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Transcriptional profiling of the responses to infection by the false smut fungus Ustilaginoidea virens in resistant and susceptible rice varieties

文献类型： 外文期刊

作者： Yang, Chao 1 ; Li, Luoye 1 ; Feng, Aiqing 2 ; Zhu, Xiaoyuan 2 ; Li, Jianxiong 1 ;

作者机构： 1.Chinese Acad Sci, South China Bot Garden, Key Lab Plant Resources Conservat & Sustainable U, Guangzhou 510650, Guangdong, Peoples R China

2.Guangdong Acad Agr Sci, Inst Plant Protect, Guangzhou 510640, Guangdong, Peoples R China

关键词： brassinosteroid;defence responses;plant hormone;rice false smut;RNA-Seq;Ustilaginoidea virens

期刊名称：CANADIAN JOURNAL OF PLANT PATHOLOGY （ 影响因子：2.442； 五年影响因子：1.993 ）

ISSN：

年卷期：

页码：

收录情况： SCI

摘要： Rice false smut is a severe fungal disease worldwide, but the mechanisms underlying resistance to the causal agent Ustilaginoidea virens in rice remain unknown. We performed RNA-Seq to investigate the transcriptional modulation in resistant and susceptible rice varieties for the responses to U. virens infection. In total, 1405 and 1066 differentially expressed genes (DEGs) were identified in resistant 'IR28' and susceptible 'HXZ' cultivars, respectively. Gene ontology (GO) enrichment analysis revealed a set of GO terms differentially enriched in the two rice varieties. Functional analysis of DEGs showed that a large number of genes encoding secondary metabolites, flavin-containing monooxygenases and peroxidases were differentially regulated. Classification analysis of DEGs revealed that brassinosteroids may have more important roles than salicylic acid and ethylene in response to U. virens infection; the crosstalk of other hormones such as auxin, gibberellins and jasmonates may also affect U. virens infection. Our results revealed that pattern recognition, cellular metabolic changes and hormone signalling constitute a comprehensive network to manipulate the responses of host rice plant to U. virens infection

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