Single Molecule, Real-Time (SMRT) Sequencing offers affordable characterization of complete microbial genomes and populations. With this technology, scientists have the ability to simultaneously detail base modifications and mobile elements, quantify low-level variants, and achieve strain-level resolution within communities.
In order to understand the molecular mechanisms governing the outcomes of disease, health and survival, immunologists have to characterize exceptionally complex genomic regions, like major histocompatibility complex (MHC), killer cell immune receptors (KIR), and the B and T-cell immune repertoire. Single Molecule, Real-Time (SMRT) Sequencing delivers the long read lengths, uniform coverage and high accuracy necessary to comprehensively and confidently resolve these immune sub-genomic regions. The granularity of data generated by PacBio® reads provides new access to imputation-free characterization of genes and haplotypes for invaluable genomic insights to advance disease association and evolutionary research.
Scientists are utilizing long-read PacBio sequencing to provide uniquely comprehensive views of complex plant and animal genomes. These efforts are uncovering novel biological mechanisms, enabling progress in crop development, and much more. To date, scientists have published over 1000 papers with Single Molecule, Real-Time (SMRT) Sequencing, many covering breakthroughs in the plant and animal sciences. In this case study, we look at examples in model organisms Drosophila and C. elegans and non-model organisms coffee, Oropeitum, danshen, and sugarbeet, where SMRT Sequencing has contributed to a more accurate understanding of biology. These efforts underscore the broad applicability of long-read sequencing in…
Single Molecule, Real-Time (SMRT®) Sequencing combines long reads with uniform coverage to provide uniquely comprehensive views of plant and animal genomes and transcriptomes. High-quality genome assemblies and evidence-based annotations promote improved genetic marker development, discovery of novel genes, and structural variation characterization.
To understand the genetic factors underlying health and disease and to address hidden heritability, scientists require a more comprehensive view of all the variations in the human genome. Single Molecule, Real-Time (SMRT) Sequencing delivers the read lengths, uniform coverage, and accuracy needed for accessing the complete size spectrum of sequence variant types — from single nucleotides to complex structural variants. PacBio’s long single-molecule reads also provide direct variant phasing information across full-length genes and chromosome haplotype blocks. With SMRT Sequencing, scientists gain new insight into the genetic basis of health and disease.
Structural variation accounts for much of the variation among human genomes. Structural variants of all types are known to cause Mendelian disease and contribute to complex disease. Learn how long-read sequencing is enabling detection of the full spectrum of structural variants to advance the study of human disease, evolution and genetic diversity.
Obtaining microbial genomes with the highest accuracy and contiguity is extremely important when exploring the functional impact of genetic and epigenetic variants on a genome-wide scale. A comprehensive view of the bacterial genome, including genes, regulatory regions, IS elements, phage integration sites, and base modifications is vital to understanding key traits such as antibiotic resistance, virulence, and metabolism. SMRT Sequencing provides complete genomes, often assembled into a single contig. Our streamlined microbial multiplexing procedure for the Sequel System, from library preparation to genome assembly, can be completed with less than 8 hours bench time. Starting with high-quality genomic DNA (gDNA),…
Our understanding of microbiology has evolved enormously over the last 150 years. Few institutions have witnessed our collective progress more closely than the National Collection of Type Cultures (NCTC). In fact, the collection itself is a record of the many milestones microbiologists have crossed, building on the discoveries of those who came before. To date, 60% of NCTC’s historic collection now has a closed, finished reference genome, thanks to PacBio Single Molecule, Real- Time (SMRT) Sequencing. We are excited to be their partner in crossing this latest milestone on their quest to improve human and animal health by understanding the…
The UK’s National Collection of Type Cultures (NCTC) is a unique collection of more than 5,000 expertly preserved and authenticated bacterial cultures, many of historical significance. Founded in 1920, NCTC is the longest established collection of its type anywhere in the world, with a history of its own that has reflected — and contributed to — the evolution of microbiology for more than 100 years.
With Single Molecule, Real-Time (SMRT) Sequencing and the Sequel Systems, you can affordably assemble reference-quality microbial genomes that are >99.999% (Q50) accurate.
The study of genomics has revolutionized our understanding of science, but the field of transcriptomics grew with the need to explore the functional impacts of genetic variation. While different tissues in an organism may share the same genomic DNA, they can differ greatly in what regions are transcribed into RNA and in their patterns of RNA processing. By reviewing the history of transcriptomics, we can see the advantages of RNA sequencing using a full-length transcript approach become clearer.
During the past decade, the search for pathogenic mutations in rare human genetic diseases has involved huge efforts to sequence coding regions, or the entire genome, using massively parallel short-read sequencers. However, the approximate current diagnostic rate is
The sequence and assembly of human genomes using long-read sequencing technologies has revolutionized our understanding of structural variation and genome organization. We compared the accuracy, continuity, and gene annotation of genome assemblies generated from either high-fidelity (HiFi) or continuous long-read (CLR) datasets from the same complete hydatidiform mole human genome. We find that the HiFi sequence data assemble an additional 10% of duplicated regions and more accurately represent the structure of tandem repeats, as validated with orthogonal analyses. As a result, an additional 5 Mbp of pericentromeric sequences are recovered in the HiFi assembly, resulting in a 2.5-fold increase in…
Xanthomonas campestris pv. campestris (Xcc) is an important bacterial pathogen that causes black rot and brings about enormous production loss for cruciferous vegetables worldwide. Currently, genome sequences for only a few Xcc isolates are available, most of which are draft ones. Based on the next-generation sequencing (NGS) and single-molecule sequencing in real time (SMRT) technologies, we present here the complete genome sequence of strain WHRI 3811, race 1 of Xcc, which is a type strain that has been extensively used. The genome data will contribute to our understanding of Xcc genomic features, and pave the way for research on Xcc-host…
Background Assemblies of diploid genomes are generally unphased, pseudo-haploid representations that do not correctly reconstruct the two parental haplotypes present in the individual sequenced. Instead, the assembly alternates between parental haplotypes and may contain duplications in regions where the parental haplotypes are sufficiently different. Trio binning is an approach to genome assembly that uses short reads from both parents to classify long reads from the offspring according to maternal or paternal haplotype origin, and is thus helped rather than impeded by heterozygosity. Using this approach, it is possible to derive two assemblies from an individual, accurately representing both parental contributions…