ref:https://www.ggplot2-exts.org/ggtree.html ggtree https://bioconductor.org/packages/release/bioc/html/ggtree.html gtree is designed for visualizing phylogenetic tree and different types of associated annotation data.

1. Prepared by Volkan OBAN
ggtree in R
Reference: https://www.ggplot2-exts.org/ggtree.html
>library("ggtree")
>data(chiroptera)
> groupInfo <- split(chiroptera$tip.label,gsub("_w+", "", chiroptera$tip.label))
> chiroptera <- groupOTU(chiroptera, groupInfo) > ggtree(chiroptera, aes(color=group),
layout='circular') +geom_tiplab(size=1, aes(angle=angle))

2. Example:
> library(ggplot2)
> library(ape)
> library(ggtree)
> file <- system.file("extdata/BEAST", "beast_mcc.tree", package="ggtree")
> beast <- read.beast(file)
> ggtree(beast, ndigits=2, branch.length = 'none') + geom_text(aes(x=branch
, label=length_0.95_HPD), vjust=-.5, color='firebrick')

3. Example:
ibrary("ggtree")
> nwk <- system.file("extdata", "sample.nwk", package="ggtree")
> tree <- read.tree(nwk)
> ggplot(tree, aes(x, y)) + geom_tree() + theme_tree()

4. Example:
> library(ggplot2)
> library(ape)
> library(ggtree)
nwk <- system.file("extdata", "sample.nwk", package="ggtree")
tree <- read.tree(nwk)
ggtree(tree) + geom_text2(aes(subset=!isTip, label=node), hjust=-.3) + geom
_tiplab()