Article
No evidence for accumulation of deleterious mutations and fitness degradation in clonal fish hybrids: Abandoning sex without regrets.
Molecular ecology - 1 Aug 2020
Kočí Jan, Röslein Jan, Pačes Jan, Kotusz Jan, Halačka Karel, Koščo Ján, Fedorčák Jakub, Iakovenko Nataliia, Janko Karel
Abstract excerpt
Despite its inherent costs, sexual reproduction is ubiquitous in nature, and the mechanisms to protect it from a competitive displacement by asexuality remain unclear. Popular mutation-based explanations, like the Muller's ratchet and the Kondrashov's hatchet, assume that purifying selection may not halt the accumulation of deleterious mutations in the nonrecombining genomes, ultimately leading to their...
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