相关实验视频
Updated: Jun 13, 2025
08:38
Targeted DNA Methylation Analysis by Next-generation Sequencing
Published on: February 24, 2015
37.0K
超越基因对:在测序技术之间进行基因组范围的DNA甲基化概况的比较
Xin Liu1,2, Yu Pang3, Junqi Shan4
1Anhui Province Key Laboratory of Medical Physics and Technology, Institute of Health and Medical Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, Anhui Province 230031, China.
Briefings in bioinformatics
|September 10, 2024
概括
通过比较DNA甲基化测序,MGI DNBSEQ-T7显示出比Illumina NovaSeq 6000更好的原始读数,但覆盖范围的统一性较低. 在全基因组二硫酸盐测序 (WGBS) 中,NovaSeq的表现更好.
科学领域:
- 基因组学就是基因组学.
- 表观遗传学 在表观遗传学中,表观遗传学是指表观遗传学.
- 分子生物学分子生物学
背景情况:
- DNA甲基化对于基因调节,发育和疾病至关重要.
- 全基因组双硫酸盐测序 (WGBS) 和减少表示双硫酸盐测序 (RRBS) 是基因组规模DNA甲基化分析的关键.
- Illumina NovaSeq 6000和MGI DNBSEQ-T7是受欢迎的平台,但缺乏直接的性能比较.
研究的目的:
- 系统地比较Illumina NovaSeq 6000和MGI DNBSEQ-T7平台的WGBS和RRBS的性能.
- 评估关键指标,包括读数质量,基因组覆盖,甲基化水平,可重现性和差异甲基化检测.
- 为选择合适的二硫酸盐测序平台提供数据驱动的见解.
主要方法:
- 在两个平台上构建60个WGBS和RRBS库,使用多种不同的临床样本.
- 产生大约2.8TB的测序数据.
- 对质量控制指标,基因组覆盖,CpG甲基化,平台间相关性和差异甲基化分析的全面分析.
主要成果:
- DNBSEQ-T7显示出优越的原始读取质量,但注意到潜在的基础质量被高估了.
- NovaSeq 6000提供了更高的测序深度和更均的覆盖范围,特别是在富含GC的地区.
- 这两个平台都显示出WGBS和RRBS的高可重现性,NovaSeq在WGBS性能方面表现出色.
- DNBSEQ-T7倾向于丰富甲基化区域,影响了比较分析.
结论:
- 无论是NovaSeq 6000还是DNBSEQ-T7平台,都为通过WGBS和RRBS进行DNA甲基化分析提供了强大的性能.
- 平台的选择应考虑特定的实验需求,特别是关于覆盖的统一性和GC丰富的区域分析.
- 对于需要全面覆盖的WGBS应用,NovaSeq 6000可能更好,而DNBSEQ-T7在原始读取质量方面具有优势.
相关概念视频
03:00Next-generation Sequencing
88.4K
The first human genome sequencing project cost $2.7 billion and was declared complete in 2003, after 15 years of international cooperation and collaboration between several research teams and funding agencies. Today, with the advent of next-generation sequencing technologies, the cost and time of sequencing a human genome have dropped over 100 fold.
Next-Generation Sequencing Methods
Although all next-generation methods use different technologies, they all share a set of standard features....
Next-Generation Sequencing Methods
Although all next-generation methods use different technologies, they all share a set of standard features....
88.4K
02:54Evolutionary Relationships through Genome Comparisons
5.7K
Genome comparison is one of the excellent ways to interpret the evolutionary relationships between organisms. The basic principle of genome comparison is that if two species share a common feature, it is likely encoded by the DNA sequence conserved between both species. The advent of genome sequencing technologies in the late 20th century enabled scientists to understand the concept of conservation of domains between species and helped them to deduce evolutionary relationships across diverse...
5.7K
03:21RNA-seq
9.9K
RNA sequencing, or RNA-Seq, is a high-throughput sequencing technology used to study the transcriptome of a cell. Transcriptomics helps to interpret the functional elements of a genome and identify the molecular constituents of an organism. Additionally, it also helps in understanding the development of an organism and the occurrence of diseases.
Before the discovery of RNA-seq, microarray-based methods and Sanger sequencing were used for transcriptome analysis. However, while...
Before the discovery of RNA-seq, microarray-based methods and Sanger sequencing were used for transcriptome analysis. However, while...
9.9K