Genome-wide analysis and transcript profiling of PSKR gene family members in Oryza sativa

PLoS One. 2020 Jul 23;15(7):e0236349. doi: 10.1371/journal.pone.0236349. eCollection 2020.

Abstract

Peptide signalling is an integral part of cell-to-cell communication which helps to relay the information responsible for coordinating cell proliferation and differentiation. Phytosulfokine Receptor (PSKR) is a transmembrane LRR-RLK family protein with a binding site for small signalling peptide, phytosulfokine (PSK). PSK signalling through PSKR promotes normal growth and development and also plays a role in defense responses. Like other RLKs, these PSKRs might have a role in signal transduction pathways related to abiotic stress responses. Genome-wide analysis of phytosulfokine receptor gene family has led to the identification of fifteen putative members in the Oryza sativa genome. The expression analysis of OsPSKR genes done using RNA-seq data, showed that these genes were differentially expressed in different tissues and responded specifically to heat, salt, drought and cold stress. Furthermore, the real-time quantitative PCR for fifteen OsPSKR genes revealed temporally and spatially regulated gene expression corresponding to salinity and drought stress. Our results provide useful information for a better understanding of OsPSKR genes and provide the foundation for additional functional exploration of the rice PSKR gene family in development and stress response.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Droughts
  • Gene Expression Profiling
  • Gene Expression Regulation, Plant / genetics
  • Genome, Plant / genetics*
  • Oryza / genetics*
  • Peptide Hormones / genetics*
  • Peptides / classification
  • Peptides / genetics*
  • Phylogeny
  • Plant Proteins / genetics*
  • Salinity
  • Signal Transduction / genetics
  • Sodium Chloride / metabolism
  • Stress, Physiological / genetics

Substances

  • PSK-alpha protein, plant
  • Peptide Hormones
  • Peptides
  • Plant Proteins
  • Sodium Chloride

Grants and funding

This study received support from the Department of Biotechnology (DBT) (Grant No. BT/PR22673/BPA/118/251/2017), Government of India and the South Asian University (SAU), New Delhi. PN was supported by a fellowship from the University Grant Commission (UGC), Government of India. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.