Data from: INSTRAL: discordance-aware phylogenetic placement using quartet scores

Phylogenomic analyses have increasingly adopted species tree
reconstruction using methods that account for gene tree discordance using
pipelines that require both human effort and computational resources. As
the number of available genomes continues to increase, a new problem is
facing researchers. Once more species become available, they have to
repeat the whole process from the beginning because updating species trees
is currently not possible. However, the de novo inference can be
prohibitively costly in human effort or machine time. In this paper, we
introduce INSTRAL, a method that extends ASTRAL to enable phylogenetic
placement. INSTRAL is designed to place a new species on an existing
species tree after sequences from the new species have already been added
to gene trees; thus, INSTRAL is complementary to existing placement
methods that update gene trees.