Do replicates of independent guppy lineages evolve similarly in a predator-free laboratory environment?

ABSTRACT: The Trinidadian guppy is emblematic of parallel and convergent evolution, with repeated demonstrations that predation regime is a driver of adaptive trait evolution. A classic and foundational experiment in this system was conducted by John Endler 40 years ago, where male guppies placed into low-predation environments in the laboratory evolved increased color in a few generations. However, Endler's experiment did not employ the now typical design for a parallel/convergent evolution study, which would employ replicates of different ancestral lineages. We therefore implemented an experiment that seeded replicate mesocosms with small founding populations of guppies originating from high-predation populations of two very different lineages. The different mesocosms were maintained identically,

SUBMITTER: Gotanda KM 

PROVIDER: S-EPMC6342246 | biostudies-literature | 2019 Jan

REPOSITORIES: biostudies-literature