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Characterization and evolutionary analysis of phosphate starvation response genes in wheat and other major gramineous plants. | LitMetric

Characterization and evolutionary analysis of phosphate starvation response genes in wheat and other major gramineous plants.

Int J Biol Macromol

Institute of Hybrid Wheat, Beijing Academy of Agriculture and Forestry Sciences (BAAFS), Beijing 100097, China; The Municipal Key Laboratory of the Molecular Genetics of Hybrid Wheat, Beijing 100097, China. Electronic address:

Published: January 2023

AI Article Synopsis

Article Abstract

Developing cultivars with improved Pi use efficiency is essential for the sustainability of agriculture as well as the environment. Phosphate starvation response (PHR) regulators have not yet been systematically studied in wheat. This study provides the detailed characteristics of PHRs in hexaploid wheat as well as other major gramineous plants at the genome-wide level. The identified PHR proteins were divided into six subfamilies through phylogeny analysis, and a total of 63 paralogous TaPHR pairs were designated as arising from duplication events, with strong purifying selection. The promoters of TaPHRs were identified as stations for many transcription factors. Protein-protein interaction network and gene ontology enrichment analysis indicated a core biological process of cellular response to phosphate starvation. The three-dimensional structures of core PHR proteins showed a high phylogenetic relationship, but amino acid deletions in core protein domains may cause functional differentiation between rice and wheat. TaPHR3 could interact with TaSPX1 and TaSPX5 proteins, which is regarded as a novel interaction mode. Under different Pi gradient treatments, TaPHRs showed low inducible expression patterns among all subfamilies. Our study is the first to comprehensively clarify the basic properties of TaPHR proteins and might accumulate basic data for improving grain yield and environmental homeostasis.

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Source
http://dx.doi.org/10.1016/j.ijbiomac.2022.11.298DOI Listing

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