Indirect genetic effects allow escape from the inefficient equilibrium in a coordination game - Sorbonne Université Accéder directement au contenu
Article Dans Une Revue Evolution Letters Année : 2020

Indirect genetic effects allow escape from the inefficient equilibrium in a coordination game

Résumé

Social interactions involving coordination between individuals are subject to an "evolutionary trap." Once a suboptimal strategy has evolved, mutants playing an alternative strategy are counterselected because they fail to coordinate with the majority. This creates a detrimental situation from which evolution cannot escape, preventing the evolution of efficient collective behaviors. Here, we study this problem using evolutionary robotics simulations. We first confirm the existence of an evolutionary trap in a simple setting. We then, however, reveal that evolution can solve this problem in a more realistic setting where individuals need to coordinate with one another. In this setting, simulated robots evolve an ability to adapt plastically their behavior to one another, as this improves the efficiency of their interaction. This ability has an unintended evolutionary consequence: a genetic mutation affecting one individual's behavior also indirectly alters their partner's behavior because the two individuals influence one another. As a consequence of this indirect genetic effect, pairs of partners can virtually change strategy together with a single mutation, and the evolutionary barrier between alternative strategies disappears. This finding reveals a general principle that could play a role in nature to smoothen the transition to efficient collective behaviors in all games with multiple equilibriums.
Fichier principal
Vignette du fichier
evl3.155.pdf (1.36 Mo) Télécharger le fichier
Origine : Publication financée par une institution
Loading...

Dates et versions

hal-02612726 , version 1 (19-05-2020)

Identifiants

Citer

Arthur Bernard, Nicolas Bredèche, Jean-Baptiste André. Indirect genetic effects allow escape from the inefficient equilibrium in a coordination game. Evolution Letters, 2020, ⟨10.1002/evl3.155⟩. ⟨hal-02612726⟩
59 Consultations
57 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More