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Figure3.r
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Figure3.r
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#### Figure 3 , PCA and indicator species analysis
#### NM 8 avril 2019
if(!require(mvpart)){
library(devtools)
install_github("cran/mvpart", force = TRUE)}
if(!require(lme4)){install.packages("lme4")}
require(lme4)
if(!require(readxl)){install.packages("readxl")}
require(readxl)
if(!require(vegan)){install.packages("vegan")} ##rda and decostand
require(vegan)
if(!require(labdsv)){install.packages("labdsv")} ##indval
require(labdsv)
if(!require( ggplotify)){install.packages("ggplotify")}
require( ggplotify)
require(effects)
require(sjPlot)
##for figure 3
if(!require(gridExtra)){install.packages("gridExtra")}
require(gridExtra)
if(!require( ggpubr )) {install.packages("ggpubr")}
require( ggpubr )
if(!require( grid )) {install.packages("grid")}
require( grid )
if(!require( ggplot2 )) {install.packages("ggplot2")}
require( ggplot2 )
if(!require( lattice )) {install.packages("lattice")}
require( lattice )
#### genus-level community composition
data.genus=read_excel("~/Genus&NbSample_perempo.xlsx", col_names = TRUE)
data.genus=as.data.frame(data.genus)
row.names(data.genus)=data.genus[,1]
data.genus=data.genus[,-1]
mat_genus=data.genus[,-1]
mat_genus.1=t(mat_genus)
mat_genus.hel=decostand(mat_genus.1,"hel")
groupes=array(dim=17)
names(groupes)=rownames(mat_genus.1)
groupes[which(names(groupes) %in% c('AnimaldistalGut','Animalsurface','Animalsecretion','AnimalCorpus','Plantcorpus','Animalproximalgut','AerosolNonSaline'))]=1
groupes[which(names(groupes) %in% c('SoilNonSalin','WaterNonSalin','SedimentNonSalin','SurfaceNonSalin','Plantrhizosphere'))]=2
groupes[which(names(groupes) %in% c('SurfaceSalin','WaterSalin','Sedimentsaline','Hypersaline','Plantsurface'))]=3
iva = indval(mat_genus.hel, groupes, numitr=10000)
gr <- iva$maxcls[iva$pval<=0.05]
iv <- iva$indcls[iva$pval<=0.05]
pv <- iva$pval[iva$pval<=0.05]
fr <- apply(mat_genus.hel > 0, 2, sum)[iva$pval<=0.05]
####
fidg <- data.frame(
group = gr,
indval = iv,
pvalue = pv,
freq = fr
)
fidg <- fidg[order(fidg$group, -fidg$indval), ]
fidg2=fidg
fidg2$group[fidg2$group==1]="Animal"
fidg2$group[fidg2$group==2]="Non-Saline"
fidg2$group[fidg2$group==3]="Saline"
write.xlsx(fidg2,file="indval_dfs1.xlsx")
#### corriger les noms de genera modifiés par indval
#### indval changed the genera names with dot, brackets and space
#### we need to give back the actual genera names
vrai_nom=read_excel("~/indval_name.xlsx",col_names = TRUE)
for(i in 1:dim(fidg2)[1])
if (rownames(fidg2)[i] %in% vrai_nom$name_indval)
rownames(fidg2)[i] = vrai_nom$vrai_name[vrai_nom$name_indval==rownames(fidg2)[i]]
write.xlsx(fidg2,file="indval_dfs_vrainoms.xlsx")
#############
g1=fidg2[which(fidg2$group == "Animal"),]
g2=fidg2[which(fidg2$group =="Non-Saline"),]
g3=fidg2[which(fidg2$group == "Saline"),]
g1$genus_name=rownames(g1)
g2$genus_name=rownames(g2)
g3$genus_name=rownames(g3)
write.xlsx(g1,file="anim.xlsx")
write.xlsx(g2,file="nonsaline.xlsx")
write.xlsx(g3,file="saline.xlsx")
####heatmap with to 25 indicators for every group
indvalsummary1=rbind(g1[1:25,],g2[1:25,],g3[1:25,])
p <- ggplot(indvalsummary1, aes(group, genus_name)) + geom_tile(aes(fill = indval),
colour = "cadetblue1") + scale_fill_gradient(low = "cadetblue1",
