Article

Evolutionary Ecology

, Volume 10, Issue 5, pp 545-558

First online:

The evolution of phage lysis timing

  • Ing-Nang WangAffiliated withDepartment of Ecology and Evolution, State University of New York at Stony Brook
  • , Daniel E. DykhuizenAffiliated withDepartment of Ecology and Evolution, State University of New York at Stony Brook
  • , Lawrence B. SlobodkinAffiliated withDepartment of Ecology and Evolution, State University of New York at Stony Brook

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Summary

The effect of host quantity and host quality on the evolution of phage lysis timing is analysed using marginal value theorem of optimal foraging theory. Both factors have been shown to strongly influence the latent period. A high host density selects for short latent period, which is the same result as previous investigators have found. A good host quality also promotes a short latent period. However, elasticity analysis shows that these two factors exert their influences under different sets of conditions. When host density is low, the host density is more important in determining the length of latent period, whereas when host density is high, the host quality is more important.

Keywords

lysis timing phage optimal foraging theory marginal value theorem MVT