KR102774954B1 - 종자 내 포화지방산 함량 증가용 조성물 및 방법 - Google Patents
종자 내 포화지방산 함량 증가용 조성물 및 방법 Download PDFInfo
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- KR102774954B1 KR102774954B1 KR1020210129368A KR20210129368A KR102774954B1 KR 102774954 B1 KR102774954 B1 KR 102774954B1 KR 1020210129368 A KR1020210129368 A KR 1020210129368A KR 20210129368 A KR20210129368 A KR 20210129368A KR 102774954 B1 KR102774954 B1 KR 102774954B1
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- C12N15/63—Introduction of foreign genetic material using vectors; Vectors; Use of hosts therefor; Regulation of expression
- C12N15/79—Vectors or expression systems specially adapted for eukaryotic hosts
- C12N15/82—Vectors or expression systems specially adapted for eukaryotic hosts for plant cells, e.g. plant artificial chromosomes (PACs)
- C12N15/8241—Phenotypically and genetically modified plants via recombinant DNA technology
- C12N15/8242—Phenotypically and genetically modified plants via recombinant DNA technology with non-agronomic quality (output) traits, e.g. for industrial processing; Value added, non-agronomic traits
- C12N15/8243—Phenotypically and genetically modified plants via recombinant DNA technology with 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, caffeine
- C12N15/8247—Phenotypically and genetically modified plants via recombinant DNA technology with 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, caffeine involving modified lipid metabolism, e.g. seed oil composition
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- 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
- A01H1/06—Processes for producing mutations, e.g. treatment with chemicals or with radiation
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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
- A01H5/00—Angiosperms, i.e. flowering plants, characterised by their plant parts; Angiosperms characterised otherwise than by their botanic taxonomy
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Abstract
Description
도 2는 CRISPR/Cas13a RNA의 억제 메커니즘을 나타낸 것이다.
도 3은 애기장대 fab2 돌연변이 대립유전자(fab2-1, fab2-2 및 fab2-3) 분리 및 성장 표현형을 나타낸 것이다.
도 4는 야생형 및 fab2 T-DNA 돌연변이의 지방산 조성 및 종자 표현형 분석을 나타낸 것이다.
도 5는 7종의 Cas13a gRNA의 FAB2 RNA 2차 구조 및 표적 위치를 나타낸 것이다.
도 6은 Cas13a-FAB2 T1 형질전환 식물의 형질전환 유전자 분석을 나타낸 것이다.
도 7은 FAB2_Cas13a T1 형질전환체 7종의 종자 포화지방산(16:0+18:0+20:0) 함량 분포를 나타낸 것이다.
도 8은 Cas13a_FAB2 T1 형질전환주 7종 중 종자 포화지방산 함량이 가장 높은 3종의 영양생장 표현형을 나타낸 것이다.
도 9는 Cas13a-FAB2 형질전환 T2 세대 분석을 나타낸 것이다.
도 10은 Cas13a-FAB2 형질전환체 T3 종자 발아율 및 종자 특성을 나타낸 것이다.
도 11은 Cas13a-FAB2_7 형질전환체 T2 세대 분석을 나타낸 것이다.
도 12는 애기장대와 다른 식물 간의 FAB2 효소 단백질의 아미노산 서열 비교를 나타낸 것이다. At: Arabidopsis thaliana (애기장대), Ah:Arachis hypogaea (땅콩), Bn: Brassica napus (유채), Bo: Brassica oleracea (양배추), Br: Brassica rapa (배추), Cs: Camelina sativa ( 양구슬냉이 ), Gm: Glycine max (대두), Jc: Jatropha curcas (자트로파), Nb: Nicotiana banthamiana (담배), Os: Oryza sative (벼), Rc: Ricinus communis (피마자), Ta: Triticum aestivum (밀) , Tc: Theobroma cacao (카카오), Xs:Xanthoceras sorbifolium (기름모과나무), Zm: Zea mays (옥수수)
도 13은 애기장대와 다른 식물 간의 FAB2 mRNA 억제를 위해 7종 sgRNA 염기서열을 비교를 나타낸 것이다.
Claims (10)
- 종자 특이적 발현 올레오신 1 프로모터; 이와 작동가능하게 연결된 Cas13a 유전자; 및 서열번호 1의 서열에 대응되는 FAB2(Fatty acid biosynthesis 2) RNA를 표적으로 하는 gRNA;를 포함하는 벡터를 포함하는,
상기 서열번호 1에서 31 내지 43번째, 70 내지 81번째, 579 내지 590 번째, 592 내지 603번째, 598 내지 609번째, 1008 내지 1019번째, 또는 1026 내지 1037번째 위치에 대응되는 위치 중 적어도 하나를 절단하는 종자 내 포화지방산 함량 증가용 조성물.
- 삭제
- 청구항 1에 있어서, 상기 gRNA는 서열번호 2 내지 8 중 적어도 하나의 서열로 이루어진 것인 조성물.
- 청구항 1에 있어서, 상기 포화지방산은 팔미트산 (C16:0), 스테아르산 (C18:0) 및 아라키드산 (C20:0)으로 이루어진 군으로부터 선택되는 것인 조성물.
- 청구항 1에 있어서, 상기 종자는 깨, 참깨, 들깨, 땅콩, 콩, 유채, 아마, 아주까리, 야자나무, 올리브, 동백, 잇꽃, 삼, 아마, 오동, 해바라기, 올리브, 낙화생, 동백, 피마자, 평지, 개암나무, 붉은 유칼립투스, 벼, 레스퀘렐라, 피마자 또는 옥수수 식물체의 종자인 조성물.
- FAB2(Fatty acid biosynthesis 2) 단백질을 발현하는 식물체를 종자 특이적 발현 올레오신 1 프로모터; 이와 작동가능하게 연결된 Cas13a 유전자; 및 서열번호 1의 서열에 대응되는 FAB2(Fatty acid biosynthesis 2) RNA를 표적으로 하는 gRNA;를 포함하는 벡터로 형질전환하여
상기 식물체의 FAB2(Fatty acid biosynthesis 2) RNA에서 서열번호 1에서 31 내지 43번째, 70 내지 81번째, 579 내지 590 번째, 592 내지 603번째, 598 내지 609번째, 1008 내지 1019번째, 또는 1026 내지 1037번째 위치에 대응되는 위치 중 적어도 하나를 절단하는 단계를 포함하는 종자 내 포화지방산 함량을 증가시키는 방법.
- 삭제
- 청구항 6에 있어서, 상기 gRNA는 서열번호 2 내지 8 중 적어도 하나의 서열로 이루어진 것인 방법.
- 청구항 6에 있어서, 상기 포화지방산은 팔미트산 (C16:0), 스테아르산 (C18:0) 및 아라키드산 (C20:0)으로 이루어진 군으로부터 선택되는 것인 방법.
- 청구항 6에 있어서, 상기 종자는 깨, 참깨, 들깨, 땅콩, 콩, 유채, 아마, 아주까리, 야자나무, 올리브, 동백, 잇꽃, 삼, 아마, 오동, 해바라기, 올리브, 낙화생, 동백, 피마자, 평지, 개암나무, 붉은 유칼립투스, 벼, 레스퀘렐라, 피마자 또는 옥수수 식물체의 종자인 방법.
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