Evolution of conditional cooperation

有条件合作的演变

• 批准号: 1660676
• 金额: --
• 依托单位: University of Bath
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2015
• 资助国家: 英国
• 起止时间: 2015 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-1660676
• 关键词: Evolution; conditional; cooperation

Social interactions are ubiquitous across the tree of life, from microbes to complex social systems of higher organisms. The evolutionary consequences of social interactions have been extensively studied theoretically and are well characterised experimentally. However, aside from a few studies in model organisms, we have limited understanding of the evolution of conditional or 'strategic' social interactions, especially cooperation. This studentship will utilize mathematical theory and the social amoeba Dictyostelium discoideum to dissect patterns of variation in contributions to cooperative social traits. D. discoideum live in soil as single-celled amoebae but upon starvation large numbers (ca. 105) aggregate to form a multicellular fruiting body composed of dead stalk cells holding aloft a ball of viable spores. Because fruiting bodies can contain mixtures of genotypes (i.e., multicellular individuals can be chimeras) this scenario can favour exploitative strategies that increase representation among the viable spores. Our previous work demonstrated that strains employ varying social strategies that determine social success. This studentship is aimed at understanding the evolution of these strategies, viewed at the level of conditional modulation of contributions towards cooperative traits.

从微生物到更高生物体的复杂社会系统，社会互动无处不在。社会互动的进化后果已经在理论上进行了广泛的研究，并在实验上得到了很好的特征。但是，除了在模型生物体中进行的一些研究外，我们对有条件或“战略”社会互动的演变，尤其是合作的发展有限。该学生将利用数学理论和社会变形虫迪斯特尔迪斯特尔（Dictyostelium Discoideum）来剖析合作社会特征的贡献的变化模式。 D. Discoideum以单细胞的变形虫的形式生活在土壤中，但饥饿的大量（约105）骨料中，形成了一个由死茎细胞组成的多细胞效果体，该体由死的茎细胞组成，将高高的孢子固定在一个可行的孢子中。因为结果可以包含基因型的混合物（即多细胞个体可以成为嵌合体），因此这种情况可以有利于剥削策略，从而增加可行孢子之间的代表性。我们以前的工作表明，菌株采用了决定社会成功的各种社会策略。该学生旨在理解这些策略的演变，以对合作特征的有条件调制的水平进行看法。

项目成果

Strategic investment explains patterns of cooperation and cheating in a microbe

• DOI: 10.1073/pnas.1716087115
• 发表时间: 2018-05-22
• 期刊: PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
• 影响因子: 11.1
• 作者: Madgwick, Philip G.;Stewart, Balint;Wolf, Jason B.
• 通讯作者: Wolf, Jason B.