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Genome-Wide Expression Profiling of Genes Associated with the Lr47-Mediated Wheat Resistance to Leaf Rust (Puccinia triticina).

Identifieur interne : 000108 ( Main/Exploration ); précédent : 000107; suivant : 000109

Genome-Wide Expression Profiling of Genes Associated with the Lr47-Mediated Wheat Resistance to Leaf Rust (Puccinia triticina).

Auteurs : Jiaojiao Wu [République populaire de Chine] ; Jing Gao [République populaire de Chine] ; Weishuai Bi [République populaire de Chine] ; Jiaojie Zhao [République populaire de Chine] ; Xiumei Yu [République populaire de Chine] ; Zaifeng Li [République populaire de Chine] ; Daqun Liu [République populaire de Chine] ; Bo Liu [République populaire de Chine] ; Xiaodong Wang [République populaire de Chine]

Source :

RBID : pubmed:31514396

Descripteurs français

English descriptors

Abstract

Puccinia triticina (Pt), the causal agent of wheat leaf rust, is one of the most destructive fungal pathogens threatening global wheat cultivations. The rational utilization of leaf rust resistance (Lr) genes is still the most efficient method for the control of such diseases. The Lr47 gene introgressed from chromosome 7S of Aegilops speltoides still showed high resistance to the majority of Pt races collected in China. However, the Lr47 gene has not been cloned yet, and the regulatory network of the Lr47-mediated resistance has not been explored. In the present investigation, transcriptome analysis was applied on RNA samples from three different wheat lines ("Yecora Rojo", "UC1037", and "White Yecora") carrying the Lr47 gene three days post-inoculation with the epidemic Pt race THTT. A comparison between Pt-inoculated and water-inoculated "Lr47-Yecora Rojo" lines revealed a total number of 863 upregulated (q-value < 0.05 and log2foldchange > 1) and 418 downregulated (q-value < 0.05 and log2foldchange < -1) genes. Specifically, differentially expressed genes (DEGs) located on chromosomes 7AS, 7BS, and 7DS were identified, ten of which encoded receptor-like kinases (RLKs). The expression patterns of these RLK genes were further determined by a time-scale qRT-PCR assay. Moreover, heatmaps for the expression profiles of pathogenesis-related (PR) genes and several transcription factor gene families were generated. Using a transcriptomic approach, we initially profiled the transcriptional changes associated with the Lr47-mediated resistance. The identified DEGs, particularly those genes encoding RLKs, might serve as valuable genetic resources for the improvement of wheat resistance to Pt.

DOI: 10.3390/ijms20184498
PubMed: 31514396
PubMed Central: PMC6769777


Affiliations:


