Expression analysis of K+ transporter genes associated with salinity tolerance in grape
سال انتشار: 1394
نوع سند: مقاله ژورنالی
زبان: انگلیسی
مشاهده: 321
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شناسه ملی سند علمی:
JR_JPMB-4-1_001
تاریخ نمایه سازی: 15 اردیبهشت 1397
چکیده مقاله:
Molecular information of K+ accumulation in grapes is strongly required. Under salinity condition potassiumtransporters 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 concentrationthat was not lethal for grapevine plants. Interestingly, the expression of VvKUP1, VvKUP2 and VvK1.1 genes highlyincreased in leaves of sensitive genotypes compared to tolerant ones. Also the expression of VvKUP1 and VvKUP2 geneswere similar in the leaves of sensitive genotypes. There was a significant positive correlation (P<0.05) between the expressionof K+ transporters –VvKUP1 and VvKUP2- and the accumulation of Na+ in the leaves of sensitive genotypes. Roots of allgenotypes showed increase in expression of VvK1.1 under salinity. The findings highlighted a strong relationship betweenthe accumulation of specific transcripts and the degree of stress tolerance.
کلیدواژه ها:
نویسندگان
Nayer Mohammadkhani
Shahid Bakeri High Education Center of Miandoab, Urmia University, Urmia, Iran
Reza Heidari
Department of Biology, Faculty of Science, Urmia University, Urmia, Iran
Nasser Abbaspour
Department of Biology, Faculty of Science, Urmia University, Urmia, Iran
Fatemeh Rahmani
Department of Biology, Faculty of Science, Urmia University, Urmia, Iran