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Maize Response to Low Temperatures at the Gene Expression Level: A Critical Survey of Transcriptomic Studies

Maize is a cold-sensitive plant whose physiological reactions to sub-optimal temperatures are well understood, but their molecular foundations are only beginning to be deciphered. In an attempt to identify key genes involved in these reactions, we surveyed several independent transcriptomic studies...

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Autores principales: Sowiński, Paweł, Fronk, Jan, Jończyk, Maciej, Grzybowski, Marcin, Kowalec, Piotr, Sobkowiak, Alicja
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Frontiers Media S.A. 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7550719/
https://www.ncbi.nlm.nih.gov/pubmed/33133117
http://dx.doi.org/10.3389/fpls.2020.576941
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author Sowiński, Paweł
Fronk, Jan
Jończyk, Maciej
Grzybowski, Marcin
Kowalec, Piotr
Sobkowiak, Alicja
author_facet Sowiński, Paweł
Fronk, Jan
Jończyk, Maciej
Grzybowski, Marcin
Kowalec, Piotr
Sobkowiak, Alicja
author_sort Sowiński, Paweł
collection PubMed
description Maize is a cold-sensitive plant whose physiological reactions to sub-optimal temperatures are well understood, but their molecular foundations are only beginning to be deciphered. In an attempt to identify key genes involved in these reactions, we surveyed several independent transcriptomic studies addressing the response of juvenile maize to moderate or severe cold. Among the tens of thousands of genes found to change expression upon cold treatment less than 500 were reported in more than one study, indicating an astonishing variability of the expression changes, likely depending on the experimental design and plant material used. Nearly all these “common” genes were specific to either moderate or to severe cold and formed distinct interaction networks, indicating fundamentally different responses. Moreover, down-regulation of gene expression dominated strongly in moderate cold and up-regulation prevailed in severe cold. Very few of these genes have ever been mentioned in the literature as cold-stress–related, indicating that most response pathways remain poorly known at the molecular level. We posit that the genes identified by the present analysis are attractive candidates for further functional studies and their arrangement in complex interaction networks indicates that a re-interpretation of the present state of knowledge on the maize cold-response is justified.
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spelling pubmed-75507192020-10-29 Maize Response to Low Temperatures at the Gene Expression Level: A Critical Survey of Transcriptomic Studies Sowiński, Paweł Fronk, Jan Jończyk, Maciej Grzybowski, Marcin Kowalec, Piotr Sobkowiak, Alicja Front Plant Sci Plant Science Maize is a cold-sensitive plant whose physiological reactions to sub-optimal temperatures are well understood, but their molecular foundations are only beginning to be deciphered. In an attempt to identify key genes involved in these reactions, we surveyed several independent transcriptomic studies addressing the response of juvenile maize to moderate or severe cold. Among the tens of thousands of genes found to change expression upon cold treatment less than 500 were reported in more than one study, indicating an astonishing variability of the expression changes, likely depending on the experimental design and plant material used. Nearly all these “common” genes were specific to either moderate or to severe cold and formed distinct interaction networks, indicating fundamentally different responses. Moreover, down-regulation of gene expression dominated strongly in moderate cold and up-regulation prevailed in severe cold. Very few of these genes have ever been mentioned in the literature as cold-stress–related, indicating that most response pathways remain poorly known at the molecular level. We posit that the genes identified by the present analysis are attractive candidates for further functional studies and their arrangement in complex interaction networks indicates that a re-interpretation of the present state of knowledge on the maize cold-response is justified. Frontiers Media S.A. 2020-09-29 /pmc/articles/PMC7550719/ /pubmed/33133117 http://dx.doi.org/10.3389/fpls.2020.576941 Text en Copyright © 2020 Sowiński, Fronk, Jończyk, Grzybowski, Kowalec and Sobkowiak http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
spellingShingle Plant Science
Sowiński, Paweł
Fronk, Jan
Jończyk, Maciej
Grzybowski, Marcin
Kowalec, Piotr
Sobkowiak, Alicja
Maize Response to Low Temperatures at the Gene Expression Level: A Critical Survey of Transcriptomic Studies
title Maize Response to Low Temperatures at the Gene Expression Level: A Critical Survey of Transcriptomic Studies
title_full Maize Response to Low Temperatures at the Gene Expression Level: A Critical Survey of Transcriptomic Studies
title_fullStr Maize Response to Low Temperatures at the Gene Expression Level: A Critical Survey of Transcriptomic Studies
title_full_unstemmed Maize Response to Low Temperatures at the Gene Expression Level: A Critical Survey of Transcriptomic Studies
title_short Maize Response to Low Temperatures at the Gene Expression Level: A Critical Survey of Transcriptomic Studies
title_sort maize response to low temperatures at the gene expression level: a critical survey of transcriptomic studies
topic Plant Science
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7550719/
https://www.ncbi.nlm.nih.gov/pubmed/33133117
http://dx.doi.org/10.3389/fpls.2020.576941
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