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Genome-wide profiling of long non-coding RNA of the rice blast fungus Magnaporthe oryzae during infection
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 Authours
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Gobong Choi1, Jongbum Jeon1,2,3, Hyunjun Lee4, Shenxian Zhou4 and Yong‑Hwan Lee1,2,4,5 |
| Title |
Genome-wide profiling of long non-coding RNA of the rice blast fungus Magnaporthe oryzae during infection |
| Journal |
BMC GENOMICS, 2022 (23) ~ |
Abstract
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Background
Long non-coding RNAs (lncRNAs) play essential roles in developmental processes and disease development at the transcriptional and post-transcriptional levels across diverse taxa. However, only few studies have profiled fungal lncRNAs in a genome-wide manner during host infection.
Results
Infection-associated lncRNAs were identified using lncRNA profiling over six stages of host infection (e.g., vegetative growth, pre-penetration, biotrophic, and necrotrophic stages) in the model pathogenic fungus, Magnaporthe oryzae. We identified 2,601 novel lncRNAs, including 1,286 antisense lncRNAs and 980 intergenic lncRNAs. Among the identified lncRNAs, 755 were expressed in a stage-specific manner and 560 were infection-specifically expressed lncRNAs (ISELs). To decipher the potential roles of lncRNAs during infection, we identified 365 protein-coding genes that were associated with 214 ISELs. Analysis of the predicted functions of these associated genes suggested that lncRNAs regulate pathogenesis-related genes, including xylanases and effectors.
Conclusions
The ISELs and their associated genes provide a comprehensive view of lncRNAs during fungal pathogen-plant interactions. This study expands new insights into the role of lncRNAs in the rice blast fungus, as well as other plant pathogenic fungi. |
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