Analysis of survival and hatching transcriptomes from potato cyst nematodes, Globodera rostochiensis and G. pallida. 2017

Marc-Olivier Duceppe, and Joël Lafond-Lapalme, and Juan Emilio Palomares-Rius, and Michaël Sabeh, and Vivian Blok, and Peter Moffett, and Benjamin Mimee
Agriculture and Agri-Food Canada, 430, Boulevard Gouin Saint-Jean-sur-Richelieu (Québec), J3B 3E6, Québec, Canada.

Potato cyst nematodes (PCNs), Globodera rostochiensis and G. pallida, cause important economic losses. They are hard to manage because of their ability to remain dormant in soil for many years. Although general knowledge about these plant parasitic nematodes has considerably increased over the past decades, very little is known about molecular events involved in cyst dormancy and hatching, two key steps of their development. Here, we have studied the progression of PCN transcriptomes from dry cysts to hatched juveniles using RNA-Seq. We found that several cell detoxification-related genes were highly active in the dry cysts. Many genes linked to an increase of calcium and water uptake were up-regulated during transition from dormancy to hydration. Exposure of hydrated cysts to host plant root exudates resulted in different transcriptional response between species. After 48 h of exposure, G. pallida cysts showed no significant modulation of gene expression while G. rostochiensis had 278 differentially expressed genes. The first G. rostochiensis significantly up-regulated gene was observed after 8 h and was coding for a transmembrane metalloprotease. This enzyme is able to activate/inactivate peptide hormones and could be involved in a cascade of events leading to hatching. Several known effector genes were also up-regulated during hatching.

UI MeSH Term Description Entries
D011198 Solanum tuberosum A plant species of the genus SOLANUM, family SOLANACEAE. The starchy roots are used as food. SOLANINE is found in green parts. Potatoes,Potato,Solanum tuberosums,tuberosum, Solanum,tuberosums, Solanum
D005786 Gene Expression Regulation Any of the processes by which nuclear, cytoplasmic, or intercellular factors influence the differential control (induction or repression) of gene action at the level of transcription or translation. Gene Action Regulation,Regulation of Gene Expression,Expression Regulation, Gene,Regulation, Gene Action,Regulation, Gene Expression
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D014431 Tylenchoidea A superfamily of nematodes whose members are free-living saprophytes or parasites of plants. Ova are sometimes found in human feces after ingestion of infected plants. Meloidogyne,Meloidogynes,Tylenchoideas
D016000 Cluster Analysis A set of statistical methods used to group variables or observations into strongly inter-related subgroups. In epidemiology, it may be used to analyze a closely grouped series of events or cases of disease or other health-related phenomenon with well-defined distribution patterns in relation to time or place or both. Clustering,Analyses, Cluster,Analysis, Cluster,Cluster Analyses,Clusterings
D058977 Molecular Sequence Annotation The addition of descriptive information about the function or structure of a molecular sequence to its MOLECULAR SEQUENCE DATA record. Gene Annotation,Protein Annotation,Annotation, Gene,Annotation, Molecular Sequence,Annotation, Protein,Annotations, Gene,Annotations, Molecular Sequence,Annotations, Protein,Gene Annotations,Molecular Sequence Annotations,Protein Annotations,Sequence Annotation, Molecular,Sequence Annotations, Molecular
D059467 Transcriptome The pattern of GENE EXPRESSION at the level of genetic transcription in a specific organism or under specific circumstances in specific cells. Transcriptomes,Gene Expression Profiles,Gene Expression Signatures,Transcriptome Profiles,Expression Profile, Gene,Expression Profiles, Gene,Expression Signature, Gene,Expression Signatures, Gene,Gene Expression Profile,Gene Expression Signature,Profile, Gene Expression,Profile, Transcriptome,Profiles, Gene Expression,Profiles, Transcriptome,Signature, Gene Expression,Signatures, Gene Expression,Transcriptome Profile
D019295 Computational Biology A field of biology concerned with the development of techniques for the collection and manipulation of biological data, and the use of such data to make biological discoveries or predictions. This field encompasses all computational methods and theories for solving biological problems including manipulation of models and datasets. Bioinformatics,Molecular Biology, Computational,Bio-Informatics,Biology, Computational,Computational Molecular Biology,Bio Informatics,Bio-Informatic,Bioinformatic,Biologies, Computational Molecular,Biology, Computational Molecular,Computational Molecular Biologies,Molecular Biologies, Computational
D020869 Gene Expression Profiling The determination of the pattern of genes expressed at the level of GENETIC TRANSCRIPTION, under specific circumstances or in a specific cell. Gene Expression Analysis,Gene Expression Pattern Analysis,Transcript Expression Analysis,Transcriptome Profiling,Transcriptomics,mRNA Differential Display,Gene Expression Monitoring,Transcriptome Analysis,Analyses, Gene Expression,Analyses, Transcript Expression,Analyses, Transcriptome,Analysis, Gene Expression,Analysis, Transcript Expression,Analysis, Transcriptome,Differential Display, mRNA,Differential Displays, mRNA,Expression Analyses, Gene,Expression Analysis, Gene,Gene Expression Analyses,Gene Expression Monitorings,Gene Expression Profilings,Monitoring, Gene Expression,Monitorings, Gene Expression,Profiling, Gene Expression,Profiling, Transcriptome,Profilings, Gene Expression,Profilings, Transcriptome,Transcript Expression Analyses,Transcriptome Analyses,Transcriptome Profilings,mRNA Differential Displays

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