期刊
JOURNAL OF INTEGRATIVE PLANT BIOLOGY
卷 54, 期 6, 页码 422-429出版社
WILEY-BLACKWELL
DOI: 10.1111/j.1744-7909.2012.01102.x
关键词
Virus-induced gene silencing; tobacco rattle virus; PHYTOENE DESATURASE; Solanum melongena
资金
- National Natural Science Foundation of China [31000925]
- Ministry of Education of China [20110008120019]
- Foundation for the Authors of National Excellent Doctoral Dissertations of China [201062]
- Basic Research Universities Special Fund Operations [2010JS077]
Eggplant (Solanum melongena) is an economically important vegetable requiring investigation into its various genomic functions. The current limitation in the investigation of genomic function in eggplant is the lack of effective tools available for conducting functional assays. Virus-induced gene silencing (VIGS) has played a critical role in the functional genetic analyses. In this paper, TRV-mediated VIGS was successfully elicited in eggplant. We first cloned the CDS sequence of PDS (PHYTOENE DESATURASE) in eggplant and then silenced the PDS gene. Photo-bleaching was shown on the newly-developed leaves four weeks after agroinoculation, indicating that VIGS can be used to silence genes in eggplant. To further illustrate the reliability of VIGS in eggplant, we selected Chl H, Su and CLA1 as reporters to elicit VIGS using the high-pressure spray method. Suppression of Chl H and Su led to yellow leaves, while the depletion of CLA1 resulted in albino. In conclusion, four genes, PDS, Chl H, Su (Sulfur), CLA1, were down-regulated significantly by VIGS, indicating that the VIGS system can be successfully applied in eggplant and is a reliable tool for the study of gene function.
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