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Next Generation Sequencing

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NGS Platforms

  • Illumina NextSeq 2000:
    This system brings GSC the flexibility for a fast turnaround for smaller projects. With tunable output and high data quality, it provides flexibility for whole-genome, transcriptome, and targeted resequencing. NextSeq 2000 can generate up to 1.8 Billion sequencing reads (Single Reads) on a P4 flow cell. NextSeq Specifications.

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  • Illumina MiSeq: This system is focused on applications such as targeted sequencing, 16S metagenomics, small genome sequencing, targeted gene expression profiling and other amplicon sequencing. Miseq can generate up to 25 million sequencing reads (Single Reads) on a High Output flow cell and sequence 2 x 300 bp read lengths. MiSeq Specifications.

mRNA-Seq: Stranded and non-stranded,  high levels of multiplexing up to 96 or more samples on NovaSeq
     Standard amounts, Stranded-Seq: 500 ng total RNA, RIN =>8
     Low Input amounts, Stranded-Seq: 5 ng – 100 ng total RNA
     Ultra Low Input amounts, Non-Stranded-Seq: 1-1000 cells or 10 pg - 10 ng
Total RNA-Seq - Stranded: 5-250 ng
Small RNA-Seq: 1 ug, multiplexing up to 48 samples/NextSeq run
Partially degraded samples - Stranded and Non-Stranded: LCM, FFPE samples, both stranded and non-stranded, 50 -100 ng
Microbial rRNA depletion and RNA-Seq with amounts as low as 1-5 ug of total RNA

Whole Genome Sequencing
     Human / Animal / Plant
     Microbial
     As low as 1 ng
De novo Sequencing
Exome/Targeted capture re-sequencing: Enables high sequencing depths
     Agilent and Illumina platforms
     Human, Mouse, Canine and other species
Targeted re-sequencing: High levels of multiplexing up to 200 samples / MiSeq run
     PCR Amplicon sequencing 
     Illumina and Agilent platforms

ChIP-Seq
     Transcription factor analysis
     Histone modifications
DNA Methylation
     MeDIP- and MBD-Seq
     MethylC-Seq
     Agilent SureSelect MethylC-Seq
     Nucleosome Mapping
          FAIRE-Seq and DNAse I-Seq

16S amplicon sequencing
Whole Genome Metagenomic sequencing
Metatranscriptomic analysis

DNA/chromatin fragmentation by Covaris
DNA / RNA quality analysis: TapeStation assay, Qubit (Picogreen) assays
qPCR services

To submit a sample, please complete the appropriate forms and send them to our NGS representative at flsi-illuminaseq-g@vt.edu.
        mRNA- and small RNA-Seq Submission Forms:
                VT Researcher-Project and RNA Submission Form for RNA-QC
                VT Researcher-Project and RNA Submission Form for RNA-Seq
        DNA-Seq Sample Submission Forms
                VT Researcher-Project and DNA Submission Form for DNA-Seq
      Metagenomic Sample Submission Forms:
                VT Researcher-16S Sample Submission Form

Illumina lists a range of specifications and GSC tries its best to deliver within these specifications. The deliverables also depend on the type (RNA, DNA, low diversity samples etc.) and quality of samples submitted (sub optimal amounts, sample degradation, contamination, whether recommended protocols were used for sample extraction, whether libraries were customer generated etc.). These issues will be discussed before, during and after completion of the project.

RNA and DNA QC
     Includes NanoDrop, Qubit, or TapeStation
     2 days to 1 week
     GSC will send the QC data, and discuss whether the samples can move forward for library preps and sequencing
Library Preparation
     Includes library preps, QC and quantitation. Please contact the GSC for current turnaround time estimates.
Sequencing
     Please contact the GSC for current turnaround time estimates.

Due to limitations  in our storage capacity, the GSC can only maintain customer data for a period of 90 days following completion of work. Any data files older than 90 days are subject to removal from our systems in order to make room for new sequencing runs. We strongly encourage our users to download and check the integrity of their sequencing data files (e.g. md5sums) as soon as possible, and to utilize appropriate long-term storage and curation resources for their research data. Please visit here for more information on current Virginia Tech guidelines and best practices with regards to Data Management.