维普中文期刊产品整合服务
243篇 您的检索式:作者名="Du Zhen"
    题名 作者 年代 出处 被引量
1Suppression of Jasmonic Acid-Mediated Defense by Viral-Inducible MicroRNA319 Facilitates Virus Infection in Rice显示文摘MicroRNAs (miRNAs ) 是植物开发和主人病毒相互作用的枢轴的调节的人。然而,角色和涉及病毒的感染和主人危险性的特定的 miRNAs 的行动模式仍然保持大部分不清楚。在这研究,我们给那瑞斯看引起 miR319 的增加的累积,但是减少的破旧绝技病毒(RRSV ) 感染调整 miR319 的 TCP (TEOSINTE BRANCHED/CYCLOIDEA/PCF ) 的表示基因,特别 TCP21,在米饭植物。转基因的米饭植物 overexpressing miR319 或 downregulating TCP21 展出了像疾病的显型并且与野类型的植物比较显示出显著地更高的危险性到 RRSV。相反,仅仅温和的疾病症状在感染 RRSV 的线 overexpressing TCP21 并且特别在转基因的植物 overexpressing 被观察 miR319 抵抗的 TCP21。miR319 的 RRSV 感染和 overexpression 在米饭与 JA 生合成和信号相关的基因的 downregulated 表示一起引起了减少的内长的 jasmonic 酸(JA ) 层次。然而,有甲基 jasmonate 的米饭植物的治疗减轻了 RRSV 引起并且减少了病毒累积的疾病症状。一起拿,我们的结果建议由在米饭的 RRSV 感染的 miR319 的正式就职压制调停 JA 的防卫便于病毒感染和症状开发。Chao Zhang Zuomei Ding Kangcheng Wu Liang Yang Yang Li Zhen Yang Shan Shi Xiaojuan Liu Shanshan Zhao Zhirui Yang Yu Wang Luping Zheng Juan Wei Zhenguo Du Aihong Zhang Hongqin Miao Yi Li Zujian Wu Jianguo Wu 2016Molecular Plant2016,9,9:27
2Current status of diagnosis and treatment of bladder cancer in China-Analyses of Chinese Bladder Cancer Consortium database显示文摘Objective:To investigate current status of diagnosis and treatment of bladder cancer in China.Methods:A database was generated by Chinese Bladder Cancer Consortium(CBCC).From January 2007 to December 2012,14,260 cases from 44 CBCC centers were included.Data of diagnosis,treatment and pathology were collected.Results:The average age was 63.5 year-old and most patients were male(84.3%).The most common histologic types were urothelial carcinoma(91.4%),adenocarcinoma(1.8%),and squamous carcinoma(1.9%).According to 1973 and 2004 WHO grading system,42.0%,41.0%,and 17.0% of patients were grade 1,2,and 3,and 16.0%,48.7%,and 35.3% of patients were papillary urothelial neoplasms of low malignant potential,low,and high grade,respectively.Non-muscle invasive bladder cancer(NMIBC)and muscle invasive bladder cancer(MIBC)were 25.2% and 74.1%,respectively(0.8% not clear).Carcinoma in situ was only 2.4%.Most patients were diagnosed by white-light cystoscopy with biopsy(74.3%).Fluorescence and narrow band imaging cystoscopy had additional detection rate of 1.0% and 4.0%,respectively.Diagnostic transurethral resection(TUR)provided detection rate of 16.9%.Most NMIBCs were treated with TUR(89.2%).After initial TUR,2.6%accepted second TUR,and 45.7%,69.9%,and 58.7% accepted immediate,induced,and maintenance chemotherapy instillation,respectively.Most MIBCs were treated with radical cystectomy(RC,59.7%).Laparoscopic RCs were 35.1%,while open RC 63.4%.Extended and standard pelvic lymph node dissection were 7% and 66%,respectively.Three most common urinary diversions were orthotopic neobladder(44%),ileal conduit(31%),and ureterocutaneostomy(23%).Only 2.3% of patients accepted neo-adjuvant chemotherapy and only 18%of T3 and T4 patients accepted adjuvant chemotherapy.Conclusion:Disease characteristics are similar to international reports,while differences of diagnosis and treatment exist.This study can provide evidences for revisions of the guideline on bladder cancer in China.Kaiwen Li Tianxin Lin Wei Xue Xin Mu Enci Xu Xu Yang Fubao Chen Guangyong Li Lulin Ma Guoliang Wang Chaozhao Liang Haoqiang Shi Ming Li Mao Tang Xueyi Xue Yisong Lv Yaoliang Deng Chengyang Li Zhiwen Chen Xiaozhou Zhou Fengshuo Jin Xudong Liu Jinxin Wei Lei Shi Xin Gou Weiyang He Liqun Zhou Lin Cai Baiye Jin Guanghou Fu Xiangbo Kong Hongyan Sun Ye Tian Lang Feng