WO2022114692A1 - CRISPR/Cas9 시스템을 이용한 갈변 억제 감자 식물체의 제조방법 - Google Patents
CRISPR/Cas9 시스템을 이용한 갈변 억제 감자 식물체의 제조방법 Download PDFInfo
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- C12N15/113—Non-coding nucleic acids modulating the expression of genes, e.g. antisense oligonucleotides; Antisense DNA or RNA; Triplex- forming oligonucleotides; Catalytic nucleic acids, e.g. ribozymes; Nucleic acids used in co-suppression or gene silencing
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
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- A—HUMAN NECESSITIES
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Definitions
- the present invention is (a) Potato-derived StPPO2 ( Solanum tuberosum Polyphenol Oxidases 2) gene specific guide RNA (guide RNA) and endonuclease (endonuclease) protein is introduced into the potato plant cell to generate the genome. correcting; and (b) re-differentiating the potato plant cells from the potato plant cells in which the genome has been corrected. It provides a method for producing a genome-edited potato plant with suppressed browning, comprising a.
- the CRISPR/Cas9 system used in the present invention introduces a double helix break at a specific position of a specific gene to be corrected, and NHEJ induces an insertion-deletion (InDel) mutation due to incomplete repair induced in the DNA repair process. (non-homologous end joining) It is a gene editing method based on the mechanism.
- a CRISPR/Cas9 RNP complex was prepared as follows. First, 15 ⁇ g of StPPO2-4 sgRNA (using 3 ⁇ l of sgRNA at a concentration of 5 ⁇ g/ ⁇ l) and 30 ⁇ g of Cas9 (using 6 ⁇ l of 5 ⁇ g/ ⁇ l of Cas9 protein) were put in a 2 ml tube, and NEB buffer (#3) ) was mixed with 1 ⁇ l and reacted at room temperature for 10 minutes. Thereafter, the CRISPR/Cas9 RNP complex was introduced into the prepared protoplasts by a PEG-mediated transfection method.
- PEG solution composition for transduction 40% PEG Solution When making 2.5 ml PEG 4000 1 g 1M Mannitol 0.5 ml 1M CaCl 2 0.25 ml ddH 2 0 To be 2.5 ml (about 1 ml) Put in a 14 ml round tube, adjust 2.5 ml with the naked eye, microwave for 20 seconds, mix well to dissolve completely, cool at room temperature, and filter before use. PEG solution is prepared and used fresh after each experiment.
- the protein concentration was measured through a Bradford assay, and the unit of PPO2 was calculated based on the measured protein concentration and absorbance at 410 nm.
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Abstract
Description
sgRNA | RGEN target* (5'→3') (서열번호) |
방향 | GC content (%, w/o PAM) |
Out-of frame score | Mismatchs | ||
0 | 1 | 2 | |||||
StPPO2-1 | TCCATGGATGAAAAGTTGAGAGG (서열번호 2) | - | 40 | 91.2 | 0 | 2 | 1 |
StPPO2-2 | TGCATGAAACTTTGAACATTTGG (서열번호 3) | - | 30 | 75.0 | 2 | 0 | 0 |
StPPO2-3 | ATACTACAAGACGAGAGATCAGG (서열번호 4) | - | 40 | 79.1 | 0 | 0 | 2 |
StPPO2-4 | TTAGGCGCGCAACAACTGTACGG (서열번호 5) | - | 50 | 72.5 | 1 | 0 | 0 |
* 밑줄 : PAM 염기. |
40% PEG Solution | 2.5 ㎖ 제작 시 |
PEG 4000 | 1g |
1M Mannitol | 0.5 ㎖ |
1M CaCl2 | 0.25 ㎖ |
ddH20 | To be 2.5 ㎖ (약 1 ㎖ 정도) |
14 ㎖ 라운드 튜브에 넣고 육안으로 2.5 ㎖을 맞춘 다음 전자레인지에 20초 돌린 후, 잘 섞어서 완전하게 용해하여 실온에서 식힌 후에 여과하여 사용함. PEG 용액은 실험할 때마다 만들어서 신선하게 사용함 |
Indel Pattern # |
Deletion size(bp) |
개체 수 | Deletion sites (PAM 서열로부터의 염기 위치) |
비고 |
1 | -2 | 25 | 5th, 6th | 4개의 alleles 모두가 -2 bp 결실 패턴으로 확인됨 |
2 | -4 | 24 | 4th, 5th, 6th, 7th | 4개의 alleles 모두가 -4 bp 결실 패턴으로 확인됨 |
3 | -2/-4 | 14 | pattern 1 & 2 | 4개의 alleles 중 2개 alleles씩 1번, 2번 결실 패턴이 나타남 |
4 | -1 | 47 | 4th | 4개의 alleles 중 1번, 2번 결실 패턴과 함께 -1 bp 결실 패턴을 가지는 allele가 확인됨 |
-5 | 4th, 5th, 6th, 7th, 8th | 4개의 alleles 중 1번, 2번 결실 패턴과 함께 -5 bp 결실 패턴을 가지는 allele가 확인됨 | ||
-10 | 5th ~ 14th | #205 라인의 1개 allele에서만 -10 bp 결실 패턴이 확인됨 | ||
계 | 110 |
Claims (10)
- 감자 유래 StPPO2 (Solanum tuberosum Polyphenol Oxidases 2) 유전자의 표적 염기서열에 특이적인 가이드 RNA(guide RNA)와 엔도뉴클레아제(endonuclease) 단백질의 복합체(ribonucleoprotein); 또는 감자 유래 StPPO2 유전자의 표적 염기서열에 특이적인 가이드 RNA를 암호화하는 DNA 및 엔도뉴클레아제 단백질을 암호화하는 핵산 서열을 포함하는 재조합 벡터; 를 유효성분으로 함유하는, 감자 식물체의 갈변을 억제하기 위한 유전체 교정용 조성물.
