This webinar, presented by Nisha Pillai, provides an overview of amplicon sequencing to target specific regions of a genome using PacBio Single Molecule, Real-Time (SMRT) Sequencing. This session provides an overview of bioinformatics approaches for PacBio amplicon analysis including circular consensus sequencing and long amplicon analysis.
In this AGBT presentation from AGBT 2019, Jason Underwood, shares information about single-cell isoform sequencing (scIso-Seq), focusing on a collaborative project with the labs of Evan Eichler and Alex Pollen. For this effort, scientists used Drop-seq sample prep and then loaded cDNA products onto the Sequel System. Results from a barnyard experiment using mouse and human cells as well as from cerebral organoids demonstrated that this approach could deliver cell type-specific gene expression data. Underwood also presents data from the Sequel II System comparing chimp and human organoids, resulting in information about 14,000 unique genes with important insights for post-transcriptional…
In this ASHG workshop presentation, Elizabeth Tseng of PacBio showed how the Iso-Seq method can be used to discover disease-associated alternative splicing. Because this approach to isoform sequencing yields accurate, full-length transcripts requiring no assembly, it’s ideal for disease studies that need a more comprehensive picture of alternative splicing activity. Tseng offered several published examples of how the Iso-Seq method has been used for everything from single-gene studies to whole-transcriptome studies, and also detailed how the latest Sequel System chemistry recovers more genes and produces more usable reads.
This tutorial provides an overview of the Isoform Sequence (Iso-Seq) analysis application. The Iso-Seq application provides reads that span entire transcript isoforms, from the 5′ end to the 3′ poly A-tail. Generation of accurate, full-length transcript sequences greatly simplifies analysis by eliminating the need for transcript reconstruction to infer isoforms using error-prone assembly of short RNA-seq reads. This tutorial covers features of SMRT Link v6.0.0.
In this presentation, Justin Blethrow provides an overview of recent and upcoming developments across PacBio’s SMRT Sequencing product portfolio, and their implications for PacBio’s major applications. In presenting the product roadmap, he illustrates how key new products coming in 2019 will make SMRT Sequencing dramatically more affordable and easy to use, and how they will enable customers to routinely produce highly accurate, single-molecule long reads.
In this presentation, Elizabeth Tseng explains how PacBio’s full-length RNA Sequencing using the Iso-Seq method can characterize full-length transcripts without the need for computational transcript assembly. The Iso-Seq method is fully supported bioinformatically through PacBio’s SMRT Analysis software that outputs high-quality, full-length transcript sequences that can be used for genome annotation and novel gene discovery. Elizabeth shows that the highly accurate reads can be used to discover allelic-specific isoform expressions in transcriptome data.
In this PacBio User Group Meeting presentation, Nic Wheeler of University of Wisconsin-Madison, speaks about RNA sequencing for filarial nematodes associated with understudied tropical diseases. His team used Iso-Seq analysis to improve gene models and achieve better transcriptome coverage for these worms, which typically have poorly annotated and fragmented genome assemblies. While getting enough RNA to study is a technical challenge, the group still managed to generate full-length isoforms, many of which were novel or contained novel junctions.
In this PacBio User Group Meeting presentation, Ana Conesa Cegarra from the University of Florida spoke about Iso-Seq analysis tools developed by her group, which created the popular SQANTI tools for Iso-Seq data QC. They’re also working on IsoAnnot to perform functional annotation at isoform resolution; validation has already been done on various species. Currently it’s a set of scripts, but her team is working to produce a more user-friendly version. Finally, tappAS is for functional diversity analysis and for prioritizing genes for validation.
In this webinar, Sarah Kingan, Staff Scientist, PacBio, and Kevin McKernan, Founder and Chief Science Officer, Medicinal Genomics, describe their work assembling the most comprehensive and complete cannabis genome of a Type II (THCA and CBDA producing) plant. They also share the latest advances in cannabis genomics, including how PacBio long-read sequencing enables high-quality genomics research in plants, annotation of the cannabis reference genome using full-length transcript sequencing, and new insights into cannabinoid synthesis across different types of cannabis plants.
In this PacBio User Group Meeting presentation, PacBio scientist Kristin Mars speaks about recent updates, such as the single-day library prep that’s now possible with the Iso-Seq Express workflow. She also notes that one SMRT Cell 8M is sufficient for most Iso-Seq experiments for whole transcriptome sequencing at an affordable price.
In this webinar we present Single Molecule, Real-Time (SMRT) Sequencing and the Iso-Seq method, which allow you to generate full-length cDNA sequences — no assembly required — to characterize transcript isoforms within targeted genes or across an entire transcriptome. The presenters share how the Iso-Seq method: (1) Provides high quality, full-length transcript sequences of up to 15 kb; (2) Allows for one-day library prep on a single SMRT Cell 8M to comprehensively characterize a whole transcriptome; (3) Facilitates discovery of alternative splicing events, fusion gene detection, and allelic specific isoform detection; and (4) Enables discovery of potential cancer-specific isoforms in…
During a PAG 2020 workshop, Zev Kronenberg, a senior bioinformatics engineer at PacBio, describes how he used the PacBio Iso-Seq transcriptome sequencing and analysis method to annotate great ape genomes, detangle several complicated loci, and enrich our biological understanding of the differences between apes and humans.
The utility of new highly accurate long reads, or HiFi reads, was first demonstrated for calling all variant types in human genomes. It has since been shown that HiFi reads can be used to generate contiguous, complete, and accurate human genomes, even in repeat structures such as centromeres and telomeres. In this virtual workshop scientists from PacBio as well as Tina Graves-Lindsay from the McDonnell Genome Institute at Washington University share the many improvements we’ve made to HiFi sequencing in the past year, tools that take advantage of HiFi data for variant detection and assembly, and examples in numerous genomics…
In this Labroots webinar, Meredith Ashby, Director of Microbial Genomics at PacBio, describes the utility of highly accurate long-read sequencing, known as HiFi sequencing, to understand the SARs-CoV-2 viral genome. HiFi sequencing enables mutation phasing and rare variant detection to understand viral stability and mutation rates, as well as providing insights into viral population structure for monitoring viral evolution. Ashby also shares how HiFi sequencing can be used to explore the host immune response to COVID-19, specifically by providing full-length sequencing of the B cell repertoire, IGH locus and HLA genes. Access additional COVID-19 Sequencing Tools and Resources.
Long-read mRNA sequencing such as PacBio’s Iso-Seq method offer high-throughput transcriptome profiling that circumvents the transcript assembly problem by sequencing full-length cDNA. The Iso-Seq method has emerged as the most reliable technology for fully characterizing isoforms and, in turn, help shed light on underlying disease mechanisms. Here, we have utilized the Iso-Seq method to sequence an Alzheimer’s disease whole brain sample. This is a devastating neurodegenerative disease that affects ~44 million people worldwide, making it the most common form of dementia. Studies looking into disease mechanism have shown that changes in gene expression due to alternative splicing likely contribute to the…