Identification of drought responsive proteins and related proteomic QTLs in barley

Abstract

In barley, Rubisco activase, luminal binding protein, phosphoglycerate mutase, glutathione S-transferase, heat shock proteins, and enzymes involved in phenylpropanoid biosynthesis respond to drought in a genotype-specific manner.

Breeding and biotechnological interventions for trait improvement: status and prospects

“…In addition to these genomic QTLs, several other types of QTLs, namely expression QTL (eQTL), proteomic QTL (pQTL), metabolic (mQTL), and phenomic QTL (phQTL) are seeing their dawn in breeding for crop improvement. An eQTL illustrates the genetic variance of a gene expression phenotype (Nica and Dermitzakis 2013 ), while in pQTL, protein abundance is correlated with genetic polymorphism (Rodziewicz et al 2019 ). On the other hand, chromosomal regions that encompass loci that contribute to genetic variation in phenotypic traits are called phQTL.…”

Breeding drought-resistant crops: G×E interactions, proteomics and pQTLS

“…In the study by Rodziewicz et al (2019) the authors developed an innovative approach enabling them to assess, in total, 408 sets of 2-DE gels from leaf and root samples covering 100 recombinant inbred lines (RILs) derived from German semi-dwarf cultivar Maresi and Syrian breeding line Cam/B1/CI, i.e. genotypes revealing different drought-response strategies.…”

“…However, as with other quantitative traits, the quantitative changes in relative abundance of marker proteins are determined by G×E interactions which limit their application in breeding programmes. Dissection of these effects through proteomic studies aimed at pQTL mapping is essential, and a new approach from Rodziewicz et al (2019) is an important step forward. Their effective analysis of protein abundances in very large two-dimensional (2-DE) gel sets, essential for pQTL mapping, will help drive the development of improved drought-resistant varieties.…”

Physiological and Proteomic Signatures Reveal Mechanisms of Superior Drought Resilience in Pearl Millet Compared to Wheat

“…These candidates can be further integrated into the marker-assisted breeding strategy to enhance the selection of plants with desired traits ( Tuberosa and Salvi, 2006 ). Several studies were performed to understand the effect of drought stress on crop plants at proteomics level ( Riccardi et al, 2004 ; Ford et al, 2011 ; Komatsu et al, 2014 ; Chmielewska et al, 2016 ; Ghatak et al, 2016 ; Ghatak et al, 2017a , b ; Michaletti et al, 2018 ; Rodziewicz et al, 2019 ).…”