共查询到20条相似文献,搜索用时 15 毫秒
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《Trends in microbiology》2023,31(9):947-958
Oomycetes are a group of microorganisms that include pathogens responsible for devastating diseases in plants and animals worldwide. Despite their importance, the development of genome editing techniques for oomycetes has progressed more slowly than for model microorganisms. Here, we review recent breakthroughs in clustered regularly interspaced short palindromic repeats (CRISPR)-Cas technologies that are expanding the genome editing toolbox for oomycetes – from the original Cas9 study to Cas12a editing, ribonucleoprotein (RNP) delivery, and complementation. We also discuss some of the challenges to applying CRISPR-Cas in oomycetes and potential ways to overcome them. Advances in CRISPR-Cas technologies are being used to illuminate the biology of oomycetes, which ultimately can guide the development of tools for managing oomycete diseases. 相似文献
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基因组编辑技术,作为一项生物医学领域的革新技术,已经在动物、植物和微生物基因组改造中得到了广泛的应用。以CRISPR/Cas9为主导的基因组编辑技术掀起了基因组编辑的浪潮,在功能基因组学、遗传改良育种、遗传病治疗等研究中展示出其极大的价值与潜力。本专刊报道了基因组编辑技术的总体状况、在相关领域的基础与应用研究、该技术当前存在的优缺点以及未来展望等。 相似文献
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正Technologies for targeted modification of eukaryotic genomes are of great value for elucidating and manipulating gene functions in fundamental and applied biological research.In the past two decades,genome editing tools have evolved quickly from random DNA mutagenesis-inducing chemicals or ionizing radiation to programmable sequencespecific nucleases(SSNs)with the CRISPR/Cas technology as the most significant breakthrough(Gaj et al.,2013). 相似文献
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《中国科学:生命科学英文版》2017,(5)
Many genome editing tools have been developed and new ones are anticipated; some have been extensively applied in plant genetics, biotechnology and breeding, especially the CRISPR/Cas9 system. These technologies have opened up a new era for crop improvement due to their precise editing of user-specified sequences related to agronomic traits. In this review, we will focus on an update of recent developments in the methodologies of editing reagent delivery, and consider the pros and cons of current delivery systems. Finally, we will reflect on possible future directions. 相似文献
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In metabolic engineering, genome editing tools make it much easier to discover and evaluate relevant genes and pathways and construct strains. Clustered regularly interspaced palindromic repeats (CRISPR)-associated (Cas) systems now have become the first choice for genome engineering in many organisms includingindustrially relevant ones. Targeted DNA cleavage by CRISPR-Cas provides variousgenome engineering modes such as indels, replacements, large deletions, knock-in and chromosomal rearrangements, while host-dependent differences in repair pathways need to be considered. The versatility of the CRISPR system has given rise to derivative technologies that complement nuclease-based editing, which causes cytotoxicity especially in microorganisms. Deaminase-mediated base editing installs targeted point mutations with much less toxicity. CRISPRi and CRISPRa can temporarily control gene expression without changing the genomic sequence. Multiplex, combinatorial and large scale editing are made possible by streamlined design and construction of gRNA libraries to further accelerates comprehensive discovery, evaluation and building of metabolic pathways. This review summarizes the technical basis and recent advances in CRISPR-related genome editing tools applied for metabolic engineering purposes, with representative examples of industrially relevant eukaryotic and prokaryotic organisms. 相似文献
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Vento Justin M. Crook Nathan Beisel Chase L. 《Journal of industrial microbiology & biotechnology》2019,46(9-10):1327-1341
Journal of Industrial Microbiology & Biotechnology - Genome editing is essential for probing genotype–phenotype relationships and for enhancing chemical production and phenotypic... 相似文献
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Witzany G 《World journal of biological chemistry》2010,1(11):348-352
The biocommunicative approach investigates communication processes within and among cells, tissues, organs and organisms as sign-mediated interactions, and nucleotide sequences as code, i.e. language-like text, which follows in parallel three kinds of rules: combinatorial (syntactic), context-sensitive (pragmatic), and content-specific (semantic). Natural genome editing from a biocommunicative perspective is competent agent-driven generation and integration of meaningful nucleotide sequences into pre-existing genomic content arrangements and the ability to (re-)combine and (re-)regulate them according to context-dependent (i.e. adaptational) purposes of the host organism. 相似文献
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正A large number of beneficial agronomic traits in crops are associated with single nucleotide polymorphisms (SNPs) or point mutations (Jiao et al., 2010; Li et al., 2017; Ma et al.,2015). In the past, site-specific point mutations in a target gene can only be achieved through the CRISPR/Cas9-mediated gene replacement via the homology-directed repair(HDR). However, the intrinsically low HDR activity in plant cells and the lack of efficient way to supply abundant HDR templates in plant nucleus have greatly limited the success 相似文献
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Chidananda Nagamangala Kanchiswamy 《Plant cell reports》2016,35(7):1469-1474
Evolution of the next-generation clustered, regularly interspaced, short palindromic repeat/Cas9 (CRISPR/Cas9) genome editing tools, ribonucleoprotein (RNA)-guided endonuclease (RGEN) RNPs, is paving the way for developing DNA-free genetically edited crop plants. In this review, I discuss the various methods of RGEN RNPs tool delivery into plant cells and their limitations to adopt this technology to numerous crop plants. Furthermore, focus is given on the importance of developing DNA-free genome edited crop plants, including perennial crop plants. The possible regulation on the DNA-free, next-generation genome-edited crop plants is also highlighted. 相似文献
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FLASH assembly of TALENs for high-throughput genome editing 总被引:5,自引:0,他引:5