搜索结果: 1-15 共查到“知识库 农学 CRISPR”相关记录43条 . 查询时间(0.062 秒)
Combined fluorescent seed selection and multiplex CRISPR/Cas9 assembly for fast generation of multiple Arabidopsis mutants
Plant gene editing Fluorescent seed selection Co-transformation Cas9 zCas9i pEC1.2 PcUBi4-2
2023/11/30
Multiplex CRISPR-Cas9-based genome editing is an efficient method for targeted disruption of gene function in plants. Use of CRISPR-Cas9 has increased rapidly in recent years and is becoming a routine...
Nonhomologous end joining as key to CRISPR/Cas-mediated plant chromosome engineering
CRISPR Cas plant chromosome；plant breeding；Arabidopsis thaliana；Genome editing NHEJ
2023/11/30
Although clustered regularly interspaced short palindromic repeats (CRISPR)/CRISPR-associated protein (Cas)-mediated gene editing has revolutionized biology and plant breeding, large-scale, heritable ...
CRISPR/Cas9-mediated P-CR domain-specific engineering of CESA4 heterodimerization capacity alters cell wall architecture and improves saccharification efficiency in poplar
cellulose；CESA4 homo/ heterodimerization；CRISPR/Cas9 Populus；saccharification secondary；cell wall
2023/11/30
Cellulose is the most abundant unique biopolymer in nature with widespread applications in bioenergy and high-value bioproducts. The large transmembrane-localized cellulose synthase (CESA) complexes (...
Covering the Combinatorial Design Space of Multiplex CRISPR/Cas Experiments in Plants
combinatorial gene knockout libraries crop breeding experimental design multiplex CRISPR/Cas screens plant genetic studies
2023/11/28
Over the past years, CRISPR/Cas-mediated genome editing has revolutionized plant genetic studies and crop breeding. Specifically, due to its ability to simultaneously target multiple genes, the multip...
Opportunities and challenges with CRISPR-Cas mediated homologous recombination based precise editing in plants and animals
CRISPR-Cas Homology directed repair (HDR) Non-homologous end joining (NHEJ) Knock-in Gemini virus replicon (GVR) Gene targeting (GT)
2023/11/16
The genome editing has revolutionized the agriculture and human therapeutic sectors by its ability to create precise, stable and predictable mutations in the genome. It depends upon targeted double-st...
棉花CRISPR/Cas9基因编辑有效sgRNA高效筛选体系的研究
棉花 瞬时转化 CRISPR/Cas9 基因组编辑
2021/1/28
单向导RNA (sgRNA)是CRISPR/Cas9基因组编辑技术体系的重要元件之一。然而研究显示, 很多sgRNA不能有效工作, 因此需要对多个设计的候选sgRNA进行筛选, 以验证它们的有效性。早期对sgRNA有效性的验证采用的是完整编辑载体瞬时转化原生质体或者叶片的方法。这些方法费时费力, 成功率不高, 尤其是对于原生质体制备效率比较低的棉花。本研究针对GhMAPKKK2和GhAE基因分别设...
旨在探究水稻OsGRAS39（LOC_Os10g22430.1）基因的功能，采用qRT-PCR技术分析OsGRAS39在水稻不同组织中及不同非生物胁迫条件、ABA和GA3处理下的表达情况，并基于CRISPR/Cas9技术创建OsGRAS39基因敲除突变体。qRT-PCR分析结果表明，OsGRAS39在所有检测的组织中均表达，其mRNA丰度在水稻幼苗中最高，然后依次是幼根、叶片，而在抽穗期水稻的叶鞘...
为了培育耐盐水稻品种，利用CRISPR/Cas9基因编辑技术，在水稻品种东农427的耐盐负调控基因OsEIL1和OsEIL2设计1个敲除靶点对其进行同时敲除。通过PCR和测序的方法，在T0共检测出了5个突变单株，其中有1株为双基因同时突变的植株。在该植株的T1株系中，获得了4株双基因纯合突变且不含T-DNA元件插入的植株。在T2进行苗期耐盐性鉴定，成熟期考察农艺性状指标。结果表明，在苗期200 m...
规律性成簇间隔的短回文重复序列/CRISPR相关蛋白（clustered regularly interspaced short palindromic repeats/CRISPR-associated，CRISPR/Cas）系统是最新一代能对细胞或生物体基因组进行精准编辑的基因工程技术，与前两代基因编辑技术ZFN和TALEN相比，CRISPR/Cas具有应用成本低、适用编辑范围广、打靶效率高、...
鸡Apob基因组织表达与CRISPR/Cas9敲除系统的构建
鸡 Apob基因 CRISPR/Cas9 脂质代谢
2021/3/30
旨在探究Apob基因在鸡肝脂质代谢过程中的功能。本研究对鸡Apob蛋白进行理化性质分析；利用RT-qPCR检测Apob基因在4周龄黄羽肉鸡组织中的表达情况，每组设置3个重复，进行3次平行试验。根据鸡Apob蛋白关键结构域，在Apob基因外显子设计3对sgRNA，构建Cas/gRNA载体；将重组质粒转染DF-1细胞后，利用T7核酸内切酶I （T7 endonuclease I，T7EI）酶切法和TA...
CRISPR/Cas9基因编辑技术已经成为水稻育种的重要手段。为培育早熟、丰产、优质的种质资源，以农艺性状优良、迟熟粳稻品种香糯99-25为试验材料，构建了CRISPR/Cas9双靶点表达载体对抽穗期基因DTH8进行编辑，采用农杆菌介导法将构建好的表达载体转化农杆菌EHA105。用携带重组质粒的农杆菌菌液侵染水稻愈伤组织，成功获得了30株T0转基因苗。对T0植株利用潮霉素特异引物进行分子检测，其中...
簇状规则间隔的短回文重复序列（CRISPR）/CRISPR相关蛋白（Cas）系统是一种针对入侵核酸的可遗传性原核适应性免疫系统。CRISPR/Cas系统可以产生高度特异性的基因双链断裂，并通过非同源末端连接（NHEJ）或者同源重组（HR）进行修复，如今已经成为许多生物方便有效的基因组编辑工具。结核分枝杆菌因其基因操作的复杂性，其基因组研究存在诸多困难，因此，CRISPR/Cas系统的出现对结核分枝...
Creating Novel Wx Alleles with Fine-tuned Amylose Levels and Improved Grain Quality in Rice by Promoter Editing using CRISPR/Cas9 System
CRISPR/Cas9 System Fine-tuned Amylose Grain Quality Rice
2023/8/9
In rice, the Waxy (Wx) gene encoding GBSSI (granule-bound starch synthase I) controls amylose synthesis in the endosperm and is the primary factor influencing grain eating and cooking quality (ECQ). T...
利用CRISPR/Cas9技术编辑水稻温敏不育基因TMS5
水稻 CRISPR/Cas9 温敏不育 TMS5 杂交组合
2021/1/4
tms5是生产上应用最广泛的温敏不育基因。为创制新型水稻温敏核不育系, 利用CRISPR/Cas9基因编辑技术将6个优异的粳稻和4个优异的籼稻的TMS5基因敲除, 获得了温敏核不育系。比较发现, 粳稻温敏不育系ZG75S、CYGS、YG0618S、ZG07S、T0361S、7679S的不育起点温度在28~32°C之间, 籼稻温敏核不育系2537S、6150S、6379S的不育起点温度在24~28°...