Digital Gene Expression Analysis of Ponkan Mandarin (Citrus reticulata Blanco) in Response to Asia Citrus Psyllid-Vectored Huanglongbing Infection

Publication Overview
TitleDigital Gene Expression Analysis of Ponkan Mandarin (Citrus reticulata Blanco) in Response to Asia Citrus Psyllid-Vectored Huanglongbing Infection
AuthorsZhong Y, Cheng C, Jiang B, Jiang N, Zhang Y, Hu M, Zhong G
TypeJournal Article
Journal NameInternational journal of molecular sciences
Volume17
Issue7
Year2016
CitationZhong Y, Cheng C, Jiang B, Jiang N, Zhang Y, Hu M, Zhong G. Digital Gene Expression Analysis of Ponkan Mandarin (Citrus reticulata Blanco) in Response to Asia Citrus Psyllid-Vectored Huanglongbing Infection. International journal of molecular sciences. 2016; 17(7).

Abstract

Citrus Huanglongbing (HLB), the most destructive citrus disease, can be transmitted by psyllids and diseased budwoods. Although the final symptoms of the two main HLB transmission ways were similar and hard to distinguish, the host responses might be different. In this study, the global gene changes in leaves of ponkan (Citrus reticulata) mandarin trees following psyllid-transmission of HLB were analyzed at the early symptomatic stage (13 weeks post inoculation, wpi) and late symptomatic stage (26 wpi) using digital gene expression (DGE) profiling. At 13 wpi, 2452 genes were downregulated while only 604 genes were upregulated in HLB infected ponkan leaves but no pathway enrichment was identified. Gene function analysis showed impairment in defense at the early stage of infection. At late stage of 26 wpi, however, differentially expressed genes (DEGs) involved in carbohydrate metabolism, plant defense, hormone signaling, secondary metabolism, transcription regulation were overwhelmingly upregulated, indicating that the defense reactions were eventually activated. The results indicated that HLB bacterial infection significantly influenced ponkan gene expression, and a delayed response of the host to the fast growing bacteria might be responsible for its failure in fighting against the bacteria.

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Properties
Additional details for this publication include:
Property NameValue
Publication ModelElectronic
ISSN1422-0067
eISSN1422-0067
Publication Date2016
Journal AbbreviationInt J Mol Sci
ElocationE1063
LanguageEnglish
Language AbbrENG
Publication TypeJournal Article