連翹2個DIR基因的分子特征與表達分析
[Abstract]:Objective: to clone Forsythia suspensa DIR gene and analyze its molecular characteristics and expression characteristics. Methods: two full-length sequences of Forsythia suspensa DIR gene were cloned and their expression in different tissues of Forsythia suspensa and induced by methyl jasmonate was analyzed by real-time fluorescence quantitative PCR. Results: two DIR genes (FsDIR1,MF168408;FsDIR2,MF168409) were cloned and the amino acids encoded by 558 bp and 564 bp, were 185 and 187, respectively. Phylogenetic tree analysis showed that FsDIR1 belonged to DIR-a subfamily and FsDIR2 belonged to DIR-b/d subfamily. The results of real-time fluorescence quantitative PCR in different tissues of Forsythia suspensa showed that the expression of FsDIR1 and FsDIR2 was the lowest in petals and the highest in pistil. After induction with methyl jasmonate, the contents of phillyrin and phillyrin A in leaves increased, but the expression of FsDIR1 and FsDIR2 decreased significantly. Conclusion: two DIR genes of Forsythia suspensa were cloned in this study, which laid a foundation for studying the function of DIR gene in the biosynthesis of Forsythia suspensa lignans and its involvement in plant resistance.
【作者單位】: 河南中醫(yī)藥大學 呼吸疾病診療與新藥研發(fā)河南省協同創(chuàng)新中心 河南太龍藥業(yè)股份有限公司
【基金】:中央引導地方科技發(fā)展專項資金 國家自然科學基金(81603232) 河南中醫(yī)藥大學博士科研基金(BSJJ2015-13)
【分類號】:S567.19
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