Non-orthologous gene displacement.

By Eugene V. Koonin, Arcady R. Mushegian, Peer Bork. 1996

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Citations in the corpus

Comparative genomics, minimal gene-sets and the last universal common ancestor (2003, background): “For a substantial number of essential functions, different organisms use genes that are not orthologues and, in some cases, are not even homologue”
The iPlant Collaborative: Cyberinfrastructure for Plant Biology (2011, background): “Only a small percentage of plant genes have laboratory or field-based evidence for their functions, and multigene families, non-orthologous gene displacement (Koonin et al., 1996), lateral gene transfer, and several other natural biological processes make functional assignments more difficult.”
Orthologs, Paralogs, and Evolutionary Genomics 1 (2005, background): “, recruitment of non-orthologous genes for the equivalent, essential functions in different organisms (47, 52).”
The phagotrophic origin of eukaryotes and phylogenetic classification of Protozoa. (2002, background): “Such trivial gene replacement (Koonin et al., 1996) is sometimes said to be unexpected (Doolittle, 1998a), but was predicted on general evolutionary grounds (Cavalier-Smith, 1990a) before evidence for it became widespread.”
Genomics of bacteria and archaea: the emerging dynamic view of the prokaryotic world (2008, background): “recruitment of unrelated genes (or distantly related, nonorthologous genes) for the same function (63).”
Protein Complexes in Bacteria (2015, background): “This suggests that many functions can be replaced by non-homologous displacement [20] and that genomes are more malleable in evolutionary terms than previously expected.”