Slime Mould and the Transition to Multicellularity: The Role of the Macrocyst Stage

Bryden, John

doi:10.1007/11553090_56

Cited by 7 publications

(6 citation statements)

References 24 publications

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“…An essential part of the model is the quantification of the costs and benefits of social behaviour within an ecological context. This approach may be usefully applied to studying the impact of environmental factors on the evolution of sociality in other model organisms such as slime mould (Bryden 2005(Bryden , 2007. …”

Section: Discussionmentioning

confidence: 99%

The impact of clonal mixing on the evolution of social behaviour in aphids

Bryden

Jansen

2010

Proc. R. Soc. B.

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Reports of substantial clonal mixing measured in social aphid colonies seem, on the face of it, to rule out population structure as an explanation of this enigmatic insect's social behaviour. To clarify how selection operates in aphids, and to disentangle direct and indirect fitness components, we present a model of the life cycle of a typical colony-dwelling aphid. The model incorporates ecological factors and includes a trade-off between investing in social behaviour and investing in reproduction. Our focus on inclusive fitness contrasts with previous approaches that optimize colony output. Through deriving a variant of Hamilton's rule, we show that a simple relationship can be established between the patch-carrying capacity and immigration rates into patches. Our results indicate that the levels of clonal mixing reported are not inconsistent with social behaviour. We discuss our model in terms of the evolutionary origins of social behaviour in aphids.

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Section: Discussionmentioning

confidence: 99%

The impact of clonal mixing on the evolution of social behaviour in aphids

Bryden

Jansen

2010

Proc. R. Soc. B.

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“…Consider the remarkable adaptability of slime molds [4]. Each slime mold cell is a peer and hence modular, with its own state, hiding its internals.…”

Section: Consequencesmentioning

confidence: 99%

The Ripple of Technology: A Literature Review on Examining the Impact of ICT on Tibetan Refugees Through the Lens of Modernity and Postmodernism

Ding

2024

Proceedings of the Annual Hawaii International Conference on System Sciences

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As software-intensive systems continue to grow in scale and complexity the techniques that we have used to design and analyze them in the past no longer suffice. In this paper we look at examples of existing ultra-large-scale systems-systems of enormous size and complexity. We examine instances of such systems that have arisen spontaneously in nature and those that have been human-constructed. We distill from these example systems the design primitives that underlie them. We capture these design primitives as a set of tactics-fundamental architectural buildingblocks-and argue that to efficiently build and analyze such systems in the future we should strongly consider employing such building-blocks.

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“…In contrast with the studies on fruiting body formation, however, there are fewer studies on the evolution of macrocyst formation, probably because of difficulties in germinating macrocysts in the laboratory [28]. To our knowledge, there are only two theoretical studies on macrocyst formation: one shows that fluctuations in food availability play an important role in maintaining the ability to aggregate the vegetative cells [29], and the other indicates that without food fluctuation, vegetative cells would still respond to cAMP if macrocyst formation co-occurs with fruiting body formation and if cooperation in fruiting body formation is preserved [30].…”

Section: Introductionmentioning

confidence: 99%

Cyclic dominance emerges from the evolution of two inter-linked cooperative behaviours in the social amoeba

Shibasaki

Shimada

2018

Proc. R. Soc. B.

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Evolution of cooperation has been one of the most important problems in sociobiology, and many researchers have revealed mechanisms that can facilitate the evolution of cooperation. However, most studies deal only with one cooperative behaviour, even though some organisms perform two or more cooperative behaviours. The social amoeba performs two cooperative behaviours in starvation: fruiting body formation and macrocyst formation. Here, we constructed a model that couples these two behaviours, and we found that the two behaviours are maintained because of the emergence of cyclic dominance, although cooperation cannot evolve if only either of the two behaviours is performed. The common chemoattractant cyclic adenosine 3',5'-monophosphate (cAMP) is used in both fruiting body formation and macrocyst formation, providing a biological context for this coupling. Cyclic dominance emerges regardless of the existence of mating types or spatial structure in the model. In addition, cooperation can re-emerge in the population even after it goes extinct. These results indicate that the two cooperative behaviours of the social amoeba are maintained because of the common chemical signal that underlies both fruiting body formation and macrocyst formation. We demonstrate the importance of coupling multiple games when the underlying behaviours are associated with one another.

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Slime Mould and the Transition to Multicellularity: The Role of the Macrocyst Stage

Cited by 7 publications

References 24 publications

The impact of clonal mixing on the evolution of social behaviour in aphids

The impact of clonal mixing on the evolution of social behaviour in aphids

The Ripple of Technology: A Literature Review on Examining the Impact of ICT on Tibetan Refugees Through the Lens of Modernity and Postmodernism

Cyclic dominance emerges from the evolution of two inter-linked cooperative behaviours in the social amoeba

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