Figure 2: Gain in phylogenetic diversity according to specimen type.
From: Marine mammals harbor unique microbiotas shaped by and yet distinct from the sea
Phylogenetic diversity (PD) gain refers to the cumulative branch length in a phylogenetic tree that is exclusive to a particular specimen, as samples are added in a user-defined order. Calculations were done on the PS data set. Two different orders are shown. In a, the dolphin oral specimens were added first, followed by dolphin gastric, rectal and respiratory samples, sea lion specimens, fish and squid, and seawater samples. Panel b shows the animal samples in reversed order. Only one time point per animal was included. Of the marine mammal specimens, the dolphin oral specimens show the most phylogenetic gain, even when the sea lion specimens are considered first.
