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Construction of a network describing asparagine metabolism in plants and its application to the identification of genes affecting asparagine metabolism in wheat under drought and nutritional stress
Author(s) -
Curtis Tanya Y.,
Bo Valeria,
Tucker Allan,
Halford Nigel G.
Publication year - 2018
Publication title -
food and energy security
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.253
H-Index - 25
ISSN - 2048-3694
DOI - 10.1002/fes3.126
Subject(s) - asparagine synthetase , asparagine , biology , metabolism , arabidopsis , arabidopsis thaliana , gene , biochemistry , amino acid , mutant
A detailed network describing asparagine metabolism in plants was constructed using published data from Arabidopsis ( Arabidopsis thaliana ) maize ( Zea mays ), wheat ( Triticum aestivum ), pea ( Pisum sativum ), soybean ( Glycine max ), lupin ( Lupus albus ), and other species, including animals. Asparagine synthesis and degradation is a major part of amino acid and nitrogen metabolism in plants. The complexity of its metabolism, including limiting and regulatory factors, was represented in a logical sequence in a pathway diagram built using yED graph editor software. The network was used with a Unique Network Identification Pipeline in the analysis of data from 18 publicly available transcriptomic data studies. This identified links between genes involved in asparagine metabolism in wheat roots under drought stress, wheat leaves under drought stress, and wheat leaves under conditions of sulfur and nitrogen deficiency. The network represents a powerful aid for interpreting the interactions not only between the genes in the pathway but also among enzymes, metabolites and smaller molecules. It provides a concise, clear understanding of the complexity of asparagine metabolism that could aid the interpretation of data relating to wider amino acid metabolism and other metabolic processes.

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