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London Calling 2023

5 月 17 日至 19 日
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Population genomics

The advent of high-throughput genomic analysis technologies has driven the field of population genomics — the large-scale comparison of genomes within a population. Population genomics has been fundamental to the identification of novel variation that can define specific phenotypes, such as disease susceptibility; however, the technical limitations of traditional analysis platforms may miss important sources of genomic variation. Combining long sequencing reads (up to 4 Mb) with high sample throughput (up to 14 Tb on PromethION*) nanopore technology makes it possible to generate highly contiguous genomes, with resolution and phasing of single nucleotide variants (SNVs), structural variants (SVs), repeats, and DNA methylation in a single assay — across 10’s to 1,000’s of samples. Long read sequencing of 3,622 Icelanders provides insight into the role of structural variants in human diseases and other traits
Read the publication
We identified over 22,636 SVs per individual, three to five times more than found with short-read sequencing data
Beyter et al. bioRxiv 848366 (2021)

Oxford Nanopore sequencing

Traditional short-read technologies

Comprehensive genomic characterisation

 Long reads grey in circle

Limited genomic characterisation

Short sequencing reads do not typically span important classes of genomic aberrations such as large structural variants and repeat regions, instead relying on indirect inference and/or complex computational analyses for their detection. The requirement of traditional sequencing technologies for amplification can also introduce sequence bias and removes base modifications. As a result, only a fraction of the genomic variation present in a sample may be identified.

Flexible and on demand

  • Scalable, affordable devices to suit all genome and project sizes
  • Generate terabases of data with PromethION — use up to 48 high-capacity flow cells simultaneously or independently to match your sample availability and lab requirements
  • Sequence smaller genomes at high throughput or perform low-pass sequencing of larger genomes with GridION
  • Discover the advantages of nanopore sequencing and undertake pilot projects with MinION, at just $1,000, including flow cells and sequencing reagents
  • Perform sample QC prior to large-scale studies using Flongle, with flow cells at $90 each
streaming

Limited flexibility

Traditional high-throughput benchtop sequencing devices require significant infrastructure requirements and expense — confining their use to well-resourced, centralised locations. Sample batching is often required for optimal efficiency, potentially leading to long turnaround times.

Streamlined workflows

  • Prepare DNA samples for sequencing in as little as 10 minutes, including multiplexing
  • Easy-to-automate sample preparation kits and protocols suitable for large-scale population genomics projects
  • Low DNA input requirements
  • Run multiple analyses — whole genome, targeted, and full-length RNA sequencing — on a single device and at the same time, with modular PromethION and GridION
run-time

Laborious workflows

Typically, lengthy sample preparation requirements and long sequencing run times, reducing workflow efficiency and increasing turnaround times.

Real-time data streaming

  • Analyse data as it is generated for immediate insights
  • Gain enhanced coverage of specific genomic regions with real-time targeted sequencing using adaptive sampling
  • Stop sequencing when sufficient data generated — wash and reuse flow cell
run-time

Fixed run time with bulk data delivery

Increased time-to-result and inability to identify workflow errors until it’s too late, plus additional practical complexities of handling large volumes of bulk sequence data.

WHITE PAPER

New insights into large genomes

Discover how researchers worldwide are utilising long nanopore sequencing reads to support the generation of highly accurate and contiguous, chromosome-level genome assemblies across many different species. With the facility to generate read lengths in excess of 4 Mb, nanopore sequencing reads enable complete resolution of challenging genomic regions, allowing identification of previously hidden genomic variation — providing new insights into evolution and disease association.
Find more publications on the use of nanopore sequencing for large-scale population genomics studies in our Resource centre.
Find more publications on the use of nanopore sequencing for large-scale population genomics studies in our Resource centre.
Population genomics resources
WHITE PAPER-image
下载白皮书
PromethION-population-genomics
Read the publication

CASE STUDY

Structural variants and their impact on phenotypes, diseases, and population adaptation

In pursuit of a more comprehensive genomic characterisation of the Chinese population, Wu et al. performed a large-scale analysis of 405 individuals using long nanopore sequencing reads delivered by the high-throughput PromethION device. The team identified 132,312 structural variants (SVs), of which 53% were novel. Furthermore, they identified new SV associations with phenotypes and disease, including body height and anaemia.
‘Our study reveals the complex landscape of human SVs in unprecedented detail and provides new insights into their roles contributing to phenotypes, diseases and evolution’
Wu, Z. et al. bioRxiv 430378 (2021).
CASE STUDY 1 -CARD
Find out how nanopore sequencing enables comprehensive variant detection — from SNVs and phasing, to SVs and base modifications — in our Investigations pages.
Structural variation View all applications
karen-miga-350
Read the paper Watch the video

CASE STUDY

Closing the gaps in the human genome

Almost 20 years after the first draft of the human genome was declared complete, there are still large regions (up to 8% of the genome) that remain elusive to analysis using traditional sequencing technologies. To finally deliver upon the promise of human genomics and personalised medicine, researchers and consortia, such as the Telomore-to-Telomere (T2T) consortium, are utlising long nanopore sequencing reads to complete human genomes, spanning important, highly repetitive regions such as centromeres and telomeres, plus large structural variants. To date, the T2T consortium has delivered complete, gapless assemblies and novel functional insights into human chromosomes X and 8 — including comprehensive analysis of DNA methylation alongside nucleotide sequence.
‘finishing the entire human genome is now within reach’
Miga et al. Nature 585 (2020).
Discover how researchers are utilising long nanopore sequencing reads to uncover previously hidden genomic variation and deliver more contiguous human genomes in our White paper.
Discover how researchers are utilising long nanopore sequencing reads to uncover previously hidden genomic variation and deliver more contiguous human genomes in our White paper.
Human genetics White paper Population genomics resources

开始使用

Scalable sequencing for population genomics

Nanopore sequencing is uniquely scalable — from portable Flongle and MinION devices, ideal for sample QC and pilot studies, through to the high-throughput benchtop GridION and PromethION platforms, which offer rapid and affordable access to the high yields of high-quality data required for large-scale population genomics projects.
产品比较
PromethION24-output
Gigabases in 48 hours ‡ (log10)

*Flongle is a flow cell adapter for MinION and GridION, designed for rapid and cost-effective analysis of smaller tests and samples.
†Based
‡Devices

Recommended for 群体基因组学

PromethION

用于生产规模的高通量设备，按需访问 Tb数量级的 DNA 和 RNA 序列数据。每张测序芯片均可以为纳米孔测序提供最低的单 Gb 价格，同时具有同时运行高达 24 或 48 张芯片的灵活性。可投资固定资产或耗材预算，可选择提供纳米孔测序服务。

为什么选择 PromethION?

  • 运行多达 24 或 48 个可独立寻址的高产出 PromethION 测序芯片
  • 在一个实验室中轻松容纳多台设备
  • 并行运行单个样本，以前所未有的时间到答案周转速度快速表征大型基因组
  • 生成低于 1000 美元的人类基因组
立即购买 了解更多
Flongle on black for cards Flongle 转换 MinION 和 GridION 进行较小、频繁、快速的测试和分析 了解更多 PromethION2solo Showcase dark lights MinION 用于 DNA 和 RNA 测序的唯一便携式、实时设备 了解更多 GridION black background GridION 紧凑型台式设备，设计用于运行并分析多达 5 张 Flongle 或 MinION 测序芯片 了解更多 PromethION on black for cards PromethION 大规模、长读长、直接 DNA 和 RNA 测序。 了解更多

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