相关实验视频

Updated: Jun 17, 2026

Genotyping Single Nucleotide Polymorphisms in the Mitochondrial Genome by Pyrosequencing

Genotyping Single Nucleotide Polymorphisms in the Mitochondrial Genome by Pyrosequencing

Published on: February 10, 2023

线粒体基因组变异和核线粒体DNA片段在7331个人从NyuWa和1KGP

Yuanxin Wang 王园鑫^1,2, Jiajia Wang 王佳佳¹, Yanyan Li 李燕燕¹

¹State Key Laboratory of Epigenetic Regulation and Intervention, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China.

Genomics, proteomics & bioinformatics

|November 8, 2025

概括

这项研究首次对中国人口中的线粒体DNA (mtDNA) 和核线粒体DNA片段 (NUMT) 进行了全面分析,确定了用于遗传研究的新型变体和NUMT.

科学领域:

基因组学就是基因组学.
人类遗传学人类遗传学
线粒体生物学线粒体生物学

背景情况:

线粒体DNA (mtDNA) 功能障碍与疾病有关,但它在中国人群中的表征是有限的.
了解mtDNA变异和核线粒体DNA细分 (NUMTs) 对疾病研究至关重要.

研究的目的:

在中国人口中全面描述mtDNA变异和NUMT.
为中国mtDNA和NUMTs建立一个广泛的遗传资源.
调查NUMT插入模式及其与核DNA变异的关联.

主要方法:

系统分析了来自7331个个体的全基因组测序数据 (4129个中国NewWa队列,3202个来自1000个基因组项目).
识别和表征mtDNA变体和NUMTs.
在mtDNA和核DNA (nDNA) 变体之间进行全基因组关联分析.

主要成果:

确定了7216个高质量的mtDNA变异和1466个NUMT,其中88个mtDNA变异和642个NUMT特定于NyuWa队列.
所有个体都有共同的NUMT;五分之一有超稀有的NUMT,经常插入核基因区域.
在12个mtDNA变体和199个nDNA变体之间发现了显著的相关性.
与1KGP相比,NewWa队列中的罕见NUMT显示了LINE中的核断点的丰富.

结论:

这项研究提供了中国人口中NUMT的第一个全面概况.
它建立了迄今为止中国mtDNA变体和NUMT最广泛的资源.
这些发现为对mtDNA相关疾病的遗传研究提供了宝贵的参考资源.

关键词:

线粒体DNA是线粒体的DNA.NUMT NUMT 这是一个非常重要的数字.整个基因组测序的测序这种mtDNA变异是mtDNA变异.mtDNAnDNA变体的关联关系

更多相关视频

Transmitochondrial Cybrid Generation Using Cancer Cell Lines

Transmitochondrial Cybrid Generation Using Cancer Cell Lines

Published on: March 17, 2023

High-Throughput Image-Based Quantification of Mitochondrial DNA Synthesis and Distribution

High-Throughput Image-Based Quantification of Mitochondrial DNA Synthesis and Distribution

Published on: May 5, 2023

相关概念视频

Animal Mitochondrial Genetics

Animal Mitochondrial Genetics

Among all the organelles in an animal cell, only mitochondria have their own independent genomes. Animal mitochondrial DNA is a double-stranded, closed-circular molecule with around 20,000 base pairs. Mitochondrial DNA is unique in that one of its two strands, the heavy, or H, -strand is guanine rich, whereas the complementary strand is cytosine rich and called the light, or L, -strand. Compared to nuclear DNA, mitochondrial DNA has a very low percentage of non-coding regions and is marked by...

Export of Mitochondrial and Chloroplast Genes

Export of Mitochondrial and Chloroplast Genes

A eukaryotic cell can have up to three different types of genetic systems: nuclear, mitochondrial, and chloroplast. During evolution, organelles have exported many genes to the nucleus; this transfer is still ongoing in some plant species. Approximately 18% of the Arabidopsis thaliana nuclear genome is thought to be derived from the chloroplast’s cyanobacterial ancestor, and around 75% of the yeast genome derived from the mitochondria’s bacterial ancestor. This export has occurred irrespective...