Skip to main content
Dryad logo

Data from: Rapid evolution of sex frequency and dormancy as hydroperiod adaptations

Citation

Smith, Hilary A.; Snell, Terry W. (2012), Data from: Rapid evolution of sex frequency and dormancy as hydroperiod adaptations, Dryad, Dataset, https://doi.org/10.5061/dryad.4890t057

Abstract

Dormancy can serve as an adaptation to persist in variable habitats, and often is coupled with sex. In cyclically parthenogenetic rotifers an asexual phase enables rapid population growth, whereas sex results in diapausing embryos capable of tolerating desiccation. Few studies have experimentally tested whether sex-dormancy associations in temporary waters reflect evolution in response to the short hydroperiod selecting for diapause ability. Here we demonstrate evolution of higher propensity for sex and dormancy in ephemeral rotifer cultures mimicking temporary ponds, and lower propensity in permanent cultures. Results are consistent with rapid evolution, with evolutionary changes occurring in a short timeframe (385 d, ≤84 generations). We also provide insight into mechanisms for rapid evolution in basal metazoans, discussing potential roles of new mutations, recombination, and clonal selection.

Usage Notes