一个全面的少数民族人口全基因组数据库
Yan He1, Changgui Lei2,3,4, Chanjuan Wan1
1Key Laboratory of Endemic and Ethnic Diseases, Ministry of Education and Key Laboratory of Medical Molecular Biology of Guizhou Province, Collaborative Innovation Center for Prevention and Control of Endemic and Ethnic Regional Diseases Co-constructed by the Province and Ministry, Guizhou Medical University, Guiyang, 550004, Guizhou, China.
Scientific reports
|June 17, 2024
概括
贵州多民族基因组数据库 (GMGD) 为中国的11个少数民族提供了关键的全基因组数据. 该资源增强了对遗传多样性的理解,并支持精准医学研究.
科学领域:
- 基因组学就是基因组学.
- 人口遗传学 人口遗传学
- 生物信息学是一种生物信息学.
背景情况:
- 中国表现出显著的种族多样性,需要来自不同人口的全面基因组数据.
- 现有的研究对少数民族群体的全基因组数据很少.
- 了解人群特异性遗传变异对于推进精准医学至关重要.
研究的目的:
- 建立贵州多民族基因组数据库 (GMGD),以解决中国少数民族缺少基因组数据的问题.
- 为人口遗传学和精确医学研究提供全面的资源.
- 促进跨不同种族群体的遗传多样性研究.
主要方法:
- 来自贵州省11个少数民族的476名健康,无血缘关系的个体的全基因组测序.
- 对GRCh38和GRCh37的人类基因组参考进行变异调用和注释.
- 开发具有多维搜索功能和基因型归算功能的交互式数据库接口.
主要成果:
- GMGD包含超过1633万个变体 (GRCh38) 和1620万个变体 (GRCh37).
- 很大一部分变异 (11.9%在GRCh38,18.5%在GRCh37) 是新的,不存在dbSNP.
- 该数据库为这些代表性不足的人群的遗传多样性景观提供了有价值的见解.
结论:
- 迄今为止,GMGD是迄今为止中国多样化族群的最大的全基因组数据库.
- 该数据库提供独特的基因组变异数据,对人口遗传学和精准医学至关重要.
- GMGD是免费访问的,促进对少数民族基因组学的进一步研究.
相关概念视频
Genome-wide Association Studies-GWAS
13.3K
Genome-wide association studies or GWAS are used to identify whether common SNPs are associated with certain diseases. Suppose specific SNPs are more frequently observed in individuals with a particular disease than those without the disease. In that case, those SNPs are said to be associated with the disease. Chi-square analysis is performed to check the probability of the allele likely to be associated with the disease.
GWAS does not require the identification of the target gene involved in...
GWAS does not require the identification of the target gene involved in...
13.3K
Genomics
36.3K
Genomics is the science of genomes: it is the study of all the genetic material of an organism. In humans, the genome consists of information carried in 23 pairs of chromosomes in the nucleus, as well as mitochondrial DNA. In genomics, both coding and non-coding DNA is sequenced and analyzed. Genomics allows a better understanding of all living things, their evolution, and their diversity. It has a myriad of uses: for example, to build phylogenetic trees, to improve productivity and...
36.3K
Evolutionary 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
Multi-species Conserved Sequences
3.9K
Next-generation sequencing technologies have created large genomic databases of a variety of animals and plants. Ever since the human genome project was completed, scientists studied the genome of primates, mammals, and other phylogenetically distant living beings. Such large-scale studies have provided new insights into the evolutionary relationship between organisms.
Although the genome of each species varies greatly from each other, a few sequences are highly conserved. Such conserved...
Although the genome of each species varies greatly from each other, a few sequences are highly conserved. Such conserved...
3.9K
What is Population Genetics?
57.9K
A population is composed of members of the same species that simultaneously live and interact in the same area. When individuals in a population breed, they pass down their genes to their offspring. Many of these genes are polymorphic, meaning that they occur in multiple variants. Such variations of a gene are referred to as alleles. The collective set of all the alleles within a population is known as the gene pool.
57.9K


