GrainGenes Reference Report: MPP-18-125
Reference
MPP-18-125
Title
A wheat COP9 subunit 5-like gene is negatively involved in host response to leaf rust.
Journal
Molecular Plant Pathology
Year
2017
Volume
18
Pages
125-133
Author
Zhang H Wang X Giroux MJ Huang L
Abstract
The COP9 (constitutive photomorphogenesis 9) signalosome (CSN) is a protein complex involved in the ubiquitin proteasome system and a common host target of diverse pathogens in Arabidopsis. The known derubylation function of the COP9 complex is carried out by subunit 5 encoded by AtCSN5A or AtCSN5B in Arabidopsis. A single CSN5-like gene (designated as TaCSN5) with three homeologues was identified on the long arms of wheat (Triticum aestivum L.) group 2 chromosomes. In this study, we identified and characterized the function of TaCSN5 in response to infection by the leaf rust pathogen. Down-regulation of all three TaCSN5 homeologues or mutations in the homeologues on chromosomes 2A or 2D resulted in significantly enhanced resistance to leaf rust. Enhanced leaf rust resistance corresponded to a seven-fold increase in PR1 (pathogenesis-related gene 1) expression. Collectively, the data indicate that the wheat COP9 subunit 5-like gene acts as a negative regulator of wheat leaf rust resistance.
External Databases
PubMed: 27581057
Keyword
in silico cloning leaf rust qRT-PCR Triticum aestivum VIGS
GrainGenes is a product of the Agricultural Research Service of the US Department of Agriculture.
GrainGenes Reference Report: MPP-18-125
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GrainGenes is a product of the Agricultural Research Service of the US Department of Agriculture. | |||