Tiejun Pan Yiyi Wu Dongwen Wang Hailong Hao Benkang Shi Yaofeng Zhu Qiang Wei Ping Han Changli Wu Dawei Tian Zhangqun Ye Zheng Liu Zhiping Wang Junqiang Tian Lin Qi Minfeng Chen Wei Li Jinchun Qi Gongxian Wang Longlong Fu Zhaolin Sun Guangheng Luo Zhoujun Shen Zhaowei Zhu Jinchun Xing Zhun Wu Dong Wei Xin Chen Yanqun Na Hongfeng Guo Chunxi Wang Zhihua Lu Chuize Kong Yang Liu Jin Yang Jianyun Hu Xin Gao Jielin Li Changjun Yin Pu Li Shan Chen Zhen Du Jiongming Li Yongji Yan Xu Zhang Shuang Huang Fangjian Zhou Zhiling Zhang Yinghao Sun Shuxiong Zeng Song Cen Jiaquan Zhou Hanzhong Li Jin Wen Jian Huang 2015Asian Journal of Urology2015,2,2:21
3The ChinaMAP analytics of deep whole genome sequences in 10,588 individuals显示文摘Metabolic diseases are the most common and rapidly growing health issues worldwide.The massive population-based human genetics is crucial for the precise prevention and intervention of metabolic disorders.The China Metabolic Analytics Project(ChinaMAP)is based on cohort studies across diverse regions and ethnic groups with metabolic phenotypic data in China.Here,we describe the centralized analysis of the deep whole genome sequencing data and the genetic bases of metabolic traits in 10,588 individuals from the ChinaMAP.The frequency spectrum of variants,population structure,pathogenic variants and novel genomic characteristics were analyzed.The individual genetic evaluations of Mendelian diseases,nutrition and drug metabolism,and traits of blood glucose and BMI were integrated.Our study establishes a large-scale and deep resource for the genetics of East Asians and provides opportunities for novel genetic discoveries of metabolic characteristics and disorders.Yanan Cao Lin Li Min Xu Zhimin Feng Xiaohui Sun Jieli Lu Yu Xu Peina Du Tiange Wang Ruying Hu Zhen Ye Lixin Shi Xulei Tang Li Yan Zhengnan Gao Gang Chen Yinfei Zhang Lulu Chen Guang Ning Yufang Bi Weiqing Wang The ChinaMAP Consortium 2020Cell Research2020,30,9:20
4p53 upregulated by HIF-la promotes hypoxiainduced G2/M arrest and renal fibrosis in vitro and in vivo显示文摘Hypoxia plays an important role in the genesis and progression of renal fibrosis.The underlying mechanisms, however, have not been sufficiently elucidated. We examined the role of p53 in hypoxia-induced renal fibrosis in cell culture (human and rat renal tubular epithelial cells) and a mouse unilateral ureteral obstruction (UUO) model. Cell cycle of tubular cells was determined by flow cytometry, and the expression of profibrogenic factors was determined by RT-PCR, immunohistochemistry, and western blotting. Chromatin immunoprecipitation and luciferase reporter experiments were performed to explore the effect of HIF-lα on p53 expression. We showed that, in hypoxic tubular cells, p53 upregulation suppressed the expression of CDK1 and cyclins Bl and DI, leading to cell cycle (G2/M) arrest (or delay) and higher expression of TGF-β, CTGF, collagens, and fibronectin. p53 suppression by siRNA or by a specific p53 inhibitor (PIF-α) triggered opposite effects preventing the G2/M arrest and profibrotic changes. In vivo experiments in the UUO model revealed similar antifibrotic results following intraperitoneal administration of PIF-α(2.2 mg/kg). Using gain-of-function, loss-of-function, and luciferase assays, we further identified an HRE3 region on the p53 promoter as the HIF-lα-binding site. The HIF-la-HRE3 binding resulted in a sharp transcriptional activation of p53. Collectively, we show the presence of a hypoxia-activated, p53-responsive profibrogenic pathway in the kidney. During hypoxia, p53 upregulation induced by HIF-la suppresses cell cycle progression, leading to the accumulation of G2/M cells, and activates profibrotic TGF-β and CTGF-mediated signaling pathways, causing extracellular matrix production and renal fibrosis.Limin Liu Peng Zhang Ming Bai Lijie He Lei Zhang Ting Liu Zhen Yang Menglu Duan Minna Liu Baojian Liu Rui Du Qi Qian Shiren Sun 2019Journal of Molecular Cell Biology2019,11,5:18
