| one publication added to basket [127765] | Inhibition of pds gene expression via the RNA interference approach in Dunaliella salina (Chlorophyta)
Sun, G.; Zhang, X.; Sui, Z.; Mao, Y. (2008). Inhibition of pds gene expression via the RNA interference approach in Dunaliella salina (Chlorophyta). Mar. Biotechnol. 10(3): 219-226. https://dx.doi.org/10.1007/s10126-007-9056-7
In: Marine Biotechnology. Springer-Verlag: New York. ISSN 1436-2228; e-ISSN 1436-2236, more
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| Keywords |
Gene expression
Dunaliella salina (Dunal) Teodoresco, 1905 [WoRMS]
Marine/Coastal |
| Authors | | Top |
- Sun, G.
- Zhang, X.
- Sui, Z.
- Mao, Y.
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| Abstract |
To investigate the potential of double-stranded RNA interferencing with gene expression in Dunaliella salina, a plasmid pBIRNAI-Dsa was constructed to express hairpin RNA (hpRNA) containing sequences homologous to phytoene desaturase gene (pds), a key gene in carotenoid biosynthesis, and transformed into D. salinaby electroporation. The relative transcription level of pds in pBIRNAI-Dsa-treated cells to nontreated cells was quantitated and the gene silencing efficiency by RNAi was evaluated via real-time polymerase chain reaction (PCR). The transcriptions of pds of the pBIRNAI-Dsa-treated group changed compared to those of the control group, and the was lowest on the 7th day, corresponding to 0.281265-fold of the relative pds control transcript; a relatively strong gene inhibition effect was therefore deduced. The transcript of pds may be modulated in a wide range, and a reduced transcription even to 28% of the normal level may be tolerated for its survival. This study shows that dsRNA-mediated genetic interference can induce sequence-specific inhibition of gene expression and pBIRNAI-Dsa can be used for transient suppression of gene expression inD. salina. The aim of this study was to exploit dsRNA-mediated gene silencing and to provide a foundation for gene function research in D. salina. |
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