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  • The importance of ecological dynamics in evolutionary processes : a host-bacteriophage model revisited
    Boldin, Barbara, 1976-
    A recent study of adaptive dynamics of lysis propensity in temperate phages suggested that full lysogeny emerges as the outcome of bacteriophage evolution in a simple host-phage system. The ... conclusion is based on the premise that mutant strains necessarily appear in equilibrium host-phage environments. Revisiting the model, we show that the ecological system exhibits richer asymptotic dynamics and that, in a certain parameter regime, evolution may in fact drive lysis propensity towards an evolutionary singularity in which a non-zero proportion of phages initiate infection in a lytic cycle. These singularities act as points of evolutionary diversification, leading to periodic coexistence of two distinct phage strains on the evolutionary time-scale. One of the two strains in the dimorphic evolutionary singularity is fully lysogenic (in the sense that cell infection always leads to lysogeny), while the other is partially lytic. Our study thus highlights the importance of ecological interactions as a driver of evolution.
    Vir: Journal of theoretical biology. - ISSN 0022-5193 (Vol. 539, art. 111057, Apr. 2022, str. 1-10)
    Vrsta gradiva - članek, sestavni del ; neleposlovje za odrasle
    Leto - 2022
    Jezik - angleški
    COBISS.SI-ID - 99137539

    Povezava(-e):

    https://doi.org/10.1016/j.jtbi.2022.111057
    https://www.sciencedirect.com/science/article/pii/S0022519322000558
    DOI

vir: Journal of theoretical biology. - ISSN 0022-5193 (Vol. 539, art. 111057, Apr. 2022, str. 1-10)

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