Adaptive Role of Inversion Polymorphism of Drosophila subobscura in Lead Stressed Environment.

ABSTRACT: Local adaptation to environmental stress at different levels of genetic polymorphism in various plants and animals has been documented through evolution of heavy metal tolerance. We used samples of Drosophila subobscura populations from two differently polluted environments to analyze the change of chromosomal inversion polymorphism as genetic marker during laboratory exposure to lead. Exposure to environmental contamination can affect the genetic content within a particular inversion and produce targets for selection in populations from different environments. The aims were to discover whether the inversion polymorphism is shaped by the local natural environments, and if lead as a selection pressure would cause adaptive divergence of two populations during the multigenerational laboratory

SUBMITTER: Kenig B 

PROVIDER: S-EPMC4478027 | biostudies-literature | 2015

REPOSITORIES: biostudies-literature