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The non-gibberellic acid-responsive semi-dwarfing gene uzu affects Fusarium crown rot resistance in barley

BACKGROUND: Studies in Arabidopsis show that DELLA genes may differentially affect responses to biotrophic and necrophic pathogens. A recent report based on the study of DELLA-producing reduced height (Rht) genes in wheat and barley also hypothesized that DELLA genes likely increased susceptibility...

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Autores principales: Chen, Guangdeng, Yan, Wei, Liu, Yaxi, Wei, Yuming, Zhou, Meixue, Zheng, You-Liang, Manners, John M, Liu, Chunji
Formato: Online Artículo Texto
Lenguaje:English
Publicado: BioMed Central 2014
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3898025/
https://www.ncbi.nlm.nih.gov/pubmed/24418007
http://dx.doi.org/10.1186/1471-2229-14-22
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author Chen, Guangdeng
Yan, Wei
Liu, Yaxi
Wei, Yuming
Zhou, Meixue
Zheng, You-Liang
Manners, John M
Liu, Chunji
author_facet Chen, Guangdeng
Yan, Wei
Liu, Yaxi
Wei, Yuming
Zhou, Meixue
Zheng, You-Liang
Manners, John M
Liu, Chunji
author_sort Chen, Guangdeng
collection PubMed
description BACKGROUND: Studies in Arabidopsis show that DELLA genes may differentially affect responses to biotrophic and necrophic pathogens. A recent report based on the study of DELLA-producing reduced height (Rht) genes in wheat and barley also hypothesized that DELLA genes likely increased susceptibility to necrotrophs but increased resistance to biotrophs. RESULTS: Effects of uzu, a non-GA (gibberellic acid)-responsive semi-dwarfing gene, on Fusarium crown rot (FCR) resistance in barley were investigated. Fifteen pairs of near isogenic lines for this gene were generated and assessed under two different temperature regimes. Similar to its impacts on plant height, the semi-dwarfing gene uzu also showed larger effects on FCR severity in the high temperature regime when compared with that in the low temperature regime. CONCLUSIONS: Results from this study add to the growing evidence showing that the effects of plant height on Fusarium resistances are unlikely related to DELLA genes but due to direct or indirect effects of height difference per se. The interaction between these two characteristics highlights the importance of understanding relationships between resistance and other traits of agronomic importance as the value of a resistance gene could be compromised if it dramatically affects plant development and morphology.
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spelling pubmed-38980252014-02-05 The non-gibberellic acid-responsive semi-dwarfing gene uzu affects Fusarium crown rot resistance in barley Chen, Guangdeng Yan, Wei Liu, Yaxi Wei, Yuming Zhou, Meixue Zheng, You-Liang Manners, John M Liu, Chunji BMC Plant Biol Research Article BACKGROUND: Studies in Arabidopsis show that DELLA genes may differentially affect responses to biotrophic and necrophic pathogens. A recent report based on the study of DELLA-producing reduced height (Rht) genes in wheat and barley also hypothesized that DELLA genes likely increased susceptibility to necrotrophs but increased resistance to biotrophs. RESULTS: Effects of uzu, a non-GA (gibberellic acid)-responsive semi-dwarfing gene, on Fusarium crown rot (FCR) resistance in barley were investigated. Fifteen pairs of near isogenic lines for this gene were generated and assessed under two different temperature regimes. Similar to its impacts on plant height, the semi-dwarfing gene uzu also showed larger effects on FCR severity in the high temperature regime when compared with that in the low temperature regime. CONCLUSIONS: Results from this study add to the growing evidence showing that the effects of plant height on Fusarium resistances are unlikely related to DELLA genes but due to direct or indirect effects of height difference per se. The interaction between these two characteristics highlights the importance of understanding relationships between resistance and other traits of agronomic importance as the value of a resistance gene could be compromised if it dramatically affects plant development and morphology. BioMed Central 2014-01-13 /pmc/articles/PMC3898025/ /pubmed/24418007 http://dx.doi.org/10.1186/1471-2229-14-22 Text en Copyright © 2014 Chen et al.; licensee BioMed Central Ltd. http://creativecommons.org/licenses/by/2.0 This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.
spellingShingle Research Article
Chen, Guangdeng
Yan, Wei
Liu, Yaxi
Wei, Yuming
Zhou, Meixue
Zheng, You-Liang
Manners, John M
Liu, Chunji
The non-gibberellic acid-responsive semi-dwarfing gene uzu affects Fusarium crown rot resistance in barley
title The non-gibberellic acid-responsive semi-dwarfing gene uzu affects Fusarium crown rot resistance in barley
title_full The non-gibberellic acid-responsive semi-dwarfing gene uzu affects Fusarium crown rot resistance in barley
title_fullStr The non-gibberellic acid-responsive semi-dwarfing gene uzu affects Fusarium crown rot resistance in barley
title_full_unstemmed The non-gibberellic acid-responsive semi-dwarfing gene uzu affects Fusarium crown rot resistance in barley
title_short The non-gibberellic acid-responsive semi-dwarfing gene uzu affects Fusarium crown rot resistance in barley
title_sort non-gibberellic acid-responsive semi-dwarfing gene uzu affects fusarium crown rot resistance in barley
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3898025/
https://www.ncbi.nlm.nih.gov/pubmed/24418007
http://dx.doi.org/10.1186/1471-2229-14-22
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