- get the _ncbi taxonomic id_ (from ensembl for example)
- create a phylogenetic tree from a tree creating algorithm
- on R write:
```R
treeText <- readLines(tree.phy)
treeText <- paste0(treeText, collapse="")
library(treeio)
tree <- read.tree(text = treeText) ## load tree
distMat <- cophenetic(tree) ## generate dist matrix
```