5Inhibiting heme oxygenase-1 attenuates rat liver fibrosis by removing iron accumulation显示文摘AIM:To investigate the effects of the heme oxygenase(HO)-1/carbon monoxide system on iron deposition and portal pressure in rats with hepatic fibrosis induced by bile duct ligation(BDL).METHODS:Male Sprague-Dawley rats were divided randomly into a Sham group,BDL group,Fe group,deferoxamine(DFX) group,zinc protoporphyrin(ZnPP) group and cobalt protoporphyrin(CoPP) group.The levels of HO-1 were detected using different methods.The serum carboxyhemoglobin(COHb),iron,and portal vein pressure(PVP) were also quantified.The plasma and mRNA levels of hepcidin were measured.Hepatic fibrosis and its main pathway were assessed using Van Gieson's stain,hydroxyproline,transforming growth factor-β1(TGF-β1),nuclear factor-E2-related factor 2(Nrf2),matrix metalloproteinase-2(MMP-2) and tissue inhibitor of metalloproteinase-1(TIMP-1).RESULTS:Serum COHb and protein and mRNA expression levels of HO-1 and Nrf2 were increased in the BDL group compared with the Sham group and were much higher in the CoPP group.The ZnPP group showed lower expression of HO-1 and Nrf2 and lower COHb.The levels of iron and PVP were enhanced in the BDL group but were lower in the ZnPP and DFX groups and were higher in the CoPP and Fe groups.Hepcidin levels were higher,whereas superoxide dismutase levels were increased and malonaldehyde levels were decreased in the ZnPP and DFX groups.The ZnPP group also showed inhibited TGF-β1 expression and regulated TIMP-1/MMP-2 expression,as well as obviously attenuated liver fibrosis.CONCLUSION:Reducing hepatic iron deposition and CO levels by inhibiting HO-1 activity though the Nrf2/Keap pathway could be helpful in improving hepatic fibrosis and regulating PVP.Qiu-Ming Wang Jian-Ling Du Zhi-Jun Duan Shi-Bin Guo Xiao-Yu Sun Zhen Liu 2013World Journal of Gastroenterology2013,19,19:14
6Lack of Efficacy of Ulinastatin Therapy During Cardiopulmonary Bypass Surgery显示文摘Yan Qiu Jing Lin Yang Yang Jing Zhou Li-Na Gong Zhen Qin Lei Du 2015Chinese Medical Journal2015,,23:13
7Mechanisms responsible for the effect of median nerve electrical stimulation on traumatic brain injuryinduced coma: orexin-A-mediated N-methyl-Daspartate receptor subunit NR1 upregulation显示文摘Electrical stimulation of the median nerve is a noninvasive technique that facilitates awakening from coma. In rats with traumatic brain injury-induced coma, median nerve stimulation markedly enhances prefrontal cortex expression of orexin-A and its receptor, orexin receptor 1. To further understand the mechanism underlying wakefulness mediated by electrical stimulation of the median nerve, we evaluated its effects on the expression of the N-methyl-D-aspartate receptor subunit NR1 in the prefrontal cortex in rat models of traumatic brain injury-induced coma, using immunohistochemistry and western blot assays. In rats with traumatic brain injury, NR1 expression increased with time after injury. Rats that underwent