The genome of the Amazon molly (Poecilia formosa), a parthenogenetic fish species, shows little genetic decay and a high degree of diversity. The genetic health of this asexual vertebrate is surprising given the accumulation of genomic damage that is expected to follow from asexual reproduction.
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Samani, P., Reuter, M. Genomic health in an asexual fish. Nat Ecol Evol 2, 595–596 (2018). https://doi.org/10.1038/s41559-018-0485-7