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Small RNA profiling of aster yellows infected Catharanthus roseus plants

ABSTRACT: Small RNA profiling of aster yellows infected Catharanthus roseus plants

PROVIDER: PRJNA882404 | ENA |

REPOSITORIES: ENA

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Small RNA profiling of aster yellows infected Catharanthus roseus plants

Project description:Aster yellows phytoplasma strain Hyd35 (16SrI-B) in micropropagated periwinkle shoots in collection was used to produce infected plants in pots that were separated according to the diverse symptomatology i.e. phyllody and witches’ broom. Small RNA high-throughput sequencing (HTS) was then used to determine the small RNA pattern of these plants. Bioinformatics analysis revealed the presence of expression changes of different miRNA classes and the presence of phytoplasma derived small RNAs. These results could complement previous studies and serve as a starting point for small RNA omics in phytoplasma research

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Project description:Micropropagated Catharantus roseus plants infected with 'Candidatus Phytoplasma asteris' showed virescence symptoms, witches' broom symptoms, or became asymptomatic after their planting in pots. Nine plants were grouped into three categories according to these symptoms, which were then employed for investigation. The phytoplasma concentration, as determined by qPCR, correlated well with the severity of symptoms. To reveal the changes in the small RNA profiles in these plants, small RNA high-throughput sequencing (HTS) was carried out. The bioinformatics comparison of the micro (mi) RNA and small interfering (si) RNA profiles of the symptomatic and asymptomatic plants showed changes, which could be correlated to some of the observed symptoms. These results complement previous studies on phytoplasmas and serve as a starting point for small RNA-omic studies in phytoplasma research.

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A modular system regulates specialized metabolite pathway branch choice in the medicinal plant Catharanthus roseus.

Project description:This dataset belongs to a set of three RNA-Seq experiments that were carried out to study the regulation of monoterpenoid indole alkaloid production in the medicinal plant Catharanthus roseus. For this dataset, C. roseus hairy roots overexpressing the well-known MIA biosynthesis regulator ORCA3 were analyzed by RNA-Seq. As control, C. roseus hairy roots expressing GUS were used. Each analyzed sample consisted of an independent hairy root line; three hairy root lines per construct were analyzed.

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