electrical stimulation of the median nerve(30 Hz, 0.5 ms, 1.0 m A for 15 minutes) showed elevated NR1 expression and greater recovery of consciousness than those without stimulation. These effects were reduced by intracerebroventricular injection of the orexin receptor 1 antagonist SB334867. Our results indicate that electrical stimulation of the median nerve promotes recovery from traumatic brain injury-induced coma by increasing prefrontal cortex NR1 expression via an orexin-A-mediated pathway.Zhen Feng Qing Du 2016Neural Regeneration Research2016,11,6:13
8Long Distance Transmission of SARS-CoV-2 from Contaminated Cold Chain Products to Humans——Qingdao City,Shandong Province,China,September 2020显示文摘Summary What is already known about this topic?Though coronavirus disease 2019(COVID-19)has largely been controlled in China,several outbreaks of COVID-19 have occurred from importation of cases or of suspected virus-contaminated products.Though several outbreaks have been traced to severe acute respiratory syndrome coronavirus 2(SARS-CoV-2)isolated on the outer packaging of cold chain products,live virus has not been obtained.Huilai Ma Zhaoguo Wang Xiang Zhao Jun Han Yong Zhang Hong Wang Cao Chen Ji Wang Fachun Jiang Jie Lei Jingdong Song Shaofeng Jiang Shuangli Zhu Huihui Liu Dongyan Wang Yao Meng Naiying Mao Yanhai Wang Zhen Zhu Zhixiao Chen Bingling Wang Qinqin Song Haijun Du Qun Yuan Dong Xia Zhiqiang Xia Peipei Liu Yuchao Wu Zijian Feng Ruqin Gao George F.Gao Wenbo Xu 2021China CDC weekly2021,3,30:13
9Cloning and Characterization of a Differentially Expressed Phenylalanine Ammonialyase Gene (liPAL) After Genome Duplication from Tetraploid Isatis indigotica Fort.显示文摘Bei-Bei Lu Zhen Du Ru-Xian Ding LeiZhang Xiao-Jing Yu Cheng-Hong Liu Wan-Sheng Chen 2006Journal of Integrative Plant Biology2006,48,12:13
10Dapper1 promotes autophagy by enhancing the Beclinl -Vps34-Atg14L complex formation显示文摘Benvu Ma Weipeng Cao Wenxia Li Chan Gao Zhen Qi Yan Zhao Jun Du Hua Xue Junya Peng Jun Wen Hua Chen Yuanheng Ning Lei Huang Hong Zhang Xiang Gao Li Yu Ye-Guang Chen 2014Cell Research2014,24,8:12
11Genome editing with CRISPR/Cas9 in postnatal mice corrects PRKAG2 cardiac syndrome显示文摘PRKAG2 心脏的症候群正染色体的主导的继承疾病在编码 γ 的 PRKAG2 基因从变化被结果;激活安培的蛋白质 kinase 的 2 规章的子单元。影响病人通常开发室的 tachyarrhythmia 并且经历对医疗倔强并且要求心脏的移植的进步的心失败。在这研究,我们与家庭 Wolff-Parkinson-White 症候群从病人在 PRKAG2 识别一个 H530R 变化。由产生转基因的 H530R PRKAG2 和敲门在里面老鼠,我们证明两个模型包括心脏的肥大和肝糖存储概括人的症状,证实 H530R 变化是有原因地与 PRKAG2 有关心脏的症候群。我们进一步联合联系 adeno 的 virus-9 (AAV9 ) 和 CRISPR/Cas9 编辑基因的系统当让野类型的等位基因未经触动时,破坏编码 H530R 的变异的 PRKAG2 等位基因。在出生后的白天的 AAV9-Cas9/sgRNA 的单个全身的注射 4 或白天 42 实质地在转基因的 H530R PRKAG2 和敲门在里面鼠标恢复心的形态学和函数。一起,我们的工作建议在 vivo CRISPR/Cas9,染色体编辑由有选择地破坏引起疾病的变化是在 PRKAG2 心脏的症候群和另外的主导的继承心脏病的治疗的一个有效工具。Chang Xie Ya-Ping Zhang Lu Song Jie Luo Wei Qi Jialu Hu Danbo Lu Zhen Yang Jian Zhang Jian Xiao Bin Zhou Jiu-Lin Du Naihe Jing Yong Liu Yan Wang Bo-Liang Li Bao-Liang Song Yan Yan 2016Cell Research2016,26,10:12
12Piglets cloned from induced pluripotent stem cells显示文摘Nana Fan Jijun Chen Zhouchun Shang Hongwei Dou Guangzhen Ji Qingjian Zou Lu Wu Lixiazi He Fang Wang Kai Liu Na Liu Jianyong Han Qi Zhou Dengke Pan Dongshan Yang Bentian Zhao Zhen Ouyang Zhaoming Liu Yu Zhao Lin Lin Chongming Zhong Quanlei Wang Shouqi Wang Ying Xu Jing Luan Yu Liang Zhenzhen Yang Jing Li Chunxia Lu Gabor Vajta Ziyi Li Hongsheng Ouyang Huayan Wang Yong Wang Yang Yang Zhonghua Liu Hong Wei Zhidong Luan Miguel A Esteban Hongkui Deng Huanming Yang Duanqing Pei Ning Li Gang Pei Lin Liu Yutao Du Lei Xiao Liangxue Lai 2013Cell Research2013,23,1:12
