Transcriptome profiling of resistant and susceptible cavendish banana roots following inoculation with Fusarium oxysporum f. sp. cubense tropical race 4

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dc.contributor.authorLi, Chun-yu
dc.contributor.authorDeng, Gui-ming
dc.contributor.authorYang, Jing
dc.contributor.authorViljoen, Altus
dc.contributor.authorJin, Yan
dc.contributor.authorKuang, Rui-bin
dc.contributor.authorZuo, Cun-wu
dc.contributor.authorLv, Zhi-cheng
dc.contributor.authorYang, Qiao-song
dc.contributor.authorSheng, Ou
dc.contributor.authorWei, Yue-rong
dc.contributor.authorHu, Chun-hua
dc.contributor.authorDong, Tao
dc.contributor.authorYi, Gan-jun
dc.date.accessioned2012-12-13T10:14:30Z
dc.date.available2012-12-13T10:14:30Z
dc.date.issued2012-08
dc.date.updated2012-10-17T11:10:41Z
dc.descriptionThe original publication is available at http://www.biomedcentral.com/1471-2164/13/374en_ZA
dc.description.abstractAbstract Background Fusarium wilt, caused by the fungal pathogen Fusarium oxysporum f. sp. cubense tropical race 4 (Foc TR4), is considered the most lethal disease of Cavendish bananas in the world. The disease can be managed in the field by planting resistant Cavendish plants generated by somaclonal variation. However, little information is available on the genetic basis of plant resistance to Foc TR4. To a better understand the defense response of resistant banana plants to the Fusarium wilt pathogen, the transcriptome profiles in roots of resistant and susceptible Cavendish banana challenged with Foc TR4 were compared. Results RNA-seq analysis generated more than 103 million 90-bp clean pair end (PE) reads, which were assembled into 88,161 unigenes (mean size = 554 bp). Based on sequence similarity searches, 61,706 (69.99%) genes were identified, among which 21,273 and 50,410 unigenes were assigned to gene ontology (GO) categories and clusters of orthologous groups (COG), respectively. Searches in the Kyoto Encyclopedia of Genes and Genomes Pathway database (KEGG) mapped 33,243 (37.71%) unigenes to 119 KEGG pathways. A total of 5,008 genes were assigned to plant-pathogen interactions, including disease defense and signal transduction. Digital gene expression (DGE) analysis revealed large differences in the transcriptome profiles of the Foc TR4-resistant somaclonal variant and its susceptible wild-type. Expression patterns of genes involved in pathogen-associated molecular pattern (PAMP) recognition, activation of effector-triggered immunity (ETI), ion influx, and biosynthesis of hormones as well as pathogenesis-related (PR) genes, transcription factors, signaling/regulatory genes, cell wall modification genes and genes with other functions were analyzed and compared. The results indicated that basal defense mechanisms are involved in the recognition of PAMPs, and that high levels of defense-related transcripts may contribute to Foc TR4 resistance in banana. Conclusions This study generated a substantial amount of banana transcript sequences and compared the defense responses against Foc TR4 between resistant and susceptible Cavendish bananas. The results contribute to the identification of candidate genes related to plant resistance in a non-model organism, banana, and help to improve the current understanding of host-pathogen interactions.en_ZA
dc.description.versionPublishers' Versionen_ZA
dc.format.extent11 p. : ill. (some col.)
dc.identifier.citationLi, C. et al. 2012. Transcriptome profiling of resistant and susceptible Cavendish banana roots following inoculation with Fusarium oxysporum f. sp. cubense tropical race 4. BMC Genomics, 13(1), 374.en_ZA
dc.identifier.issn1471-2164 (print)
dc.identifier.issn1471-2164 (online)
dc.identifier.otherdoi:10.1186/1471-2164-13-374
dc.identifier.urihttp://hdl.handle.net/10019.1/71989
dc.language.isoen_ZAen_ZA
dc.language.rfc3066en
dc.publisherBioMed Centralen_ZA
dc.rights.holderChun-yu Li et al.; licensee BioMed Central Ltd.en_ZA
dc.rights.holderAuthors retain the copyrighten_ZA
dc.subjectBananas -- Diseases and pestsen_ZA
dc.subjectFungal diseases of plantsen_ZA
dc.subjectFusarium wilt (Panama disease)en_ZA
dc.titleTranscriptome profiling of resistant and susceptible cavendish banana roots following inoculation with Fusarium oxysporum f. sp. cubense tropical race 4en_ZA
dc.typeArticleen_ZA
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