Is it possible to plot a radiation tree with ggtree? how?

Question

[Hongru]

Is it possible to plot a radiation tree (example below) with ggtree? If so, how? If not possible, are there any other R packages that can automate radiation tree making?

Answer 1

[Joseph Hughes]

Use the unrooted tree option:

ggtree(tree, layout="unrooted")

The information you are looking for can easily be found with google search: https://bioconductor.org/packages/devel/bioc/vignettes/ggtree/inst/doc/treeVisualization.html#unrooted

Answer 2

[Jake Warner]

Non-ggtree answer: You can use APE (analysis of phylogenetics and evolution) to plot an un-rooted tree:

library("ape")
plot(as.phylo(hc), type = "unrooted", cex = 0.6,
 no.margin = TRUE)