Nucleomorph phylogenomics suggests a deep and ancient origin of cryptophyte plastids within Rhodophyta.

If the Cryptophyte + Cyanidiophytina topology was a result of these phylogenetic artifacts, the progressive removal of divergent data (individual positions or marker genes) from the alignment would likely result in a clear trend of lowering statistical support and, possibly, toward an alternative topology (see Fig. 2 ).

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