Convergent evolution of coloration in experimental introductions of the guppy (Poecilia reticulata).

ABSTRACT: Despite the multitude of examples of evolution in action, relatively fewer studies have taken a replicated approach to understand the repeatability of evolution. Here, we examine the convergent evolution of adaptive coloration in experimental introductions of guppies from a high-predation (HP) environment into four low-predation (LP) environments. LP introductions were replicated across 2 years and in two different forest canopy cover types. We take a complementary approach by examining both phenotypes and genetics. For phenotypes, we categorize the whole color pattern on the tail fin of male guppies and analyze evolution using a correspondence analysis. We find that coloration in the introduction sites diverged from the founding Guanapo HP site. Sites group together based on canopy cover,

SUBMITTER: Dick C 

PROVIDER: S-EPMC6157698 | biostudies-literature | 2018 Sep

REPOSITORIES: biostudies-literature