13Genome-Wide Analysis of Histone Modifications: H3K4me2, H3K4me3, H3K9ac, and H3K27ac in Oryza sativa L. Japonica显示文摘当以前的研究证明了 histone 修正能由调整基因抄写影响工厂生长和开发时,在这些修正和基因表示之间的关系的知识仍然是有限的。这研究使用了高产量的定序跟随的染色质 immunoprecipitation (ChIP-Seq ) ,到调查四 histone 修正的染色体宽的分发:H3K4 (H3K4me2 和 H3K4me3 ) 和在 Oryza sativa L 的 H3K9 和 H3K27 (H3K9ac 和 H3K27ac ) 的 acylation 的 di 和 trimethylation。装饰用的梨树。由分析出版 DNase-Seq 数据,这研究探索了 DNase 过分敏感(DH ) 沿着米饭染色体的地点。histone 标记主要在通用区域出现了并且在基因的抄写开始地点(TSS ) 附近被充实。这分析证明四 histone 修正和 DH 地点都与活跃抄写被联系。而且,四 histone 修正与答应被用来在米饭基因注解预言失踪的基因的特征的抄本 regionsa 是高度并发的。预言被试验性地证实二的抄写预言了失踪的基因进一步验证。而且,顺序主题分析被构造以便识别 DH 地点和许多通常认为的抄写因素绑定地点。Zhou Du Hui Li Qiang Wei Xin Zhao Chunchao Wang Qilin Zhu Xin Yi Wenying Xua X. Shirley Liu Weiwei Jin Zhen Su 2013Molecular Plant2013,6,5:8
14Presenilin 2 deficiency facilitates Aβ-induced neuroinflammation and injury by upregulating P2X7 expression显示文摘Accumulating evidence suggests that β-amyloid (Aβ)-induced neuroinflammation plays a prominent and early role in Alzheimer’s disease (AD). In this study, we demonstrated that Presenilin 2 (PS2) deficiency facilitates Aβ-induced neuroinflammation and injury by upregulating P2X7 expression both in vitro and in vivo. PS2 knockout mice demonstrated increased cognitive impairments and cerebral injury. PS2 deficiency increased the expression of P2X7 both in neurons and microglial cells.Furthermore, extracellular ATP also increased in both Aβ-treated and untreated PS2 knockout microglial cells. Notably, Aβ-induced classical proinflammatory cytokines such as IL-1β, IL-1α and TNF-α were increased in PS2 knockout microglial cells, suggesting a potential role for PS2 in the regulation of neuroinflammation. The expression of P2X7 clearly increased in PS2 knockdown BV2 cells. Consistent with in vivo data, Aβ-induced IL-1β production was also clearly enhanced in PS2 knockdown BV2 cells. Additionally, expression of the transcription factor Sp1 was increased in PS2 knockdown cells. When we treated PS2 knockdown cells with the specific Sp1 inhibitor MIT, we observed that enhanced P2X7 expression was significantly rescued. Taken together, these data suggests that PS2 plays a protective role during Aβ-induced neuroinflammation and injury through down-regulation of P2X7 expression.Juliang Qin Xiaoyu Zhang Ziqiang Wang Jinju Li Zhen Zhang Liangcai Gao Hua Ren Min Qian Bing Du 2017Science China(Life Sciences)2017,60,2:7
15CONTINUUM TOPOLOGY OPTIMIZATION FOR MONOLITHIC COMPLIANT MECHANISMS OF MICRO-ACTUATORS显示文摘为分布式的顺从的机制的结构的拓扑学优化的一个多客观的计划处于 MEMS 状况微致动器在这个工作,机械灵活性和结构的僵硬在是看作客观功能的两个被介绍。这样开发的 Thecompliant 微观机构不能仅仅提供足够的产量工作而且有足够的刚硬抵抗反应力量并且当保持 thework 片时,维持它的形状。过滤途径的密度也被建议绞链在产生 mechanisms.SIMP 发生消除象棋盘,连接的网孔相关性和一个节点那样的数字不稳定性被用作插值计划显示材料模量的依赖调整 onelement 的密度。顺序的凸的编程方法例如动人的渐近线(MMA ) 的方法,被用来解决优化问题。介绍方法论的确认被一个典型数字例子表明。Luo Zhen Du Yixian Chen Liping Yang Jingzhou Karim Abdel-Malek 2006Acta Mechanica Solida Sinica2006,19,1:6
16Detection of k-ras gene point mutation in fine needle aspiration and pancreatic juice by sequence special primer method and its clinical significance显示文摘INTRODUCTIONThe point mutation rate of k-ras gene at codon 12 inpancreatic adenocarcinoma is reported to be as highas 90%,and with no mutations in normalpancreas tissues or other pancreatic disorders.Wehave detected the presence of k-ras geneXun Liang Liu Cun Cai Dai Yi Miao Jing Hui Du Zhao Song Zhang Shu Zhen Chen 2000World Journal of Gastroenterology2000,6,6:6
