Characterization of a family of Arabidopsis receptor-like cytoplasmic kinases (RLCK class VI)

Manuela E. Jurca, S. Bottka, A. Fehér

Research output: Contribution to journalArticle

29 Citations (Scopus)

Abstract

The receptor-like cytoplasmic protein kinases (RLCKs) are plant-specific proteins encoded by almost 200 genes in the Arabidopsis genome. Despite of their high number, the available information on the potential function of RLCKs is very limited. In this report, the sequence analysis and the gene expression pattern of 14 members of one of the Arabidopsis RLCK families (RLCK class VI) are described. Sequence comparison indicated that gene duplication played a significant role in the formation of the kinase family and that several members carry an N-terminal "universal stress protein" (UspA) domain. In order to gain insight into the potential function of the RLCK VI kinases, real-time quantitative reverse transcription-polymerase chain reaction (qRT-PCR) was used to determine the relative transcript levels in the various organs of the Arabidopsis plant as well as under a series of abiotic stress/hormone treatments in seedlings. The obtained data revealed the differentially regulated expression of the genes in agreement with a high variability of sequence elements in their promoters. The divergent expression patterns indicate that the encoded kinase proteins may be involved in a wide variety of signal transduction pathways related to plant development and stress responses. The significance of gene duplication and expression divergence in the extension of the Arabidopsis RLCK VI family during evolution is discussed.

Original languageEnglish
Pages (from-to)739-748
Number of pages10
JournalPlant Cell Reports
Volume27
Issue number4
DOIs
Publication statusPublished - Apr 2008

Fingerprint

protein kinases
phosphotransferases (kinases)
Arabidopsis
receptors
gene duplication
gene expression
plant stress
abiotic stress
plant development
signal transduction
stress response
quantitative polymerase chain reaction
sequence analysis
proteins
reverse transcriptase polymerase chain reaction
promoter regions
hormones
genome
seedlings
genes

Keywords

  • Abiotic stress treatment
  • Arabidopsis thaliana
  • Gene duplication
  • Gene expression
  • Organs
  • qRT-PCR
  • Real-time quantitative PCR
  • UspA domain

ASJC Scopus subject areas

  • Plant Science

Cite this

Characterization of a family of Arabidopsis receptor-like cytoplasmic kinases (RLCK class VI). / Jurca, Manuela E.; Bottka, S.; Fehér, A.

In: Plant Cell Reports, Vol. 27, No. 4, 04.2008, p. 739-748.

Research output: Contribution to journalArticle

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