生殖分工和遗传复杂性的协同作用推动了性别的进化
Synergy from reproductive division of labor and genetic complexity drive the evolution of sex
摘要:
计算机实验反映了自然界中有性和无性生物的演化动力学,测试了解释有性重组进化的特征。结果表明,这种进化更好地描述为可能的性形式之间的相互作用的网络,包括二倍体,thelytoky,兼性,双性,两性之间的劳动分工,而不是从单性生殖到有性重组的简单过渡。二倍体被证明是性别进化的基础;两性生殖只出现在异花受精的二倍体中,具有协同的生殖分工;兼性性更有可能在实行交替交配的单倍体中进化。通过基于个体的模拟来观察性作为一个复杂系统的进化,与经典的分析模型相比,更好地解释了自然界中已知存在的性策略的多样性
英文摘要:
Computer experiments that mirror the evolutionary dynamics of sexual and asexual organisms as they occur in nature, tested features proposed to explain the evolution of sexual recombination. Results show that this evolution is better described as a network of interactions between possible sexual forms, including diploidy, thelytoky, facultative sex, assortation, bisexuality, and division of labor between the sexes, rather than a simple transition from parthenogenesis to sexual recombination. Diploidy was shown to be fundamental for the evolution of sex; bisexual reproduction emerged only among anisogamic diploids with a synergistic division of reproductive labor; and facultative sex was more likely to evolve among haploids practicing assortative mating. Looking at the evolution of sex as a complex system through individual based simulations, explains better the diversity of sexual strategies known to exist in nature, compared to classical analytical models
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