Evolutionary characteristics and differential responses to stresses of RLP genes in Chenopodium quinoa revealed by multi-omics data
RLPs(Receptor-like proteins)are receptors localized on the surface of plant cells.Several RLPs are involved in abiotic stress tolerance and defense against biotic stress.In this study,based on systematic bioinformatics methods,member identification,sequence characteristics demonstration,evolution power elucidation,analysis of expression profiles in different tissues and organs,and under multiple abiotic stresses,a protein interaction network of RLP gene products in Chenopodium quinoa was constructed.In total,106 RLP genes were identified,40 of which have undergone tandem duplications.In a phylogenetic tree,the RLP genes of C.quinoa cluster into four groups.The conserved domain composition in RLP protein encoding sequences shows group-specific distribution.Tandem duplication and whole-genome duplication were proven to be the main factors in RLP gene member expansion in C.quinoa.Transcriptome data demonstrates that the 12 RLP genes exhibit tissue-or organ-specific expression profiles.Additionally,under drought,heat,salt,and low Pi stress conditions,the expression profiles of CqRLP003,CqRLP010,CqRLP12,CqRLP052,and CqRLP061 are significantly repressed.The interaction network of proteins encoded by differentially expressed genes,demonstrates that CqRLP001,CqRLP070,CqRLP082,and AUR62007584 are key regulators in the network.These results demonstrate that RLP gene family members show divergent evolutionary characteristics and participate widely in the regulation of tolerance to multiple abiotic stresses in C.quinoa.
万方数据
维普
