title: [Expression profiles analysis of two member of squaleneepoxidase gene family from Eleutherococcus senticosus].
abstract: In order to find the characteristics of two members of gene family of squaleneexpoxidase (SE) , a quantitative real time PCR method was developed to analyze the expression of Eleutherococcus senticosus SE1 and SE2 gene from different growth periods and in different organs. The result indicated that all the expression of SE2 more than SE1 in the whole growth period and organs of E. senticosus. And in the whole growth period, expression of SE1 showed a low-high-low characteristic. Both expression of SE2 and growth period showed the same trend. The lowest content of the expression was in the roots. SE1 expression have been improved more than SE2 when treated with MeJA. The expression of E. senticosus SE1 and saponins content had significantly positive correlation (P < 0.05) and the correlation coefficients was 0. 858, while the correlation was not significant for SE2. That indicated that SE1 played a key enzyme gene in the biosynthesis of triterpenoidsaponins
authors.forename: Yue-Hong
authors.initials: YH
authors.lastname: Long
authors.forename: Fei-Fei
authors.initials: FF
authors.lastname: Li
authors.forename: Guo
authors.initials: G
authors.lastname: Yang
authors.forename: Zhao-Bin
authors.initials: ZB
authors.lastname: Xing
mesh_terms: D028001:Eleutherococcus / Q000737:chemistry / Q000201:enzymology* / Q000235:genetics / Q000254:growth & development; D018506:Gene Expression Regulation, Plant; D009195:Peroxidase / Q000235:genetics* / Q000378:metabolism; D010940:Plant Proteins / Q000235:genetics* / Q000378:metabolism; D012503:Saponins / Q000032:analysis / Q000378:metabolism*; D059467:Transcriptome
chemical_list: D010940:Plant Proteins; D012503:Saponins; D009195:Peroxidase