Duplication of NRAMP3 gene in poplars generated two homologous transporters with distinct functions.

ABSTRACT: Transition metals are essential for a wealth of metabolic reactions, but their concentrations need to be tightly controlled across cells and cell compartments, as metal excess or imbalance has deleterious effects. Metal homeostasis is achieved by a combination of metal transport across membranes and metal binding to a variety of molecules. Gene duplication is a key process in evolution, as emergence of advantageous mutations on one of the copies can confer a new function. Here, we report that the poplar genome contains two paralogues encoding NRAMP3 metal transporters localized in tandem. All Populus species analyzed had two copies of NRAMP3, whereas only one could be identified in Salix species indicating that duplication occurred when the two genera separated. Both copies are under purif

SUBMITTER: Pottier M 

PROVIDER: S-EPMC9234761 | biostudies-literature | 2022 Jun

REPOSITORIES: biostudies-literature