title: Tomato Whole Genome Transcriptional Response to Tetranychus urticae Identifies Divergence of Spider Mite-Induced Responses Between Tomato and Arabidopsis.
abstract: The two-spotted spider mite Tetranychus urticae is one of the most significant mite pests in agriculture, feeding on more than 1,100 plant hosts, including model plants Arabidopsis thaliana and tomato, Solanum lycopersicum. Here, we describe timecourse tomato transcriptional responses to spider mite feeding and compare them with Arabidopsis in order to determine conserved and divergent defense responses to this pest. To refine the involvement of jasmonic acid (JA) in mite-induced responses and to improve tomato Gene Ontology annotations, we analyzed transcriptional changes in the tomato JA-signaling mutant defenseless1 (def-1) upon JA treatment and spider mite herbivory. Overlay of differentially expressed genes (DEG) identified in def-1 onto those from the timecourse experiment established that JA controls expression of the majority of genes differentially regulated by herbivory. Comparison of defense responses between tomato and Arabidopsis highlighted 96 orthologous genes (of 2,133 DEG) that were recruited for defense against spider mites in both species. These genes, involved in biosynthesis of JA, phenylpropanoids, flavonoids, and terpenoids, represent the conserved core of induced defenses. The remaining tomato DEG support the establishment of tomato-specific defenses, indicating profound divergence of spider mite-induced responses between tomato and Arabidopsis.
authors: Catherine
authors: C
authors: Martel
authors: Vladimir
authors: V
authors: Zhurov
authors: Marie
authors: M
authors: Navarro
authors: Manuel
authors: M
authors: Martinez
authors: Marc
authors: M
authors: Cazaux
authors: Philippe
authors: P
authors: Auger
authors: Alain
authors: A
authors: Migeon
authors: M Estrella
authors: ME
authors: Santamaria
authors: Nicky
authors: N
authors: Wybouw
authors: Isabel
authors: I
authors: Diaz
authors: Thomas
authors: T
authors: Van Leeuwen
authors: Maria
authors: M
authors: Navajas
authors: Miodrag
authors: M
authors: Grbic
authors: Vojislava
authors: V
authors: Grbic
mesh_terms: D000818:Animals; D017360:Arabidopsis / Q000235:genetics / Q000276:immunology / Q000469:parasitology; D003517:Cyclopentanes / Q000494:pharmacology; D005419:Flavonoids / Q000378:metabolism; D020869:Gene Expression Profiling; D063990:Gene Ontology; D060434:Herbivory; D006790:Host-Parasite Interactions; D018551:Solanum lycopersicum / Q000187:drug effects / Q000235:genetics* / Q000469:parasitology; D008969:Molecular Sequence Data; D020411:Oligonucleotide Array Sequence Analysis; D054883:Oxylipins / Q000494:pharmacology; D010935:Plant Diseases / Q000469:parasitology*; D010937:Plant Growth Regulators / Q000494:pharmacology; D020005:Propanols / Q000378:metabolism; D015398:Signal Transduction; D013729:Terpenes / Q000378:metabolism; D040102:Tetranychidae / Q000502:physiology*
chemical_list: D003517:Cyclopentanes; D005419:Flavonoids; D054883:Oxylipins; D010937:Plant Growth Regulators; D020005:Propanols; D013729:Terpenes; C439395:1-phenylpropanol; C011006:jasmonic acid