Identification of Theobroma cacao genes differentially expressed during Phytophthora megakarya infection
| Autor: | Frédéric Dedieu, Michel Ducamp, Didier Paulin, Claire Lanaud, Surendra Surujdeo-Maharaj, Dominique Garcia, Xavier Sabau, Thierry Legavre, Olivier Fouet, Xavier Argout |
|---|---|
| Rok vydání: | 2015 |
| Předmět: |
Résistance génétique
Theobroma F60 - Physiologie et biochimie végétale medicine.medical_treatment Phytophthora megakarya Relation hôte pathogène Plant Science F30 - Génétique et amélioration des plantes Phytophthora megasperma Genetics medicine Expression des gènes Theobroma cacao Pathogen Gene H20 - Maladies des plantes Protease biology Inhibiteur d'enzyme Hybridation food and beverages biology.organism_classification Physiologie végétale PCR Real-time polymerase chain reaction Gène Protéase Phytophthora |
| Zdroj: | Physiological and Molecular Plant Pathology |
| ISSN: | 0885-5765 |
| DOI: | 10.1016/j.pmpp.2015.08.005 |
| Popis: | Cocoa black pod caused by Phytophthora is one of the most serious diseases affecting cocoa production. This project set out was to improve our knowledge of the molecular mechanisms involved in Theobroma cacao resistance. We performed a transcriptional screening using macroarrays containing 89 ESTs from subtractive libraries enriched with genes differentially expressed in response to T. cacao/Phytophthora interactions. A gene expression analysis revealed the induction of genes involved in stress signal transduction, general and specific defence genes and genes involved in hormone signalling pathways. RT-qPCR showed that the level expression of two genes in the resistant plant was higher during the first eight hours after pathogen inoculation. Three genes from a family encoding a protease inhibitor displayed different levels of expression depending on resistant and susceptible T. cacao clones. A comparison of promoter sequences revealed a motif present only in genes that were up-expressed in the resistant plant. |
| Databáze: | OpenAIRE |
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