Record Details

Duplicated RGS (Regulator of G-protein signaling) proteins exhibit conserved biochemical but differential transcriptional regulation of heterotrimeric G-protein signaling in Brassica species

NIPGR Digital Knowledge Repository (NDKR)

View Archive Info
 
 
Field Value
 
Title Duplicated RGS (Regulator of G-protein signaling) proteins exhibit conserved biochemical but differential transcriptional regulation of heterotrimeric G-protein signaling in Brassica species
 
Creator Kumar, Roshan
Bisht, Naveen C.
 
Subject Regulator of G-protein signaling
G-protein signaling in Brassica species
heterotrimeric G-protein signaling
Plant molecular biology
Plant signalling
 
Description Accepted date: 18 January 2018
G-alpha (Gα) and 'Regulator of G-protein Signaling (RGS)' proteins are the two key components primarily involved in regulation of heterotrimeric G-proteins signaling across phyla. Unlike Arabidopsis thaliana, our knowledge about G-protein regulation in polyploid Brassica species is sparse. In this study, we identified one Gα and two RGS genes each from three species of Brassica 'U' triangle and assessed the effects of whole genome triplication on the divergence of gene sequence and structure, protein-protein interaction, biochemical activities, and gene expression. Sequence and phylogenetic analysis revealed that the deduced Gα and RGS proteins are evolutionarily conserved across Brassica species. The duplicated RGS proteins of each Brassica species interacted with their cognate Gα but displayed varying levels of interaction strength. The Gα and the duplicated RGS proteins of Brassica species exhibited highly conserved G-protein activities when tested under in-vitro conditions. Expression analysis of the B. rapa RGS genes revealed a high degree of transcriptional differentiation across the tested tissue types and in response to various elicitors, particularly under D-glucose, salt and phytohormone treatments. Taken together, our results suggest that the RGS-mediated regulation of G-protein signaling in Brassica species is predominantly governed by stage and condition-specific expression differentiation of the duplicated RGS genes.
The central instrumentation facility and plant growth facility at National Institute of Plant Genome Research,
India is acknowledged. Te work was supported by the core grant of National Institute of Plant Genome Research
(NIPGR). RK was funded with the Senior Research Fellowship by the University Grant Commission (India) and
NIPGR.
 
Date 2018-02-15T07:21:55Z
2018-02-15T07:21:55Z
2018
 
Type Article
 
Identifier Scientific Reports, 8(1): 2176
2045-2322
http://223.31.159.10:8080/jspui/handle/123456789/835
https://www.nature.com/articles/s41598-018-20500-3
10.1038/s41598-018-20500-3
 
Language en_US
 
Format application/pdf
 
Publisher Nature Publishing Group