- 제1항에 있어서, 상기 StPPO2 유전자의 표적 염기서열은 서열번호 5의 염기서열로 이루어진 것을 특징으로 하는 조성물.
- StPPO2 (Solanum tuberosum Polyphenol Oxidases 2) 유전자를 구성하는 뉴클레오티드 서열 중 표적 영역에 특이적인 RNA 서열이며,상기 표적 영역은 서열번호 5의 염기서열인 가이드 핵산.
- (a) 감자 유래 StPPO2 (Solanum tuberosum Polyphenol Oxidases 2) 유전자의 표적 염기서열에 특이적인 가이드 RNA(guide RNA) 및 엔도뉴클레아제(endonuclease) 단백질을 감자 식물세포에 도입하여 유전체를 교정하는 단계; 및(b) 상기 유전체가 교정된 감자 식물세포로부터 감자 식물체를 재분화하는 단계; 를 포함하는, 갈변이 억제된 유전체 교정 감자 식물체의 제조방법.
- 제4항에 있어서, 상기 (a) 단계의 가이드 RNA 및 엔도뉴클레아제 단백질을 감자 식물세포에 도입하는 것은, 감자 유래 StPPO2 유전자의 표적 염기서열에 특이적인 가이드 RNA와 엔도뉴클레아제 단백질의 복합체(ribonucleoprotein); 또는 감자 유래 StPPO2 유전자의 표적 염기서열에 특이적인 가이드 RNA를 암호화하는 DNA 및 엔도뉴클레아제 단백질을 암호화하는 핵산 서열을 포함하는 재조합 벡터; 를 이용하는 것을 특징으로 하는 제조방법.
- 제4항에 있어서, 상기 StPPO2 유전자의 표적 염기서열은 서열번호 5의 염기서열로 이루어진 것을 특징으로 하는 제조방법.
- 제4항에 있어서, 상기 (b) 단계의 유전체가 교정된 감자 식물세포는 StPPO2 유전자의 표적 염기서열에 1~10 bp 크기의 결실(deletion) 변이가 유도된 것을 특징으로 하는 제조방법.
- 제4항 내지 제7항 중 어느 한 항의 방법에 의해 제조된 갈변이 억제된 유전체 교정 감자 식물체.
- 제8항에 있어서, 상기 갈변이 억제된 유전체 교정 감자 식물체는 StPPO2 유전자의 표적 염기서열에 1~10 bp 크기의 결실(deletion) 변이가 유도된 것을 특징으로 하는 유전체 교정 감자 식물체.
- 제8항에 따른 감자 식물체의 유전체가 교정된 씨감자.
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RU2817374C2 (ru) * | 2022-09-07 | 2024-04-15 | Федеральное государственное бюджетное научное учреждение "Всероссийский научно-исследовательский институт сельскохозяйственной биотехнологии" (ФГБНУ ВНИИСБ) | Способ получения растения картофеля с триаллельными мутациями в кодирующей области гена edr1 при помощи технологии редактирования генома растений crispr/cas9 |
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CN114686498A (zh) * | 2022-04-22 | 2022-07-01 | 中佳源物种(深圳)生物科技有限公司 | 苹果突变基因及编码蛋白、苹果突变体的制备方法 |
RU2817374C2 (ru) * | 2022-09-07 | 2024-04-15 | Федеральное государственное бюджетное научное учреждение "Всероссийский научно-исследовательский институт сельскохозяйственной биотехнологии" (ФГБНУ ВНИИСБ) | Способ получения растения картофеля с триаллельными мутациями в кодирующей области гена edr1 при помощи технологии редактирования генома растений crispr/cas9 |
RU2824558C2 (ru) * | 2022-09-07 | 2024-08-12 | Федеральное государственное бюджетное научное учреждение "Всероссийский научно-исследовательский институт сельскохозяйственной биотехнологии" (ФГБНУ ВНИИСБ) | Способ получения растения картофеля с биаллельными мутациями в кодирующей области гена edr1 при помощи технологии редактирования генома растений crispr/cas9 |
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