Genome-Wide Expression Pattern Analyses of the Arabidopsis Leucine-Rich Repeat Receptor-Like Kinases

Mol Plant. 2016 Feb 1;9(2):289-300. doi: 10.1016/j.molp.2015.12.011. Epub 2015 Dec 19.

Abstract

Receptor-like protein kinases (RLKs) are a large group of transmembrane proteins playing critical roles in cell-cell and cell-environment communications. Based on extracellular domain structures, RLKs were classified into more than 21 subfamilies, among which leucine-rich repeat RLKs (LRR-RLKs) belong to the largest subfamily in plants such as Arabidopsis and rice. In Arabidopsis, there are approximately 223 LRR-RLKs, but only about 60 of which have been functionally described to date. To systematically investigate the roles of LRR-RLKs in regulating plant growth, development, and stress adaptations, we generated promoter::GUS transgenic plants for all 223 LRR-RLK genes in Arabidopsis and analyzed their detailed expression patterns at various developmental stages. The results provide valuable resources for functionally elucidating this large and essential signaling protein subfamily.

Keywords: Arabidopsis; LRR-RLK; RLK; expression pattern; receptor-like kinase.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Arabidopsis / classification
  • Arabidopsis / enzymology*
  • Arabidopsis / genetics
  • Arabidopsis / growth & development
  • Arabidopsis Proteins / chemistry
  • Arabidopsis Proteins / genetics*
  • Arabidopsis Proteins / metabolism
  • Base Sequence
  • Gene Expression Regulation, Plant
  • Genome, Plant*
  • Leucine / metabolism*
  • Molecular Sequence Data
  • Multigene Family*
  • Phylogeny
  • Plant Roots / chemistry
  • Plant Roots / enzymology
  • Plant Roots / genetics
  • Plant Roots / growth & development
  • Protein Kinases / chemistry
  • Protein Kinases / genetics*
  • Protein Kinases / metabolism

Substances

  • Arabidopsis Proteins
  • Protein Kinases
  • Leucine