Gets the most recent common ancestor (MRCA) of two nodes.

Computes the most recent common ancestor of two nodes, given their timelines from TimeTree.

Usage

getMRCA(taxid1, taxid2, timelines)

Arguments

taxid1

An integer: The NCBI id of one taxon

taxid2

An integer: The NCBI id of the other taxon

timelines

A named list mapping each node to its timeline from TimeTree. Each timeline contains all ancestors of the node up to the root of the Tree of Life. A timeline is represented as a dataframe with one row per ancestor.

Value

The row in the dataframe corresponding to the most recent common ancestor of the two given nodes.

Author

Priscila Biller