期刊
SCIENTIFIC REPORTS
卷 6, 期 -, 页码 -出版社
NATURE PORTFOLIO
DOI: 10.1038/srep34109
关键词
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资金
- National Natural Science Foundation of China [31470431, 31100262, 31470389]
- Guangdong Natural Science Foundation [2014A030308017, 2016A030313052]
- Project of DEGP [2015KTSCX125]
- Shenzhen special funds for Bio-industry development [NYSW20140327010012]
- SRF for ROCS, SEM
Microalgae are regarded as the most promising biofuel candidates and extensive metabolic engineering were conducted but very few improvements were achieved. Long non-coding RNA (lncRNA) investigation and manipulation may provide new insights for this issue. LncRNAs refer to transcripts that are longer than 200 nucleotides, do not encode proteins but play important roles in eukaryotic gene regulation. However, no information of potential lncRNAs has been reported in eukaryotic alga. Recently, we performed RNA sequencing in Chlamydomonas reinhardtii, and obtained totally 3,574 putative lncRNAs. 1440 were considered as high-confidence lncRNAs, including 936 large intergenic, 310 intronic and 194 anti-sense lncRNAs. The average transcript length, ORF length and numbers of exons for lncRNAs are much less than for genes in this green alga. In contrast with human lncRNAs of which more than 98% are spliced, the percentage in C. reinhardtii is only 48.1%. In addition, we identified 367 lncRNAs responsive to sulfur deprivation, including 36 photosynthesis-related lncRNAs. This is the first time that lncRNAs were explored in the unicellular model organism C. reinhardtii. The lncRNA data could also provide new insights into C. reinhardtii hydrogen production under sulfur deprivation.
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