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Le document en format XML

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<term>Basidiomycota (physiology)</term>
<term>Chromosomes, Plant (genetics)</term>
<term>Disease Resistance (genetics)</term>
<term>Gene Expression Regulation, Plant (MeSH)</term>
<term>Genes, Plant (MeSH)</term>
<term>Plant Diseases (microbiology)</term>
<term>Plant Leaves (microbiology)</term>
<term>Transcription Factors (metabolism)</term>
<term>Transcription, Genetic (MeSH)</term>
<term>Triticum (genetics)</term>
</keywords>
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<term>Basidiomycota (physiologie)</term>
<term>Chromosomes de plante (génétique)</term>
<term>Facteurs de transcription (métabolisme)</term>
<term>Feuilles de plante (microbiologie)</term>
<term>Gènes de plante (MeSH)</term>
<term>Maladies des plantes (microbiologie)</term>
<term>Régulation de l'expression des gènes végétaux (MeSH)</term>
<term>Résistance à la maladie (génétique)</term>
<term>Transcription génétique (MeSH)</term>
<term>Triticum (génétique)</term>
</keywords>
<keywords scheme="MESH" type="chemical" qualifier="metabolism" xml:lang="en">
<term>Transcription Factors</term>
</keywords>
<keywords scheme="MESH" qualifier="genetics" xml:lang="en">
<term>Chromosomes, Plant</term>
<term>Disease Resistance</term>
<term>Triticum</term>
</keywords>
<keywords scheme="MESH" qualifier="génétique" xml:lang="fr">
<term>Chromosomes de plante</term>
<term>Résistance à la maladie</term>
<term>Triticum</term>
</keywords>
<keywords scheme="MESH" qualifier="microbiologie" xml:lang="fr">
<term>Feuilles de plante</term>
<term>Maladies des plantes</term>
</keywords>
<keywords scheme="MESH" qualifier="microbiology" xml:lang="en">
<term>Plant Diseases</term>
<term>Plant Leaves</term>
</keywords>
<keywords scheme="MESH" qualifier="métabolisme" xml:lang="fr">
<term>Facteurs de transcription</term>
</keywords>
<keywords scheme="MESH" qualifier="physiologie" xml:lang="fr">
<term>Basidiomycota</term>
</keywords>
<keywords scheme="MESH" qualifier="physiology" xml:lang="en">
<term>Basidiomycota</term>
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<term>Genes, Plant</term>
<term>Transcription, Genetic</term>
</keywords>
<keywords scheme="MESH" xml:lang="fr">
<term>Gènes de plante</term>
<term>Régulation de l'expression des gènes végétaux</term>
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<front>
<div type="abstract" xml:lang="en">
<i>Puccinia triticina</i>
(
<i>Pt</i>
), the causal agent of wheat leaf rust, is one of the most destructive fungal pathogens threatening global wheat cultivations. The rational utilization of leaf rust resistance (
<i>Lr</i>
) genes is still the most efficient method for the control of such diseases. The
<i>Lr47</i>
gene introgressed from chromosome 7S of
<i>Aegilops speltoides</i>
still showed high resistance to the majority of
<i>Pt</i>
races collected in China. However, the
<i>Lr47</i>
gene has not been cloned yet, and the regulatory network of the
<i>Lr47</i>
-mediated resistance has not been explored. In the present investigation, transcriptome analysis was applied on RNA samples from three different wheat lines ("Yecora Rojo", "UC1037", and "White Yecora") carrying the
<i>Lr47</i>
gene three days post-inoculation with the epidemic
<i>Pt</i>
race THTT. A comparison between
<i>Pt</i>
-inoculated and water-inoculated "
<i>Lr47</i>
-Yecora Rojo" lines revealed a total number of 863 upregulated (
<i>q</i>
-value < 0.05 and log2foldchange > 1) and 418 downregulated (
<i>q</i>
-value < 0.05 and log2foldchange < -1) genes. Specifically, differentially expressed genes (DEGs) located on chromosomes 7AS, 7BS, and 7DS were identified, ten of which encoded receptor-like kinases (RLKs). The expression patterns of these
<i>RLK</i>
genes were further determined by a time-scale qRT-PCR assay. Moreover, heatmaps for the expression profiles of pathogenesis-related (
<i>PR</i>
) genes and several transcription factor gene families were generated. Using a transcriptomic approach, we initially profiled the transcriptional changes associated with the
<i>Lr47</i>
-mediated resistance. The identified DEGs, particularly those genes encoding RLKs, might serve as valuable genetic resources for the improvement of wheat resistance to
<i>Pt</i>
.</div>
</front>
</TEI>
<pubmed>
<MedlineCitation Status="MEDLINE" Owner="NLM">
<PMID Version="1">31514396</PMID>
<DateCompleted>
<Year>2020</Year>
<Month>01</Month>
<Day>30</Day>
</DateCompleted>
<DateRevised>
<Year>2020</Year>
<Month>01</Month>
<Day>30</Day>
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<Title>International journal of molecular sciences</Title>
<ISOAbbreviation>Int J Mol Sci</ISOAbbreviation>
</Journal>
<ArticleTitle>Genome-Wide Expression Profiling of Genes Associated with the
<i>Lr47</i>
-Mediated Wheat Resistance to Leaf Rust (
<i>Puccinia triticina</i>
).</ArticleTitle>
<ELocationID EIdType="pii" ValidYN="Y">E4498</ELocationID>
<ELocationID EIdType="doi" ValidYN="Y">10.3390/ijms20184498</ELocationID>
<Abstract>
<AbstractText>
<i>Puccinia triticina</i>
(
<i>Pt</i>
), the causal agent of wheat leaf rust, is one of the most destructive fungal pathogens threatening global wheat cultivations. The rational utilization of leaf rust resistance (
<i>Lr</i>
) genes is still the most efficient method for the control of such diseases. The
<i>Lr47</i>
gene introgressed from chromosome 7S of
<i>Aegilops speltoides</i>
still showed high resistance to the majority of
<i>Pt</i>
races collected in China. However, the
<i>Lr47</i>
gene has not been cloned yet, and the regulatory network of the
<i>Lr47</i>
-mediated resistance has not been explored. In the present investigation, transcriptome analysis was applied on RNA samples from three different wheat lines ("Yecora Rojo", "UC1037", and "White Yecora") carrying the
<i>Lr47</i>
gene three days post-inoculation with the epidemic
<i>Pt</i>
race THTT. A comparison between
<i>Pt</i>
-inoculated and water-inoculated "
<i>Lr47</i>
-Yecora Rojo" lines revealed a total number of 863 upregulated (
<i>q</i>
-value < 0.05 and log2foldchange > 1) and 418 downregulated (
<i>q</i>
-value < 0.05 and log2foldchange < -1) genes. Specifically, differentially expressed genes (DEGs) located on chromosomes 7AS, 7BS, and 7DS were identified, ten of which encoded receptor-like kinases (RLKs). The expression patterns of these
<i>RLK</i>
genes were further determined by a time-scale qRT-PCR assay. Moreover, heatmaps for the expression profiles of pathogenesis-related (
<i>PR</i>
) genes and several transcription factor gene families were generated. Using a transcriptomic approach, we initially profiled the transcriptional changes associated with the
<i>Lr47</i>
-mediated resistance. The identified DEGs, particularly those genes encoding RLKs, might serve as valuable genetic resources for the improvement of wheat resistance to
<i>Pt</i>
.</AbstractText>
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<Affiliation>College of Plant Protection, Biological Control Center for Plant Diseases and Plant Pests of Hebei, Hebei Agricultural University, Baoding 071000, Hebei, China. zhbwxd@hebau.edu.cn.</Affiliation>
</AffiliationInfo>
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<Agency>Young Talents Project of Hebei Education Department</Agency>
<Country></Country>
</Grant>
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<GrantID>2018YFD0200402</GrantID>
<Agency>National Key Research and Development Program of China</Agency>
<Country></Country>
</Grant>
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<Agency>National Key Research and Development Program of China</Agency>
<Country></Country>
</Grant>
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<Agency>National Natural Science Foundation of China</Agency>
<Country></Country>
</Grant>
<Grant>
<GrantID>C2018204091</GrantID>
<Agency>Provincial Natural Science Foundation of Hebei for Excellent Young Scholar</Agency>
<Country></Country>
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