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没有证据表明,平分化有利于eusociality的演变
Rosa Bonifacii1, Louis Bell-Roberts2, Alan Grafen1
1Department of Biology, University of Oxford, Oxford OX1 3EL, United Kingdom.
概括
哈普洛迪普洛伊德的性别确定不促进eusociality的进化. 这项研究发现,没有证据表明平分类与昆虫种群中社会进化率的增加有关,这挑战了长期以来的假设.
科学领域:
- 进化生物学 进化生物学
- 行为生态学 行为生态学
- 遗传学 遗传学 是一个
背景情况:
- 哈普罗迪普洛伊迪假说提出,哈普罗迪普洛伊德的性别决定促进了利他主义和社会主义的演变.
- 这一假设已经争论了50多年,有相互矛盾的理论模型和经验证据.
- 以前的研究往往缺乏遗传学控制,可能导致偏见的结果.
研究的目的:
- 批判性地检查证据,以证明平分化和社会性之间的适应性联系.
- 应用遗传学知情的方法来测试单 haplodiploidy 假设.
- 为了确定 haplodiploidy 是否真正有利于eusociality 的演变.
主要方法:
- 进行了对主要昆虫种类中的5,678个物种的数据的大规模分析.
- 采用了基于遗传学信息的统计方法来解释进化关系.
- 使用不同的分析方法和eusociality和haplodiploidy的定义来测试发现的稳定性.
主要成果:
- 没有发现证据表明平分化有利于提高社会进化的速度.
- 哈普罗迪普洛伊迪和eusociality之间的关联似乎是一个人工制造,而不是因果关系.
- 海门的高社会性率很可能是由其他因素驱动的,例如父母的照顾或一夫一妻制.
结论:
- 哈普洛迪普洛伊迪不会为eusociality的发展提供进化优势.
- "哈普洛迪普洛伊迪假说"没有得到强有力的,由遗传学控制的经验数据的支持.
- 其他生态和社会因素更有可能是昆虫社会进化的驱动因素.
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