Complementation, genetic conflict, and the evolution of sex and recombination.
The existence of sexual reproduction is difficult to explain because the 2-fold cost of meiosis requires a compensatory 2-fold advantage that is difficult to prove. Here, I show that asexual reproduction has a short-term disadvantage due to the loss of complementation of recessive deleterious mutations, which can overcome the 2-fold cost of meiosis in one or few generations. This complementation hypothesis can also explain why most asexual species are polyploid, why only certain types of asex...Expand abstract
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