PacBio
Leveraging isoform-level RNA sequencing to understand rare disease pathogenesis.
updated
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Expanding NGS truth sets with long-reads: more comprehensive variant detection in a multi-generational pedigree.
Accurate long-read sequencing characterizes the full spectrum of genetic variation across the genome, but variant calling software is still catching up to the sequencing technologies. We have generated deep Pacific Biosciences (PacBio) high-fidelity (HiFi), ultra-long Oxford Nanopore Technologies (ONT), Strand-seq, and Illumina whole-genome sequencing data to construct near-T2T, phased genome assemblies from primary material obtained from a 4-generation, 28-member CEPH pedigree (1463). We are constructing a more comprehensive and validated catalog of greater than 8 million single-nucleotide variants, indels, short tandem repeats, and structural variants, including a detailed assessment of inversion polymorphisms that associate with disease risk. The use of multiple orthogonal technologies, near-T2T phased-genome assemblies, and a multi-generation family allow us to assess inheritance patterns and to create a “truth set” for all classes of human genetic variation upon which to test and benchmark new technologies.
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1:29 - Jonas Korlach - Breakthrough discoveries in genomics, transcriptomics and epigenomics with HiFi long-read sequencing
12:25 - Andrew Stergachis - Multi-ome long-read sequencing for resolving Mendelian conditions
33:04 - Gloria Sheynkman - From genome to transcriptome to protein functions - uncovering new biology and clinical application
PacBio ASHG 2023 Workshop
This workshop delves into the forefront of genomics research! Discover how innovative researchers are leveraging the extraordinary accuracy and comprehensive coverage of HiFi sequencing to drive groundbreaking insights into the intricate world of genetic variation, RNA splicing, and epigenetic gene regulation.
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Over the past year, the Revio sequencer has been installed in over 125 labs worldwide, marking a significant leap in HiFi sequencing capabilities. It has outperformed its predecessors, like the Sequel II, in terms of yield and efficiency, and what this means for the future of genomic research.
Our journey includes firsthand accounts from scientists and researchers who have witnessed the transformative impact of Revio in their work. From drastically reducing sequencing queues to achieving unprecedented HiFi data outputs, these testimonials highlight the real-world implications of this technological advancement.
But what does this all mean for the field of genomics and beyond? Revio enhances our understanding of complete genomes, genomic phasing, native epigenetics, and the analysis of repetitive regions.
As we look to the future, we emphasize the potential of the Revio sequencer in driving forward human health research. This video is a call to action for researchers and enthusiasts alike to be a part of this exciting journey.
Join us as we celebrate the achievements of the past year and look forward to the possibilities that Revio brings to tomorrow's genomic research.
Don't forget to subscribe for more updates and insights into the world of genomics and technological innovation in science.
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2:45 - Alexander Hoischen - Exploring the potential clinical utility of HiFi
sequencing for homologous loci (pseudogenes)
PacBio HiFi long-read sequencing has the potential to become a single front-line assay for interrogating rare disease cohorts because of its ability to accurately call and phase all classes of variants. An international group of clinical researchers and PacBio have been collaborating to study the efficacy of HiFi sequencing in interrogating the many possible genetic mechanisms that underlie rare diseases. This presentation provides an overview of the group’s goals and activities and recent results, particularly around correctly resolving clinically relevant genes that lie in areas of high sequence homology or otherwise complex regions of the human genome.
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Unlock new insights faster with one complete, phased 30x human genome for each Revio SMRT Cell.
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Dr. Adam Ameur of SciLifeLab in Uppsala, Sweden, has implemented the Revio system to create new discovery opportunities for a range of HiFi sequencing applications, including whole-genome sequencing in human genomic research.
In this webinar Dr. Ameur discusses:
• More comprehensive detection of SNVs, SVs, tandem repeats, and epigenetic signals.
• Near-complete diploid assemblies generated to find complex, potential disease-causing SV regions.
• Use of the Revio system in future population-scale and single-cell sequencing research.
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Primary run QC metrics in SMRT Link let you evaluate sequencing performance, monitor performance trends, and understand how sample loading affects HiFi sequencing quality and yield.
Watch this webinar to find out more about:
HiFi sequencing primary run QC metrics and terminology.
Interpretation of key metrics and visualizations to evaluate sequencing performance.
Revio system on-instrument analysis pipelines, output files, and folder structure.
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In this webinar, Dr. Shuhua Xu, a professor of human population genetics and the Principal Investigator of the Population Omics Group at Fudan University, introduces his team's new findings in their latest Nature article.
