title: Virus-induced gene silencing in eggplant (Solanum melongena).
abstract: 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.
authors.affiliation: Laboratory of Fruit Biology, College of Food Science & Nutritional Engineering, China Agricultural University, Beijing 100083, China.
authors.forename: Haiping
authors.initials: H
authors.lastname: Liu
authors.forename: Daqi
authors.initials: D
authors.lastname: Fu
authors.forename: Benzhong
authors.initials: B
authors.lastname: Zhu
authors.forename: Huaxue
authors.initials: H
authors.lastname: Yan
authors.forename: Xiaoying
authors.initials: X
authors.lastname: Shen
authors.forename: Jinhua
authors.initials: J
authors.lastname: Zuo
authors.forename: Yi
authors.initials: Y
authors.lastname: Zhu
authors.forename: Yunbo
authors.initials: Y
authors.lastname: Luo
mesh_terms: D000595:Amino Acid Sequence; D003001:Cloning, Molecular; D020868:Gene Silencing; D017343:Genes, Plant; D017930:Genes, Reporter; D005822:Genetic Vectors; D008969:Molecular Sequence Data; D010942:Plant Viruses / Q000502:physiology*; D032323:Solanum melongena / Q000235:genetics*