Journal of Ethology

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Evolution of sexual reproduction
28 Feb 2023
Two novel hypotheses address the “two-fold cost of sex”: one of the biggest enigmas in the evolution of sexual reproduction.
Each gametocyte gives rise to four gametes. During the first sexual reproduction event, only gametes with the sex-controlling mutation (S) could fuse to form zygotes. Thus, the harmful mutations (D) were eliminated (die due to dms) or were diluted (not shown). In addition, the sex controlling mutation was fixed in the population (Yukio Yasui, Eisuke Hasegawa. Journal of Ethology. August 19, 2022).
19 Aug 2022
Two novel hypotheses have been proposed that address the “two-fold cost of sex”: one of the biggest enigmas in the evolution of sexual reproduction.

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