17A Systematic Assessment of Blood Lead Level in Children and Associated Risk Factors in China显示文摘In this study, we searched multiple databases for all relevant original articles (1996-2013). To investigate blood lead levels (BLL) and possible risk factors for lead exposure among children in China A total of 388 articles met our inclusion criteria. The overall geometric mean (GM) BLL was 71 IJ.g/L, and the prevalence of elevated BLL (EBLL, defined as BLL 〉_100 Ixg/L) was l&.4&% among children. The prevalence of EBLL remained significantly higher among boys. In children less than 6 years of age, there were significantly increasing trends in both BLL and prevalence of EBLL in an age-dependent manner. The ban on leaded gasoline significantly reduced the BLL as well as EBLL prevalence; however, children whose parents had lower educational levels or were exposed to lead in the workplace had a higher EBLL prevalence. Despite its decline over time, the average BLL among children in China remains higher than the average level most recently reported in the United States. Childhood lead poisoning remains a public health problem in China.WANG Lu LI Zhen HUANG Shao Xin DU Chuang WANG Hong HE Li Ping BI Yong Yi SHI Yong WANG Chun Hong 2015Biomedical and Environmental Sciences2015,28,8:6
18Fluorescent co-localization of PTS1 and PTS2 and its application in analysis of the gene function and the peroxisomal dynamic in Magnaporthe oryzae显示文摘The peroxisomal matrix proteins involved in many important biological metabolism pathways in eukaryotic cells are encoded by nucleal genes, synthesized in the cytoplasm and then transported into the organelles. Targeting and import of these proteins depend on their two peroxisomal targeting signals (PTS1 and PTS2) in sequence as we have known so far. The vectors of the fluorescent fusions with PTS, i.e., green fluorescence protein (GFP)-PTS1, GFP-PTS2 and red fluorescence protein (RFP)-PTS1, were constructed and introduced into Magnaporthe oryzae Guy11 cells. Transformants containing these fusions emitted fluorescence in a punctate pattern, and the locations of the red and green fluorescence overlapped exactly in RFP-PTS1 and GFP-PTS2 co-transformed strains. These data indicated that both PTS1 and PTS2 fusions were imported into peroxisomes. A probable higher efficiency of PTS1 machinery was revealed by comparing the fluorescence backgrounds in GFP-PTS1 and GFP-PTS2 transformants. By introducing both RFP-PTS1 and GFP-PTS2 into Δmgpex6 mutants, the involvement of MGPEX6 gene in both PTS1 and PTS2 pathways was proved. In addition, using these transformants, the inducement of peroxisomes and the dynamic of peroxisomal number during the pre-penetration processes were investigated as well. In summary, by the localization and co-localization of PTS1 and PTS2, we provided a useful tool to evaluate the biological roles of the peroxisomes and the related genes.Jiao-yu WANG Xiao-yan WU Zhen ZHANG Xin-fa DU Rong-yao CHAI Xiao-hong LIU Xue-qin MAO Hai-ping QIU Yan-li WANG Fu-cheng LIN Guo-chang SUN 2008Journal of Zhejiang University-Science B(Biomedicine & Biotechnology)2008,9,10:6
