Genomic analysis finds no evidence of canonical eukaryotic DNA processing complexes in a free-living protist

Dayana Salas-Leiva, Eelco Tromer, Bruce Curtis, Jon Jerlström-Hultqvist, Martin Kolisko, Zhenzhen Yi, Joan Salas-Leiva, Lucie Gallot-Lavallée, Shelby Williams, Geert Kops, John Archibald, Alastair Simpson & Andrew Roger
Cells replicate and segregate their DNA with precision. Previous studies showed that these regulated cell-cycle processes were present in the last eukaryotic common ancestor and that their core molecular parts are conserved across eukaryotes. However, some metamonad parasites have secondarily lost components of the DNA processing and segregation apparatuses. To clarify the evolutionary history of these systems in these unusual eukaryotes, we generated a genome assembly for the free-living metamonad Carpediemonas membranifera and carried out...
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