Expression analysis of K+ transporter genes associated with salinity tolerance in grape

Document Type : Original research paper


1 Shahid Bakeri High Education Center of Miandoab, Urmia University, Urmia, Iran

2 Department of Biology, Faculty of Science, Urmia University, Urmia, Iran


Molecular information of K+ accumulation in grapes is strongly required. Under salinity condition potassium transporters are inhibited by Na+. The aim of this study was to investigate the effects of salinity on the expression of K+ transporter genes in grape. Based on the previous screening study on 18 grape genotypes, ‘H6’ and ‘Gharashani’ (tolerant) and ‘Shirazi’ and ‘GhezelUzum’ (sensitive) were selected. Plants were treated with 50 mM NaCl as a critical concentration that was not lethal for grapevine plants. Interestingly, the expression of VvKUP1, VvKUP2 and VvK1.1 genes highly increased in leaves of sensitive genotypes compared to tolerant ones. Also the expression of VvKUP1 and VvKUP2 genes were similar in the leaves of sensitive genotypes. There was a significant positive correlation (P


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Volume 4, Issue 1
June 2016
Pages 1-9
  • Receive Date: 22 December 2015
  • Revise Date: 08 May 2016
  • Accept Date: 11 June 2016
  • First Publish Date: 11 June 2016