Different evolutionary histories of two cation/proton exchanger gene families in plants.

ABSTRACT:

Background

Gene duplication events have been proposed to be involved in the adaptation of plants to stress conditions; precisely how is unclear. To address this question, we studied the evolution of two families of antiporters. Cation/proton exchangers are important for normal cell function and in plants, Na+,K+/H+ antiporters have also been implicated in salt tolerance. Two well-known plant cation/proton antiporters are NHX1 and SOS1, which perform Na+ and K+ compartmentalization into the vacuole and Na+ efflux from the cell, respectively. However, our knowledge about the evolution of NHX and SOS1 stress responsive gene families is still limited.

Results

In this study we performed a comprehensive molecular evolutionary analysis of the NHX and SOS1 families. Using available

SUBMITTER: Pires IS 

PROVIDER: S-EPMC3726471 | biostudies-literature | 2013 Jul

REPOSITORIES: biostudies-literature