相关实验视频

Updated: May 11, 2025

Targeted Next-generation Sequencing and Bioinformatics Pipeline to Evaluate Genetic Determinants of Constitutional Disease

Targeted Next-generation Sequencing and Bioinformatics Pipeline to Evaluate Genetic Determinants of Constitutional Disease

Published on: April 4, 2018

用ForenSeqTM DNA签名准备套件进行的人口研究的系统分析

Donna-Lee Pamela Martin¹, Laura Jane Heathfield¹

¹Division of Forensic Medicine and Toxicology, Department of Pathology, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa.

Journal of forensic sciences

|April 18, 2025

概括

大规模并行测序 (MPS) 增强了法医科学的遗传数据,特别是非洲人群的遗传数据. 然而,MPS研究中的非洲代表性仍然非常低,阻碍了法医应用.

科学领域:

法医遗传学法医遗传学
人口遗传学人口遗传学
大规模并行测序 (MPS) 是一种

背景情况:

法医实验室越来越多地使用基于序列的人口研究进行大规模并行测序 (MPS).
现有的数据对非洲人群来说是有限的,尽管他们的遗传多样性很高.
与毛细管电泳 (CE) 方法相比,MPS提供了增强的等位体表征.

研究的目的:

进行法医MPS人口研究的系统审查和元分析.
评估全球法医序列数据,重点关注非洲和代表性不足的人口.
使用MPS量化基因变异的增加 (等位基因数和随机匹配概率).

主要方法:

对三个数据库进行系统审查,确定40篇文章进行审查,20篇文章进行元分析.
分析的重点是使用等位基因数和随机匹配概率 (RMP) 的自体短串重复 (A-STR) 标志物.
从使用ForenSeqTM DNA签名准备套件的研究中收集的数据.

主要成果:

大多数研究 (65%) 来自高收入国家;没有来自非洲.
与基于长度的分析相比,与MPS相关的A-STR标记物的平均等位基数增加了53.08%.
非洲祖先群体在等位基因数量上表现出最大的增加和RMP的减少.

结论:

MPS显著增强了遗传变异数据,特别是在非洲人群中.
在目前的MPS法医研究中,非洲人口的代表性严重不足.
进一步的研究和数据生成对于解决这一差距和支持非洲的法医应用至关重要.

关键词:

非洲人口非洲人口.在ForenSeqTM DNA签名准备套件中.单基因频率数据的数据法医遗传学法医遗传学遗传多样性遗传多样性大规模并行测序.人口研究人口研究

更多相关视频

Metagenomic Analysis of Silage

Metagenomic Analysis of Silage

Published on: January 13, 2017

G2-seq: A High Throughput Sequencing-based Technique for Identifying Late Replicating Regions of the Genome

G2-seq: A High Throughput Sequencing-based Technique for Identifying Late Replicating Regions of the Genome

Published on: March 22, 2018

相关概念视频

Next-generation Sequencing

Next-generation Sequencing

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....

RNA-seq

RNA-seq

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...

Sanger Sequencing

Sanger Sequencing

DNA sequencing is a fundamental technique that is routinely used in the biological sciences. This method can be applied to a range of questions at different scales - from the sequencing of a cloned DNA fragment or the study of a mutation in a gene up to whole-genome sequencing. However, despite the widespread use of sequencing today, it was not until 1977 that Fredrick Sanger and his collaborators developed the chain-termination method to decode DNA sequences. It relies on the separation of a...