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Mixed reproduction in Eucypris virens (Crustacea, Ostracoda) and resulting persistence of asexuality are discussed. It is argued that data can only provide a lower limit on the number of origins of asexual reproduction and an upper limit on age of asexual lineages. Congruence between gene trees for different loci can give support for inferring long-term apomictic reproduction. conclusions from nuclear and mitochondrial data differ. genetic exchange would seem to have occurred between sexual and asexual lineages, which could combine benefits of both modes and explain how asexuality persisted in long evolutionary terms.