KR102814883B1 - CRISPR/Cas 시스템을 이용한 OsAAP2 유전자가 교정된 벼 식물체의 제조방법 - Google Patents
CRISPR/Cas 시스템을 이용한 OsAAP2 유전자가 교정된 벼 식물체의 제조방법 Download PDFInfo
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Abstract
Description
도 2는 OsAAP2 유전자의 교정을 위한 sgRNA 표적 위치 및 서열 정보(A)와, NGS 분석에 의한 sgRNA 표적 위치의 돌연변이 양상을 보여주는 결과(B)이다.
도 3은 야생형(WT) 및 T1 세대 osaap2 돌연변이체의 표현형을 관찰한 것으로, A는 종자와 현미의 사진이고, B는 낟알 길이, 낟알 너비, 낟알 두께 및 천립중 분석 결과이다.
도 4는 야생형(WT) 및 T1 세대 osaap2 돌연변이체 종자의 전자현미경 이미지로, A는 야생형 식물체의 성숙 배유의 이미지이고, B 및 C는 각각 osaap2 sg1-3 및 osaap2 sg2-12 식물체의 성숙 배유의 이미지이며, D는 야생형 식물체의 성숙 배유의 중앙 부분 이미지이고, E와 F는 각각 osaap2 sg1-3 및 osaap2 sg2-12 식물체의 성숙 배유의 중앙 부분 이미지이다.
도 5는 T1 세대 osaap2 돌연변이체에서 전분의 물리화학적 특성을 분석한 것으로, A는 아밀로스 함량, B는 점성(gel consistency)을 분석한 결과이다.
| 프라이머 | 염기서열(5'→3') | 서열번호 |
| AAP2-sg1/2 1st FW | TTTGATTTCTGCAGGCAGGT | 4 |
| AAP2-sg1/2 1st RV | CGAACACCACCATGTACGAG | 5 |
| AAP2-sg1 2nd FW | ACACTCTTTCCCTACACGACGCTCTTCCGATCTTTGTGATTTGACGAGCAGGA | 6 |
| AAP2-sg1 2nd RV | GTGACTGGAGTTCAGACGTGTGCTCTTCCGATCTTAGTTCCTCTTCCCGGAGAC | 7 |
| AAP2-sg2 2nd FW | ACACTCTTTCCCTACACGACGCTCTTCCGATCTCATGAACCAACGACTCAACG | 8 |
| AAP2-sg2 2nd RV | GTGACTGGAGTTCAGACGTGTGCTCTTCCGATCTCAGAAACACACACACACCAATG | 9 |
| Target region | No. of regenerated plants | No. of transgenic plants | No. of edited plants | Genotype | ||
| Homo allelic | Hetero allelic | Bi allelic | ||||
| OsAAP2 sg1 | 30 | 30 | 17 (56.6%) | 3 (17.6%) | 4 (23.5%) | 10 (58.8%) |
| OsAAP2 sg2 | 20 | 19 | 18 (89.4%) | 1 (5.9%) | - | 16 (94.1%) |
| Traits | 야생형(WT) | osaap2-sg1-3 | osaap2-sg2-12 |
| Plant height (cm) | 95.8±2.0 a | 94.9±2.2 a | 94.4±3.0 a |
| Tiller numbers | 8.4±1.2 a | 5.4±1.2 b | 5.4±1.0 b |
| Panicle length (cm) | 20.5±1.2 a | 20.0±1.2 a | 19.7±1.2 a |
| 1000-grain weight (g) | 17.8±0.8 a | 17.2±0.7 a | 18.1±0.8 a |
| seed-setting rate (%) | 86.3±5.0 a | 59.8±4.9 b | 51.4±3.7 b |
| Grain yield per plant (g) | 14.9±1.7 a | 6.2±1.9 b | 6.3±2.2 b |
| Pasting Tem. | Viscosity | Breakdown (P-H) 강하점도 |
Setback (C-P) 치반점도 |
|||
| Peak (P) 최고점도 |
Hold (H) 최저점도 |
Final V (C) 최종점도 |
||||
