通过基因组在现场杂交 (GISH) 建立跨基因或跨物种杂交的方法
Pooja Pathania1, S Rajkumar2, Gayacharan1
1ICAR-National Bureau of Plant Genetic Resources, New Delhi, India.
Methods in molecular biology (Clifton, N.J.)
|October 1, 2025
概括
基因组在位杂交 (GISH) 可视化杂交中的父母基因组,有助于跨种杂交的成功. 这种细胞遗传学工具对于植物育种和开发新作物品种至关重要.
科学领域:
- 细胞遗传学 细胞遗传学
- 分子生物学分子生物学
- 植物科学 植物科学
背景情况:
- 跨物种杂交计划需要精确的方法来分析杂交后代.
- 了解基因组组成和稳定性对于成功的繁殖至关重要.
研究的目的:
- 突出基因组现场杂交 (GISH) 作为细胞遗传学工具的实用性.
- 展示GISH在分析杂交基因组和支持植物育种方面的作用.
主要方法:
- 用全基因组DNA作为探针进行基因组现场杂交 (GISH).
- 在混合细胞内可视化和识别父母基因组.
- 检测染色体重排和内进.
主要成果:
- 吉什成功地可视化和识别了杂交后代的父母基因组.
- 该技术允许检测染色体重排和内进.
- 在评估杂交成功和基因组组成方面,GISH是有效的.
结论:
- 基因组在现场杂交是一种强大的工具,用于跨物种杂交分析.
- GISH有助于监测基因组稳定性和表征新型混合基因组.
- GISH的应用对推进植物育种计划有重大影响.
相关概念视频
In-situ Hybridization
10.4K
In situ hybridization (ISH) is a technique used to detect and localize specific DNA or RNA molecules in cells, tissue, or tissue sections using a labeled probe. The technique was first used in 1969 for the investigation of nucleic acids. It is currently an essential tool in scientific research and clinical settings, especially for diagnostic purposes.
Types of probes and labels
A probe is a complementary strand of DNA or RNA that binds to corresponding nucleotide sequences in a cell. Many...
Types of probes and labels
A probe is a complementary strand of DNA or RNA that binds to corresponding nucleotide sequences in a cell. Many...
10.4K
FISH - Fluorescent In-situ Hybridization
23.8K
Fluorescence in situ hybridization, or FISH, was developed in the early 1980s and has quickly become one of the most widely used techniques in cytogenetics. Labeled probes are used to bind complementary DNA or RNA sequences on a chromosome or in a region within a cell. Earlier, the probes could only be obtained by cloning or reverse transcription of a DNA template. Currently, the probe oligonucleotides can be synthesized synthetically. Additionally, with the advancement of optical techniques,...
23.8K


