Long noncoding RNAs (lncRNAs) act important roles in a wide range of biological processes. The regulatory roles of lncRNAs are still poorly understood. One of the major problems of limiting plant productivity is the salinity in the worldwide that barley (Hordeum vulgare L.) seems to be relatively well adapted to salinity environments. The aim of this study is the investigation of lncRNAs’ expression levels on four barley genotypes (Hasat, Beysehir 99, Konevi 98 and Tarm 92) to 150 mM salt stress application during 3 days germination. Grains were placed randomly in petri dishes containing filter paper soaked in (a) only H2O (control), (b) 150 mM NaCl for 72 h. RNA extraction were carried out using TriPure® reagent from root and shoot samples obtained after 150 mM salt treatment. Expression levels of CNT0018772 and CNT0031477 were determined by qPCR. Expression analysis demonstrated salinity effected expression levels of CNT0018772 and CNT0031477 on roots and shoots during germination. The expression levels of CNT0018772 for 150 mM salt applied groups were down-regulated raged between (log2–0.52 and–35.65) compared controls on roots and shoot. The expression levels of CNT0031477 in 150 mM salt applied groups were also down-regulated ranged between (log2–10.40 and 33.59) compared controls on roots and shoot except for Tarm 92 variety. On the contrary, expression levels of CNT0031477 were up-regulated on root and shoot of Tarm 92. Comparison of CNT0018772 and CNT0031477 expression levels on roots, there was no significant difference between barley varieties compared to controls (p > 0.05). However, it was found there was statistically significant difference between 150 mM salt treatment and control groups for CNT0031477 expression levels (p < 0.05). It was determined Konevi 98 shoot control expression level was statistically higher than Tarm 92 shoot control. This is the first report about the lncRNAs expression levels of barley under salinity.
Russian Journal of Genetics – Springer Journals
Published: Mar 12, 2018
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