GO分类条形图

R 绘图脚本

rm(list = ls())
library(ggplot2)
windowsFonts(myFont = windowsFont("Times New Roman"))
setwd("D:\\data\\kegg_go_class")
data <- read.table("test.DESeq2.goClass.xls.counts",sep='\t',header = T)
pdf(file="test.DESeq2.goClass.pdf",width=10,height=10)
dorder = factor(as.integer(rownames(data)),labels=data$GO_term) #对数据按GO_term排序
ggplot(data,aes(x=GO_term,y=Number_of_Genes,fill=GO_category))  +   #定义X轴，Y轴的数据和颜色填充
  geom_bar(stat="identity",position=position_dodge(0.7),width=0.8,aes(x=dorder))  + #定义柱形图的宽度和间距
  coord_flip() +  #转换横纵坐标
  ylim(0,600) +
  scale_fill_discrete(name="GO category") + #修改legend的tittle
  theme_bw() +
  theme(panel.grid =element_blank(),axis.text=element_text(size = 10,face = "bold")) + 
  geom_text(mapping = aes(label = Number_of_Genes),size = 4,hjust = -0.5) +
  ylab("Number of genes")  +#修改X轴标签
  xlab("")
dev.off()

绘图结果

测试数据

GO_term	GO_category	Number_of_Genes
Aging	Organismal Systems	42
Excretory system	Organismal Systems	46
Environmental adaptation	Organismal Systems	72
Sensory system	Organismal Systems	78
Circulatory system	Organismal Systems	80
Digestive system	Organismal Systems	93
Development	Organismal Systems	108
Endocrine system	Organismal Systems	207
Immune system	Organismal Systems	225
Nervous system	Organismal Systems	246
Biosynthesis of other secondary metabolites	Metabolism	6
Xenobiotics biodegradation and metabolism	Metabolism	14
Metabolism of terpenoids and polyketides	Metabolism	19
Metabolism of cofactors and vitamins	Metabolism	23
Energy metabolism	Metabolism	27
Metabolism of other amino acids	Metabolism	28
Overview	Metabolism	34
Nucleotide metabolism	Metabolism	37
Glycan biosynthesis and metabolism	Metabolism	40
Amino acid metabolism	Metabolism	52
Carbohydrate metabolism	Metabolism	56
Lipid metabolism	Metabolism	78
Transcription	Genetic Information Processing	7
Replication and repair	Genetic Information Processing	9
Translation	Genetic Information Processing	25
Folding, sorting and degradation	Genetic Information Processing	55
Membrane transport	Environmental Information Processing	9
Signaling molecules and interaction	Environmental Information Processing	229
Signal transduction	Environmental Information Processing	517
Cellular community - prokaryotes	Cellular Processes	6
Cell motility	Cellular Processes	47
Cell growth and death	Cellular Processes	146
Cellular community - eukaryotes	Cellular Processes	158
Transport and catabolism	Cellular Processes	163