PARALLEL IN EUKARYOTES. “The similarity to the pattern seen in some multi-cellular eukaryotes, such as aphids, that alternate between parthenogenetic and sexual reproduction is suggestive: both reproduce asexually in benign conditions, switching to a genetic-diversity-generating mechanism when conditions are harsh.”
https://standardsingenomics.biomedcentral.com/articles/10.1186/s40793-016-0180-8