【摘 要】
：
Saposhnikovia divaricata is a valuable Chinese medicinal herb;the transformation from vegetative growth to reproductive growth may lead to the decrease of its pharmacological activities.Therefore,the study of bolting and flowering for Saposhnikovia divari
【机 构】
：
College of Chinese Medicinal Materials, Jilin Agricultural University, Changchun 130118, China;Resea
论文部分内容阅读
Saposhnikovia divaricata is a valuable Chinese medicinal herb;the transformation from vegetative growth to reproductive growth may lead to the decrease of its pharmacological activities.Therefore,the study of bolting and flowering for Saposhnikovia divaricata is warranted.The present study aimed to reveal differentially expressed genes (DEGs) and regularity of expression during the bolting and flowering process,and the results of this study might provide a theoretical foundation for the suppression of early bolting for future research and practical application.Three sample groups,early flowering,flower bud differentiation,and late flowering (groups A,B,and C,respectively) were selected.Transcriptomic analysis identified 67,010 annotated unigenes,among which 50,165 were differentially expressed including 16,108 in A vs B,and 17,459 in B vs C,respectively.Gene ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway functional classification analysis were performed on these differentially expressed genes,and five important pathways were significantly impacted (P ＜ 0.01):plant circadian rhythm,other glycan degradation,oxidative phosphorylation,plant hormone signal transduction,and starch and sucrose metabolism.Plant hormone signal transduction might play an important role in the bolting and flowering process.The differentially expressed indole-3-acetic acid (IAA) gene showed significant down-regulation during bolting and flowering,while the transport inhibitor response 1 (TIR1) gene showed no significant change during the bolting process.The expression of flowering related genes FLC,LYF.and AP1 also showed a greater difference at different development stages.In conclusion,we speculate that the decrease in auxin concentration is not caused by the degrading effect of TIR1 but by an alternative mechanism.
其他文献
Cardiovascular disease (CVD) is the most common cause of death in patients with non-alcoholic fatty liver disease (NAFLD).New therapeutic strategies which have the potential for slowing down the evolution of NAFLD and reducing CVD-related mortality are ur
Radix Scutellaria is widely applied to the treatment of diabetes mellitus in China.Its main bioactive constituents contain baicalin,wogonoside,oroxyloside,and their aglycones.To investigate the effect of type 2 diabetes mellitus on both pharmacokinetics a
The genus Ephedra of the Ephedraceae family contains more than 60 species of nonflowering seed plants distributed throughout Asia,America,Europe,and North Africa.These Ephedra species have medicinal,ecological,and economic value.This review aims to summar
Two new limonoids,12-ethoxynimbolinins G and H (compounds 1 and 2),and one known compound,toosendanin (Chuanliansu) (compound 3),were isolated from the bark ofMelia toosendan.Their structures were elucidated by spectroscopic analysis and X-ray techniques.
Several chemical compounds can restore pigmentation in vitiligo through mechanisms that vary according to disease etiology.In the present study,we investigated the melanogenic activity of six structurally distinct compounds,namely,scopoletin,kaempferol,ch
The steroidal saponins are one of the saponin types that exist in an unbound state and have various pharmacological activities,such as anticancer,anti-inflammatory,antiviral,antibacterial and nerves-calming properties.Cancer is a growing health problem wo
Artemisia capillaris Thunberg is a medicinal plant used as a traditional medicine in many cultures.It is an effective remedy for liver problems including hepatitis.Recent pharmacological reports have indicated that Artemisia species can exert various neur
Caesalpinia sappan L.,belonging to the family Leguminosae,is a medicinal plant that is distributed in Southeast Asia.The dried heartwood of this plant is used as a traditional ingredient of food,red dyes,and folk medicines in the treatment of diarrhea,dys
Cisplatin and other platinum-based drugs are used frequently for treatment of lung cancer.However,their clinical performance are usually limited by drug resistance or toxic effects.Carnosic acid,a polyphenolic diterpene isolated from Rosemary (Rosemarinus
Postmenopausal women,who have reduced circulating estrogen levels,are more prone to develop obesity and related metabolic diseases than premenopausal women.The absence of safe and effective treatments for postmenopausal obesity has changed the focus to na