Evaluation of higher plant virus resistance genes in the green alga, Chlorella variabilis NC64A, during the early phase of infection with Paramecium bursaria chlorella virus-1

详细信息    查看全文

• 作者：Janet M. Rowe^a ; ^b ; ¹ ; David D. Dunigan^a ; ^b ; Guillaume Blanc^c ; James R. Gurnon^a ; ^b ; Yuannan Xia^d ; James L. Van Etten^a ; ^b ; ^{jvanetten1@unl.edu}
• 关键词：Transcriptome ; Phycodnaviridae ; Phytoplankton ; RNA silencing ; RNA directed DNA methylation ; Post-transcriptional gene silencing
• 刊名：Virology
• 出版年：2013
• 出版时间：1 August, 2013
• 年：2013
• 卷：442
• 期：2
• 页码：101-113
• 全文大小：1016 K

文摘

With growing industrial interest in algae plus their critical roles in aquatic systems, the need to understand the effects of algal pathogens is increasing. We examined a model algal host-virus system, Chlorella variabilis NC64A and virus, PBCV-1. C. variabilis encodes 375 homologs to genes involved in RNA silencing and in response to virus infection in higher plants. Illumina RNA-Seq data showed that 325 of these homologs were expressed in healthy and early PBCV-1 infected (¡Ü60 min) cells. For each of the RNA silencing genes to which homologs were found, mRNA transcripts were detected in healthy and infected cells. C. variabilis, like higher plants, may employ certain RNA silencing pathways to defend itself against virus infection. To our knowledge this is the first examination of RNA silencing genes in algae beyond core proteins, and the first analysis of their transcription during virus infection.