| WT | 72.25±0.2 | 187.67±4.92 | 82.79±0.04 | 147.17±0.42 | 104.88±4.96 | -40.50±5.33 |
| osaap2-sg1-3 | 71.3±0.1 | 110.33±1.25 | 52.42±0.59 | 97.21±1.29 | 57.92±0.66 | -13.13±0.04 |
| Osaap2-sg2-12 | 70.55±0.05 | 152.05±0.13 | 73.04±0.29 | 141.25±0.00 | 79.00±0.18 | -10.80±0.13 |
Claims (6)
- 서열번호 2 또는 3의 염기서열로 이루어진, 벼 유래 OsAAP2 (Oryza sativa Amino acid permease 2) 유전자의 표적 염기서열에 특이적인 가이드 RNA(guide RNA)를 암호화하는 DNA 및 엔도뉴클레아제(endonuclease) 단백질을 암호화하는 핵산 서열을 포함하는 재조합 벡터; 또는 서열번호 2 또는 3의 염기서열로 이루어진, 벼 유래 OsAAP2 유전자의 표적 염기서열에 특이적인 가이드 RNA와 엔도뉴클레아제 단백질의 복합체(ribonucleoprotein);를 유효성분으로 함유하는, OsAAP2 유전자 교정 식물체를 제조하기 위한 조성물.
- (a) 서열번호 2 또는 3의 염기서열로 이루어진, 벼 유래 OsAAP2 (Oryza sativa Amino acid permease 2) 유전자의 표적 염기서열에 특이적인 가이드 RNA(guide RNA) 및 엔도뉴클레아제(endonuclease) 단백질을 벼 식물세포에 도입하여 유전체를 교정하는 단계; 및
(b) 상기 유전체가 교정된 벼 식물세포로부터 벼 식물체를 재분화하는 단계;를 포함하는, OsAAP2 유전자가 교정된 벼 식물체의 제조방법. - 제2항에 있어서, 상기 (a) 단계의 가이드 RNA 및 엔도뉴클레아제 단백질을 벼 식물세포에 도입하는 것은, 서열번호 2 또는 3의 염기서열로 이루어진, 벼 유래 OsAAP2 유전자의 표적 염기서열에 특이적인 가이드 RNA를 암호화하는 DNA 및 엔도뉴클레아제 단백질을 암호화하는 핵산 서열을 포함하는 재조합 벡터; 또는 서열번호 2 또는 3의 염기서열로 이루어진, 벼 유래 OsAAP2 유전자의 표적 염기서열에 특이적인 가이드 RNA와 엔도뉴클레아제 단백질의 복합체(ribonucleoprotein);를 이용하는 것을 특징으로 하는 제조방법.
- 삭제
- 제2항 또는 제3항의 방법에 의해 제조된 OsAAP2 유전자가 교정된 벼 식물체.
- 제5항에 따른 벼 식물체의 유전체가 교정된 종자.
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| US20220396804A1 (en) | 2019-09-05 | 2022-12-15 | lnstitute of Genetics and Developmental Biology Chinese Academy of Sciences | Methods of improving seed size and quality |
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Non-Patent Citations (3)
| Title |
|---|
| Heming Zhao 외 4인, Genome-Wide Survey and Expression Analysis of Amino Acid Transporter Gene Family in Rice (Oryza sativa L.), PLoS ONE 7(11), November 15, 2012년* |
| NCBI Reference Oryza sativa Japonica Group cDNA clone_002-115-E07, full insert sequen, ACCESSION no. AK106762, 2008년 개시* |
| Shiyu Wang 외 5인, Targeted mutagenesis of amino acid transporter genes for rice quality improvement using the CRISPR/Cas9 system, The Crop Journal, Volume 8, Issue 3, Pages 457-464, 2020년* |
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