Gene expression dynamics of HKT family genes in salt-tolerant and salt-sensitive indica rice cultivars


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Authors

  • Pragya Mishra Banasthali University, Tonk 304 022, Rajasthan
  • Vagish Mishra National Research Centre on Plant Biotechnology, Pusa Campus, New Delhi 110 012
  • Nagendra Kumar Singh National Research Centre on Plant Biotechnology, Pusa Campus, New Delhi 110 012
  • Vandna Rai National Research Centre on Plant Biotechnology, Pusa Campus, New Delhi 110 012

Abstract

Soil salinity is one of the major constraints limiting
productivity of crop plants. In present study, effect of NaCl
(150mM) on high-affinity potassium transporters (HKTs)
were investigated into four contrasting rice genotypes salttolerant (CSR11, CSR27) and salt-sensitive (MI48 and
VSR156). Salinity stress significantly reduced growth of
VSR156 and MI48 whereas, only slight reduction was
observed in CSR11 and CSR27. Under NaCl stress, OsHKTs
group I transcripts were significantly up-regulated in saltsensitive varieties in comparison with salt-tolerant.
However, OsHKTs group II showed higher expression in
salt-tolerant one in comparison with sat-sensitive. These
results suggested the differential expression of OsHKT
group I and II genes and hence, their differential behavior
in response to salt stress. Our study, elucidate the role of
seven OsHKT genes in shoot and root for salt tolerance in
rice plant

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Submitted

2017-08-26

Published

2017-08-26

Issue

Vol. 77 No. 3 (2017): The Indian Journal of Genetics and Plant Breeding

Section

Articles

How to Cite

Mishra, P., Mishra, V., Singh, N. K., & Rai, V. (2017). Gene expression dynamics of HKT family genes in salt-tolerant and salt-sensitive indica rice cultivars. The Indian Journal of Genetics and Plant Breeding, 77(3). https://epubs.icar.org.in/index.php/IJGPB/article/view/73675