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Interactive Course

RNA-Seq Differential Expression Analysis

Use RNA-Seq differential expression analysis to identify genes likely to be important for different diseases or conditions.

  • 4 hours
  • 16 Videos
  • 44 Exercises
  • 2,009 Participants
  • 3,150 XP

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Course Description

RNA-Seq is an exciting next-generation sequencing method used for identifying genes and pathways underlying particular diseases or conditions. As high-throughput sequencing becomes more affordable and accessible to a wider community of researchers, the knowledge to analyze this data is becoming an increasingly valuable skill. Join us in learning about the RNA-Seq workflow and discovering how to identify which genes and biological processes may be important for your condition of interest! We will start the course with a brief overview of the RNA-Seq workflow with an emphasis on differential expression (DE) analysis. Starting with the counts for each gene, the course will cover how to prepare data for DE analysis, assess the quality of the count data, and identify outliers and detect major sources of variation in the data. The DESeq2 R package will be used to model the count data using a negative binomial model and test for differentially expressed genes. Visualization of the results with heatmaps and volcano plots will be performed and the significant differentially expressed genes will be identified and saved.

  1. 1

    Introduction to RNA-Seq theory and workflow

    Free

    In this chapter we explore what we can do with RNA-Seq data and why it is exciting. We learn about the different steps and considerations involved in an RNA-Seq workflow.

  2. Exploratory data analysis

    In this chapter, we perform quality control on the RNA-Seq count data using heatmaps and principal component analysis. We explore the similarity of the samples to each other and determine whether there are any sample outliers.

  3. Differential expression analysis with DESeq2

    In this chapter, we execute the differential expression analysis, generate results and identify the differentially expressed genes.

  4. Exploration of differential expression results

    In this final chapter we explore the differential expression results using visualizations, such as heatmaps and volcano plots. We also review the steps in the analysis and summarize the differential expression workflow with DESeq2.

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Mary Piper
Mary Piper

Bioinformatics Consultant and Trainer

Mary Piper serves dual roles as research analyst and bioinformatics trainer in the Department of Biostatistics at the Harvard T.H. Chan School of Public Health. However, her primary role is the development and instruction of bioinformatics workshops focused on the analysis of next-generation sequencing data. She has a PhD in cellular and molecular biology from the University of Michigan and a background in science education. Her passion for bioinformatics research and teaching led to her desire to pursue bioinformatics as a career and to share that knowledge with the community.

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Collaborators
  • Richie Cotton

    Richie Cotton

  • David Campos

    David Campos

  • Shon Inouye

    Shon Inouye

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