Two waves of adaptation: speciation induced by dormancy in a model with changing environment

Autor:	Cordero, Fernando, Casanova, Adrián González, Schweinsberg, Jason
Rok vydání:	2024
Předmět:	Quantitative Biology - Populations and Evolution Mathematics - Probability 60J99 60J80 92D25 92D15
Druh dokumentu:	Working Paper
Popis:	We consider a population model in which the season alternates between winter and summer, and individuals can acquire mutations either that are advantageous in the summer and disadvantageous in the winter, or vice versa. Also, we assume that individuals in the population can either be active or dormant, and that individuals can move between these two states. Dormant individuals do not reproduce but do not experience selective pressures. We show that, under certain conditions, over time we see two waves of adaptation. Some individuals repeatedly acquire mutations that are beneficial in the summer, while others repeatedly acquire mutations that are beneficial in the winter. Individuals can survive the season during which they are less fit by entering a dormant state. This result demonstrates that, for populations in fluctuating environments, dormancy has the potential to induce speciation. Comment: 57 pages
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2410.10890 Zobrazit plný text záznamu View this record from Arxiv