt. Ltd
Publication of WO2015004638A2 publication Critical patent/WO2015004638A2/fr
Publication of WO2015004638A3 publication Critical patent/WO2015004638A3/fr

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    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01H—NEW PLANTS OR NON-TRANSGENIC PROCESSES FOR OBTAINING THEM; PLANT REPRODUCTION BY TISSUE CULTURE TECHNIQUES
    • A01H1/00—Processes for modifying genotypes ; Plants characterised by associated natural traits
    • A01H1/10—Processes for modifying non-agronomic quality output traits, e.g. for industrial processing; Value added, non-agronomic traits
    • A01H1/101—Processes for modifying non-agronomic quality output traits, e.g. for industrial processing; Value added, non-agronomic traits involving biosynthetic or metabolic pathways, i.e. metabolic engineering, e.g. nicotine or caffeine
    • A01H1/102—Processes for modifying non-agronomic quality output traits, e.g. for industrial processing; Value added, non-agronomic traits involving biosynthetic or metabolic pathways, i.e. metabolic engineering, e.g. nicotine or caffeine involving modified carbohydrate or sugar alcohol metabolism, e.g. starch biosynthesis
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01H—NEW PLANTS OR NON-TRANSGENIC PROCESSES FOR OBTAINING THEM; PLANT REPRODUCTION BY TISSUE CULTURE TECHNIQUES
    • A01H5/00—Angiosperms, i.e. flowering plants, characterised by their plant parts; Angiosperms characterised otherwise than by their botanic taxonomy
    • A01H5/10—Seeds
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01H—NEW PLANTS OR NON-TRANSGENIC PROCESSES FOR OBTAINING THEM; PLANT REPRODUCTION BY TISSUE CULTURE TECHNIQUES
    • A01H6/00—Angiosperms, i.e. flowering plants, characterised by their botanic taxonomy
    • A01H6/46—Gramineae or Poaceae, e.g. ryegrass, rice, wheat or maize
    • A01H6/4636—Oryza sp. [rice]
    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
    • C12N9/00—Enzymes; Proenzymes; Compositions thereof; Processes for preparing, activating, inhibiting, separating or purifying enzymes
    • C12N9/10—Transferases (2.)
    • C12N9/1048—Glycosyltransferases (2.4)
    • C12N9/1051—Hexosyltransferases (2.4.1)

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  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Botany (AREA)
  • Environmental Sciences (AREA)
  • Developmental Biology & Embryology (AREA)
  • Physiology (AREA)
  • Engineering & Computer Science (AREA)
  • Genetics & Genomics (AREA)
  • General Health & Medical Sciences (AREA)
  • Biotechnology (AREA)
  • Natural Medicines & Medicinal Plants (AREA)
  • Molecular Biology (AREA)
  • Breeding Of Plants And Reproduction By Means Of Culturing (AREA)
  • Measuring Or Testing Involving Enzymes Or Micro-Organisms (AREA)

Abstract

La présente invention concerne les mutations touchant les gènes de l'amidon synthétase du riz mutant Tx2 qui sont associées à des teneurs en fibres alimentaires et en amidon résistant améliorées dans l'endosperme. Les teneurs accrues en fibres alimentaires et en amidon résistant chez le riz ont pour résultat un indice glycémique bas, d'une valeur de 51,2 + 5,2, ce qui fait que ces variétés de riz sont très recherchées par les diabétiques. Les mutations touchant les gènes de l'amidon synthétase ciblent la modification structurelle de l'amylopectine plutôt qu'elles n'entraînent une augmentation de la teneur en amylose, et ce, sans affecter les caractéristiques de cuisson des grains de riz. La mutation touchant le gène SSIIa est également associée à un moindre allongement de chaîne dans la forme L de l'amylopectine si bien que la longueur de chaîne de l'amylopectine peut être modifiée dans les variétés de riz Indica.
PCT/IB2014/063040 2013-07-12 2014-07-11 Mutations des gènes de biosynthèse de l'amidon à l'origine d'une forte expression de fibres et d'amidon résistant dans l'endosperme du riz WO2015004638A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IN3126/CHE/2013 2013-07-12
IN3126CH2013 2013-07-12

Publications (2)

Publication Number Publication Date
WO2015004638A2 WO2015004638A2 (fr) 2015-01-15
WO2015004638A3 true WO2015004638A3 (fr) 2015-05-21

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PCT/IB2014/063040 WO2015004638A2 (fr) 2013-07-12 2014-07-11 Mutations des gènes de biosynthèse de l'amidon à l'origine d'une forte expression de fibres et d'amidon résistant dans l'endosperme du riz

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WO (1) WO2015004638A2 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015004638A2 (fr) * 2013-07-12 2015-01-15 Texcity Bio-Sciences Pvt. Ltd Mutations des gènes de biosynthèse de l'amidon à l'origine d'une forte expression de fibres et d'amidon résistant dans l'endosperme du riz
SG11201806916RA (en) * 2016-02-15 2018-09-27 Udaya Agro Farm A method for increasing resistant starch and dietary fibre in rice
CN108949861B (zh) * 2018-08-13 2020-12-01 江南大学 一种制备慢消化糊精的方法
CN109662307B (zh) * 2018-12-29 2021-12-21 上海市农业科学院 一种富含慢消化淀粉的复合青稞粉及其制备方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6585930B2 (en) * 2001-04-25 2003-07-01 Extrude Hone Corporation Method for article fabrication using carbohydrate binder
US20100316786A1 (en) * 2006-12-29 2010-12-16 Bayer Cropscience Ag Corn starch and also corn flours and foods comprising this corn starch
WO2011011833A1 (fr) * 2009-07-30 2011-02-03 Commonwealth Scientific And Industrial Research Organisation L’orge et ses utilisations
US8188336B2 (en) * 2003-10-27 2012-05-29 Commonwealth Scientific And Industrial Research Organisation Rice and products thereof having starch with an increased proportion of amylose
WO2015004638A2 (fr) * 2013-07-12 2015-01-15 Texcity Bio-Sciences Pvt. Ltd Mutations des gènes de biosynthèse de l'amidon à l'origine d'une forte expression de fibres et d'amidon résistant dans l'endosperme du riz

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6585930B2 (en) * 2001-04-25 2003-07-01 Extrude Hone Corporation Method for article fabrication using carbohydrate binder
US8188336B2 (en) * 2003-10-27 2012-05-29 Commonwealth Scientific And Industrial Research Organisation Rice and products thereof having starch with an increased proportion of amylose
US20100316786A1 (en) * 2006-12-29 2010-12-16 Bayer Cropscience Ag Corn starch and also corn flours and foods comprising this corn starch
WO2011011833A1 (fr) * 2009-07-30 2011-02-03 Commonwealth Scientific And Industrial Research Organisation L’orge et ses utilisations
WO2015004638A2 (fr) * 2013-07-12 2015-01-15 Texcity Bio-Sciences Pvt. Ltd Mutations des gènes de biosynthèse de l'amidon à l'origine d'une forte expression de fibres et d'amidon résistant dans l'endosperme du riz

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WO2015004638A2 (fr) 2015-01-15

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