In PNAS this week, scientists performed phylogenomic analysis of a dataset of 143 proteins and 48 taxa, including 19 excavates, to better distinguish between the known six suprakingdom-level groups of eukaryotes, specifically the group Excavata. Their findings say that Excavata is a monophyletic suprakingdom-level group that is one of the three primary divisions within eukaryotes, along with unikonts and a megagroup of Archaeplastida, Rhizaria, and the chromalveolate lineages.

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