high = "blue4")+xlab("")+ylab("")+
theme(axis.text.y = element_text(size=9.5),axis.text.x = element_text(size=12,face="bold"))
p
ggsave("indval_heatmap3.pdf",height = 10)
#### PCA for visualisation
rda.out=vegan::rda(mat_genus.hel)
rda.genus=rda.out
sc.rda=scores(rda.genus,scaling=1)
ssc=sc.rda$species
class(ssc)
rownames(ssc)
df.ssc=as.data.frame(ssc)
head(ssc)
dim(ssc)
write.xlsx(df.ssc,file="df.ssc.xlsx")
df.ssc$row_name=rownames(df.ssc)
head(df.ssc)
dim(df.ssc)
df.Animal=as.data.frame(df.ssc[which(rownames(ssc) %in% g1$genus_name),])
df.salin=as.data.frame(ssc[which(rownames(ssc) %in% rownames(g3)),])
df.nonsalin=as.data.frame(ssc[which(rownames(ssc) %in% rownames(g2)),])
write.csv(g1, "animal_genera.csv")
write.csv(g3, "salin_genera.csv")
write.csv(g2, "nonsalin_genera.csv")
########pca plot
p3 = as.ggplot( function () {
plot(rda.genus, scaling=1, type="none",
xlab="", ylab="",cex.lab=1.2,font.lab=1)
title(xlab="PC1 (28.91%)",ylab="PC2 (20.52%)",line=2.5,cex.lab=1,font.lab=2)
points(scores(rda.genus, display="sites", choices=c(1,2), scaling=1),
pch=2, col="black",cex=1,lwd=1)
points(ssc[,1],ssc[,2],col="grey",cex=0.9,lwd=2)
points(df.Animal$PC1,df.Animal$PC2,col="orange",cex=0.9,lwd=2)
points(df.salin$PC1,df.salin$PC2,col="blue",cex=0.9,lwd=2)
points(df.nonsalin$PC1,df.nonsalin$PC2,col="purple",cex=0.9,lwd=2)
text(scores(rda.genus, display="sites", choices=c(1), scaling=1),
scores(rda.genus, display="sites", choices=c(2), scaling=1),
labels=rownames(scores(rda.genus, display="sites", scaling=1)),
col="black", cex=0.7,font=1,offset =0.5,pos=2)
})
save(p3,file=("pca_plot.RData"))
####plot figure 3-B
#####6 fev
### import GLMM results for animal group
load("~/glmm_animal3.RData")
load("~/datsc_animal.RData")
datsc1=datsc_animal
eff=allEffects(glmer.full.3)
#### import GLMM results for non saline group
load("~/datsc_nonsalin.RData")
load("~/glmm_nonsaline3.RData")
datsc1=datsc_nonsalin
eff1=allEffects(glmer.full.status.3)
summary(glmer.full.status.3)
## import GLMM results for saline group
load("~/datsc_saline.RData")
load("~/glmer.full.status.Sal.signif.RData")
datsc1=datsc_saline
eff2=allEffects(glmer.full.status.Sal.2)
set_theme(
base = theme_classic(),
title.size=1.2,
legend.title.face = "italic", # title font face
legend.inside = TRUE, # legend inside plot
legend.color = "grey50", # legend label color
legend.pos = "top left", # legend position inside plot
axis.title.size = 1.2,
axis.title.color = "black",
axis.textsize = 1,
legend.size = .7,
legend.title.size = .8,
geom.label.size = 3
)
plot1=plot_model(glmer.full.3,type="int",terms=c("nb_genus","status"),title="Animal",show.legend = TRUE, axis.title=c("","ASV number/genus"),colors = c("black","red"))
plot2=plot_model(glmer.full.status.3,type="int",terms=c("nb_genus","status"),title="Non saline",show.legend = FALSE,axis.title=c("Std Genus number",""),colors = c("black","red"))
plot3=plot_model(glmer.full.status.Sal.2,type="int",terms=c("nb_genus","status"),title="Saline",show.legend = FALSE,axis.title=c("",""),colors = c("black","red"))
save(plot1,file="plot1.RData")
save(plot2,file="plot2.RData")
save(plot3,file="plot3.RData")
plot4=textGrob("")
plot5=textGrob("")
lay <- rbind(c(1,1,1,5),
c(1,1,1,6),
c(1,1,1,5),
c(1,1,1,5),
c(2,3,4,5),
c(2,3,4,5))
pdf("figure3.pdf")
grid.arrange(p3,plot1, plot2, plot3,plot4,plot5, layout_matrix = lay)
dev.off()