MA Plot Generator

Generate MA plots from DESeq2 or edgeR analysis results

Upload DESeq2 or edgeR result table

Help

MA Plot

Function

An MA Plot displays mean expression values versus log2 fold changes. It helps detect expression-dependent biases and identify strongly differentially expressed genes.

Input Format

  • Differential Expression Results File
  • Mean Expression Column
  • log2 Fold Change Column
  • Adjusted P-value Column

Output Format

  • Scatter Plot
  • Significant Genes Highlighted
  • Reference Lines
  • Trend Line (optional)

Applications

  • Quality Control
  • Expression Bias Detection
  • Method Comparison
  • Publication Figures

Example Usage


library(DESeq2)

plotMA(
res,
ylim=c(-5,5),
main="MA Plot"
)

Suggested Reading

Citation

Dudoit S, Yang YH, Callow MJ, Speed TP (2002).
Statistical methods for identifying differentially expressed genes in replicated cDNA microarray experiments.