基于原生质的再生使CRISPR/Cas9在两种温度Japonica的水作物中应用成为可能
Marion Barrera1, Blanca Olmedo1, Matías Narváez2
1Biotechnology Laboratory, La Platina Research Station, National Institute of Agriculture (INIA), Santiago 8831314, Chile.
Plants (Basel, Switzerland)
|July 12, 2025
概括
一个新的协议使得温带气候的日本大米中的原质细胞再生和基因编辑成为可能. 这一进步支持利用新基因组技术 (NGT) 提高作物适应性和弹性.
科学领域:
- 植物生物技术 植物生物技术
- 农作物科学 农作物科学
- 分子生物学分子生物学
背景情况:
- 温和的日本米品种提供高谷物质量,但在温暖的气候下苦苦扎,需要改进的育种策略.
- 像CRISPR-Cas9这样的新基因组技术 (NGT) 对米改良具有前景,但对于温带的日本,需要高效的体外系统.
- 对于温带的日本大米,现有的体外系统发展不足,阻碍了先进的育种技术的应用.
研究的目的:
- 开发一种可复制和适应的协议,用于在温带地区的日本大米中进行原生质分离和再生.
- 在这些大米品种中建立一个功能性基因编辑系统,使用原生质.
- 支持NGT的应用,以增强适应寒冷的水品种.
主要方法:
- 来自温带日本大米品种"Ónix"和"Platino"的体胚胎被用于原始细胞分离.
- 原生质被酶消化并通过酸盐珠封装和料细胞共同培养再生.
- 进行过渡性基因表达测试,包括OSDST基因的CRISPR-Cas9编辑.
主要成果:
- 建立了一个强大的原生细胞分离和再生协议,产生胚胎性和幼苗.
- 孤立的原生质体显示出高活力 (70-99%) 并支持高效的短暂基因传递 (GFP和CRISPR-Cas9).
- 在原生质中成功编辑OSDST基因的基因组,证明了该系统的基因编辑能力.
结论:
- 开发的协议提供了一个可扩展和基因型适应的平台,用于温带日本大米的原生质再生.
- 该系统促进了NGT的应用,包括CRISPR-Cas9,用于精英大米品种的向基因编辑.
- 这些发现将推进旨在提高适应寒冷适应米品种的适应性和弹性的育种计划.
更多相关视频
09:43Author Spotlight: Streamlining Rice Breeding with CRISPR/Cas for Obtaining Optimal Phenotypic and Agronomic Traits
Published on: January 3, 2025
2.6K
12:59High-throughput CRISPR Vector Construction and Characterization of DNA Modifications by Generation of Tomato Hairy Roots
Published on: April 30, 2016
18.1K
相关概念视频
CRISPR/Cas9 Genome Editing
272
The CRISPR-Cas system serves as a bacterial defense mechanism against invading genetic elements such as viruses and plasmids, forming the foundation for its adaptation as a powerful genome-editing tool. Originally discovered in prokaryotes, this system has been repurposed to revolutionize genetic engineering across a wide range of organisms, including plants, animals, and humans. The core component, Cas9, is an endonuclease derived from Streptococcus pyogenes, capable of introducing...
272
CRISPR and crRNAs
17.4K
Bacteria and archaea are susceptible to viral infections just like eukaryotes; therefore, they have developed a unique adaptive immune system to protect themselves. Clustered regularly interspaced short palindromic repeats and CRISPR-associated proteins (CRISPR-Cas) are present in more than 45% of known bacteria and 90% of known archaea.
The CRISPR-Cas system stores a copy of foreign DNA in the host genome and uses it to identify the foreign DNA upon reinfection. CRISPR-Cas has three different...
The CRISPR-Cas system stores a copy of foreign DNA in the host genome and uses it to identify the foreign DNA upon reinfection. CRISPR-Cas has three different...
17.4K
Transgenic Plants
7.4K
Recombinant DNA technology called transgenesis is often used to add a foreign gene or remove a detrimental gene from an organism. Such genetically modified organisms are called transgenic organisms.
The first-ever transgenic plant was a tobacco plant developed in 1983 that showed resistance against the tobacco mosaic virus. Since then, many transgenic plants have been developed and commercialized for improving the agricultural, ornamental, and horticultural value of a crop plant. Transgenic...
The first-ever transgenic plant was a tobacco plant developed in 1983 that showed resistance against the tobacco mosaic virus. Since then, many transgenic plants have been developed and commercialized for improving the agricultural, ornamental, and horticultural value of a crop plant. Transgenic...
7.4K
Homologous Recombination
52.4K
The basic reaction of homologous recombination (HR) involves two chromatids that contain DNA sequences sharing a significant stretch of identity. One of these sequences uses a strand from another as a template to synthesize DNA in an enzyme-catalyzed reaction. The final product is a novel amalgamation of the two substrates. To ensure an accurate recombination of sequences, HR is restricted to the S and G2 phases of the cell cycle. At these stages, the DNA has been replicated already and the...
52.4K
Plant Tissue Culture
38.6K
Plant tissue culture is widely used in both primary and applied science. Applications range from plant development studies to functional gene studies, crop improvement, commercial micropropagation, virus elimination, and conservation of rare species.
38.6K
