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Transcriptional profiling of canker-resistant transgenic sweet orange (Citrus sinensis Osbeck) constitutively overexpressing a spermidine synthase gene.
Biomed Res Int. 2013; 2013:918136.BR

Abstract

Citrus canker disease caused by Xanthomonas citri subsp. citri (Xcc) is one of the most devastating diseases affecting the citrus industry worldwide. In our previous study, the canker-resistant transgenic sweet orange (Citrus sinensis Osbeck) plants were produced via constitutively overexpressing a spermidine synthase. To unravel the molecular mechanisms underlying Xcc resistance of the transgenic plants, in the present study global transcriptional profiling was compared between untransformed line (WT) and the transgenic line (TG9) by hybridizing with Affymetrix Citrus GeneChip. In total, 666 differentially expressed genes (DEGs) were identified, 448 upregulated, and 218 downregulated. The DEGs were classified into 33 categories after Gene ontology (GO) annotation, in which 68 genes are in response to stimulus and involved in immune system process, 12 genes are related to cell wall, and 13 genes belong to transcription factors. These genes and those related to starch and sucrose metabolism, glutathione metabolism, biosynthesis of phenylpropanoids, and plant hormones were hypothesized to play major roles in the canker resistance of TG9. Semiquantitative RT-PCR analysis showed that the transcript levels of several candidate genes in TG9 were significantly higher than in WT both before and after Xcc inoculation, indicating their potential association with canker disease.

Authors+Show Affiliations

Key Laboratory of Horticultural Plant Biology (MOE), College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan 430070, China.No affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

23509803

Citation

Fu, Xing-Zheng, and Ji-Hong Liu. "Transcriptional Profiling of Canker-resistant Transgenic Sweet Orange (Citrus Sinensis Osbeck) Constitutively Overexpressing a Spermidine Synthase Gene." BioMed Research International, vol. 2013, 2013, p. 918136.
Fu XZ, Liu JH. Transcriptional profiling of canker-resistant transgenic sweet orange (Citrus sinensis Osbeck) constitutively overexpressing a spermidine synthase gene. Biomed Res Int. 2013;2013:918136.
Fu, X. Z., & Liu, J. H. (2013). Transcriptional profiling of canker-resistant transgenic sweet orange (Citrus sinensis Osbeck) constitutively overexpressing a spermidine synthase gene. BioMed Research International, 2013, 918136. https://doi.org/10.1155/2013/918136
Fu XZ, Liu JH. Transcriptional Profiling of Canker-resistant Transgenic Sweet Orange (Citrus Sinensis Osbeck) Constitutively Overexpressing a Spermidine Synthase Gene. Biomed Res Int. 2013;2013:918136. PubMed PMID: 23509803.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Transcriptional profiling of canker-resistant transgenic sweet orange (Citrus sinensis Osbeck) constitutively overexpressing a spermidine synthase gene. AU - Fu,Xing-Zheng, AU - Liu,Ji-Hong, Y1 - 2012/12/27/ PY - 2012/07/29/received PY - 2012/09/23/revised PY - 2012/10/15/accepted PY - 2013/3/20/entrez PY - 2013/3/20/pubmed PY - 2013/11/13/medline SP - 918136 EP - 918136 JF - BioMed research international JO - Biomed Res Int VL - 2013 N2 - Citrus canker disease caused by Xanthomonas citri subsp. citri (Xcc) is one of the most devastating diseases affecting the citrus industry worldwide. In our previous study, the canker-resistant transgenic sweet orange (Citrus sinensis Osbeck) plants were produced via constitutively overexpressing a spermidine synthase. To unravel the molecular mechanisms underlying Xcc resistance of the transgenic plants, in the present study global transcriptional profiling was compared between untransformed line (WT) and the transgenic line (TG9) by hybridizing with Affymetrix Citrus GeneChip. In total, 666 differentially expressed genes (DEGs) were identified, 448 upregulated, and 218 downregulated. The DEGs were classified into 33 categories after Gene ontology (GO) annotation, in which 68 genes are in response to stimulus and involved in immune system process, 12 genes are related to cell wall, and 13 genes belong to transcription factors. These genes and those related to starch and sucrose metabolism, glutathione metabolism, biosynthesis of phenylpropanoids, and plant hormones were hypothesized to play major roles in the canker resistance of TG9. Semiquantitative RT-PCR analysis showed that the transcript levels of several candidate genes in TG9 were significantly higher than in WT both before and after Xcc inoculation, indicating their potential association with canker disease. SN - 2314-6141 UR - https://www.unboundmedicine.com/medline/citation/23509803/Transcriptional_profiling_of_canker_resistant_transgenic_sweet_orange__Citrus_sinensis_Osbeck__constitutively_overexpressing_a_spermidine_synthase_gene_ L2 - https://doi.org/10.1155/2013/918136 DB - PRIME DP - Unbound Medicine ER -