Global Transcriptomic Analysis Reveals Insights into the Response of 'Etrog' Citron (Citrus medica L.) to Citrus Exocortis Viroid Infection.

ABSTRACT: Citrus exocortis viroid (CEVd) is the causal agent of citrus exocortis disease. We employed CEVd-infected 'Etrog' citron as a system to study the feedback regulation mechanism using transcriptome analysis in this study. Three months after CEVd infection, the transcriptome of fresh leaves was analyzed, and 1530 differentially expressed genes were detected. The replication of CEVd in citron induced upregulation of genes encoding key proteins that were involved in the RNA silencing pathway such as Dicer-like 2, RNA-dependent RNA polymerase 1, argonaute 2, argonaute 7, and silencing defective 3, as well as those genes encoding proteins that are related to basic defense responses. Many genes involved in secondary metabolite biosynthesis and chitinase activity were upregulated, whereas ot

SUBMITTER: Wang Y 

PROVIDER: S-EPMC6563217 | biostudies-literature | 2019 May

REPOSITORIES: biostudies-literature