Digital sex: Causes and consequences
نویسندگان
چکیده
Many theories have sought to explain the evolution of sex, but the question remains unanswered owing to the scarcity of compelling empirical tests. Here we summarize the results of two of our published studies investigating the evolution of sex using digital organisms. We used these evolving programs to test the hypothesis that sexual reproduction is advantageous in changing environments. We found that sex evolved to be the dominant mode of reproduction only when the environment was changing rapidly and substantially. Additionally, we measured the effects of sexual reproduction on genetic architecture, specifically modularity and epistasis. We found that sex profoundly influences genome organization, increasing modularity and decreasing the effects of interactions between mutations. Our studies have contributed to understanding both the causes and consequences of sexual reproduction, while also demonstrating the efficacy and power of in silico approaches to these issues.
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تاریخ انتشار 2011