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3:08 – High-throughput full-length isoform sequencing for bulk & single-cell transcriptome
24:15 – Moving towards a resolved atlas of cell type isoforms in the human cortex
43:16 – Long-read RNA-seq of human microglia reveals novel isoforms and elucidates genetic regulation of splicing associated with Alzheimer's and Parkinson's disease
58:38 – Cell-type-specificity of isoform diversity in the developing human neocortex informs mechanisms of neurodevelopmental disorders
1:28:50 – Visualizing Iso-Seq data with Shiny app
1:44:16 – Single-cell isoform sequencing in neurodegenerative disease
2:00:00 – Unravelling the role of transcript expression in neurodegenerative disease: insights from long-read RNA sequencing
2:23:15 – Speaker panel discussion
In this virtual symposium, hear from a variety of researchers who are using the PacBio Iso-Seq method for bulk and single-cell transcriptomics to drive cutting-edge research in neurology, neurodegenerative diseases, and brain development. Learn about the MAS-Seq for 10x Single Cell 3’ kit and get a sneak preview of the upcoming MAS-Seq for bulk Iso-Seq kit. Discover how long-read HiFi sequencing provides extraordinary discovery power for uncovering new insights in RNA biology.
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TGen, located in Phoenix, AZ, is a nonprofit biomedical research institute focused on precision medicine in areas such as oncology, pathogens and infectious diseases, rare childhood disorders, and neurological disorders.
In discussing her experience with PacBio’s Onso system, Dr. Wike highlights the system's exceptional accuracy, spotlighting its capacity to detect ultra-low variants with unprecedented precision. The significance of this accuracy is emphasized as she discusses the beauty of mapped reads and the statistical power they offer, enabling the detection of variants at an astonishingly low frequency of 0.001%.
She also explains how the high accuracy from the technology’s sequencing by binding (SBB) chemistry, reduces the need for complex library prep methods and intricate downstream bioinformatics pipelines in the short-read sequencing space. With the PacBio Onso system, researchers like Dr. Wike can trust that the data they see is a direct representation of their findings, removing the need for additional error correction processes.
Beyond the technical intricacies, Dr. Wike discusses PacBio’s collaboration with TGen and how Onso, with its ability to detect variants at such high accuracy, will enable TGen to continue asking the questions that push the boundaries of precision medicine.
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Isoform resolved transcriptome of the human preimplantation embryo - Denis Torre
Understanding the boundaries between PTSD and depression through alternative splicing - Sydney Muchnik, PhD
Novel approaches for studying RBP-RNA interactions at isoform-level resolution - Pratibha Jagannatha
Characterization of protein isoform diversity in human umbilical vein endothelial cells (HUVECs) via long-read proteogenomics - Madison Mehlferber
Who needs more ACTB isoforms? Discover more from your single-cell Iso-Seq sample with CRISPR-Cas9 depletion - Jon Armstrong
When single-cell resolution isn’t enough: going beyond short reads with new approaches to uncover the roots of tumor heterogeneity - Antonio Fuentes-Fayos, PhD
Integrating single cell genotyping with transcriptomics to identify disease-involved brain cell types in pediatric epilepsy - Katie Miller, PhD
Single cells + single molecules = isoform biology - Jason Underwood, PhD
Read our latest Blog on full-length AAV sequencing: pacb.com/blog/hifi-sequencing-tools-to-help-transform-aav-based-gene-therapy
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48:57 - 1:14:45 "Conserving California’s biodiversity with genomics"
1:14:46 - 1:35:15 "Exploring the multiple evolutions of sex chromosomes in plants"
1:35:16 - 1:54:48 "More and better: a new era for metagenome assembly"
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In this video, we embark on an exploration of our new short-read sequencer, diving into how it works from start to finish. See the process of converting various samples – whether high molecular weight, pre-fragmented, sheared, or PCR amplicons – into compatible library structures ready for seamless sequencing and explore how Onso library conversion kits can effortlessly transform your existing libraries into an Onso-compatible format.
From library prep to clustering, the Onso short-read sequencing system’s workflow is easy-to-use. In this video, we demonstrate how our efficient design allows a single cluster generator to support multiple Onso systems, streamlining your sequencing journey.
The heart of our short-read accuracy innovation lies in the proprietary chemistry that drives near-perfect accuracy. With SBB you can wave goodbye to molecular scarring and residual linker arms and say hello to reduced phasing and stuttering errors in order to embrace a new era of precision.
The Onso system’s SBB chemistry stands out. Achieving ≥90% of bases at Q 40+, with minimal duplication rates, its remarkable ability to tackle intricate regions with ease is what sets it apart.
On top of it all, data analysis is easier than ever on the Onso system. With industry-standard FASTQ file outputs, data seamlessly integrates into existing pipelines and helps facilitate secondary analysis. Onso sequencing even delivers the ability to onboard demultiplexing, generating FASTQ files for each pooled sample.
Seize the opportunity to revolutionize you short-read sequencing journey with Onso’s SBB chemistry.
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In this presentation, Mark discusses his team's research portfolio focusing on the genomics of neglected, non-model organisms and the interpretation of those genomes in ecological and evolutionary contexts (including, inter alia, parasitic and free-living nematodes, tardigrades, gastropod and bivalve molluscs, butterflies, bees, flies, birds, algae, fungi and bacteria). Watch his full Q&A session.
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Highly accurate long reads from PacBio (HiFi reads) are well suited for haplotype-resolved assemblies of human, non-human, and cancer genomes. With the right bioinformatics tools, HiFi data enables high-quality phased genome assembly to examine structural variant landscapes, characterize cancer-related mutations, and facilitate new, unbiased studies of haplotype variation.
In this webinar, Shilpa Garg, PhD, associate professor at DTU Biosustain, discusses:
• The need for chromosome-scale phasing in reference genomes
• Efficient and accurate haplotype-resolved human genome assembly
• Generalized graph-based methods for phased assembly of cancer genomes
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In a recent preprint, Dondi et al. (2022) used transcript concatenation and highly accurate long-read sequencing (HiFi sequencing) to increase sequencing depth. This increase enabled cell type identification without needing short reads, and the detection of many new isoforms. They also detected fusions, cell-specific and cell type-specific isoform usage, and revealed differential isoform expression in tumor and mesothelial cells.
The authors conclude that “future studies with similar or increased long-read throughput will not have to rely on parallel short-read sequencing, thereby saving cost and labor.”
In this webinar Arthur Dondi discusses:
• Detection of cell type-specific known and novel isoforms
• Capture and quantification of full-length isoforms, mutations and fusions in the same scRNA-seq dataset
• Detection of a gene fusion that was misclassified in matched short-read data
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Descubrimientos científicos avanzados requieren datos de secuenciación que sean precisos y completos. Las secuencias largas y de alta precisión (secuencias HiFi) proporcionan una combinación única de ambos que permiten a los científicos producir ensamblados de genomas de alta calidad, detectar transcritos completos, identificar sitios de metilación de ADN y determinar una amplia gama de tipos de variantes genómicos.
Investigadores destacados han aplicado con éxito la tecnología de secuenciación de PacBio para resolver ensamblados de genomas completos. Además, las secuencias HiFi proporcionan un enfoque de mayor resolución para estudiar las variantes estructurales y su papel en la salud y las enfermedades humanas. Con Revio, nuestro último lanzamiento, nos permite ofrecerle un mayor rendimiento y un menor coste de secuenciación de datos de alta fidelidad, que a su vez benefician a un número cada vez mayor de áreas de investigación.
In this webinar, find out how highly accurate long reads can enable you to forge a new frontier in genomics – and how the game-changing new Revio system can make it happen. Groundbreaking discoveries demand the best data possible. The length and accuracy (99.9%) of PacBio long-read (HiFi) sequencing allows you to generate fully phased reference-quality assemblies that include methylation status and the ability to see complex variants even in dark regions – all from a single sequencing run.
Leading researchers have successfully applied PacBio HiFi sequencing to obtain fully phased de novo assemblies of even the most complex genomes. In human genomics, HiFi reads provide a high-resolution approach to study structural variants and their role in human health and disease. And with the recently launched Revio system bringing higher throughput and lower cost, HiFi data is opening a new era of genomic discovery.
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For more information on PacBio’s single-cell isoform informatics, visit https://isoseq.how
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Research use only. Not for use in diagnostic procedures. © 2022 Pacific Biosciences of California, Inc. (“PacBio”). All rights reserved. PacBio assumes no responsibility for any errors or omissions in this video. Certain notices, terms, conditions and/or use restrictions may pertain to your use of PacBio products and/or third-party products. Refer to the applicable PacBio terms and conditions of sale and to the applicable license terms at pacb.com/license.
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In addition to Edd’s talk, you will also see a presentation from guest speaker Dr. Fritz Sedlazeck from Baylor College of Medicine entitled: Closing the gap: ‘Solving complex medically relevant regions of the human genome’. Dr. Sedlazeck discusses a panel he developed in collaboration with Twist Biosciences to assess critical medically relevant genes cost-effectively at large scale with applications across multiple diseases.
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Dr. Stacey Gabriel from the Broad Institute then speaks on how Hifi sequencing is now an essential technology for increasing the completeness of genomic characterization of Biobank programs. She discusses expanding the data types that the All of Us Research Program is gathering, enabled by PacBio Hifi sequencing. Dr. Gabriel discusses the goals of adding long-reads to the All of Us data set and the strategies she is exploring to achieve the program's goals. She then announces that a pilot dataset is now available for researchers to explore and provides information on reproducible workflows for long-read processing at scale.
To conclude the workshop, Dr. Aziz Al’Khafaji from the Broad Institute presents a fascinating talk on high-throughput RNA isoform sequencing with MAS-seq. Dr. Al’Khafaji discusses RNA isoforms and alternative splicing and explores how MAS-seq enables robust single-cell RNA isoform sequencing and resolves canonical CD45 splicing patterns. He wraps up by discussing key areas of application for MAS-seq and how the Broad’s Genomics Platform has productionized MAS-seq for researchers interested in submitting cDNA samples for the sequencing and data processing of a variety of library types.
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00:00 - Introduction
00:38 - HiFi Sequencing
05:27 - HiFi Target Enrichment
08:51 - MAS-Seq
12:20 - Onso System
13:07 - SBB Performance
16:17 - Revio System
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