19De novo assembly and comparative analysis of root transcriptomes from different varieties of Panax ginseng C. A. Meyer grown in different environments显示文摘Panax ginseng C. A. Meyer is an important traditional herb in eastern Asia. It contains ginsenosides, which are primary bioactive compounds with medicinal properties. Although ginseng has been cultivated since at least the Ming dynasty to increase production, cultivated ginseng has lower quantities of ginsenosides and lower disease resistance than ginseng grown under natural conditions. We extracted root RNA from six varieties of fifth-year P. ginseng cultivars representing four different growth conditions, and performed Illumina paired-end sequencing. In total, 163,165,706 raw reads were obtained and used to generate a de novo transcriptome that consisted of 151,763 contigs(76,336 unigenes), of which 100,648 contigs(66.3%) were successfully annotated. Differential expression analysis revealed that most differentially expressed genes(DEGs) were upregulated(246 out of 258, 95.3%) in ginseng grown under natural conditions compared with that grown under artificial conditions. These DEGs were enriched in gene ontology(GO) terms including response to stimuli and localization. In particular, some key ginsenoside biosynthesis-related genes, including HMG-Co A synthase(HMGS), mevalonate kinase(MVK), and squalene epoxidase(SE), were upregulated in wild-grown ginseng. Moreover, a high proportion of disease resistance-related genes were upregulated in wild-grown ginseng. This study is the first transcriptome analysis to compare wild-grown and cultivated ginseng, and identifies genes that may produce higher ginsenoside content and better disease resistance in the wild; these genes may have the potential to improve cultivated ginseng grown in artificial environments.ZHEN Gang ZHANG Lei DU YaNan YU RenBo LIU XinMin CAO FangRui CHANG Qi DENG Xing Wang XIA Mian HE Hang 2015Science China(Life Sciences)2015,58,11:6
20Clonal variations in nutritional components of Pinus koreansis seeds collected from seed orchards in Northeastern China显示文摘From four Korean pine(Pinus koraiensis)orchards, 60 clones were selected and analyzed for the fatty acid and amino acid components of the seeds to reveal the variations and correlations of the seed characteristics among the clonal source orchards and clones. The nutritional components of the seeds of the P. koraiensis trees exhibited rich genetic variation; the variation coefficient of the fatty acids was 2.24–66.83 %, while the variation coefficient of the amino acids was 14.70–38.88 %. Relatively high genetic-improvement potential exists for the nutritional components of the seeds. The phenotypic differentiation of the fatty acid and amino acid components reveals that variation within the population(85.18 %) was the primary source for the variation of the fatty acid components; variation among the orchards(63.08 %) was the primary source of the variation of the amino acid components. Data drawn from various clonal source orchards all showed that the seed characteristics were highly controlled by heritability(h2[ 80 %), and the seed characteristics of the P. koraiensis trees exhibited a similar genetic gain trend. The principal components were analyzed to obtain the comprehensive principal component value for each clonal seed orchard. Twelve clones were selected based on a clonal selection rate of 20 %. Correlation and multiple stepwise-regression analyses were conducted, considering different location conditions, to reveal the stable correlations between the seed characteristics to facilitate improvements of the seed yield of P.koraiensis trees and the clonal selection. Species of real characteristics in P. koraiensis were controlled by higher heritability. Genetic gain was obtained by selecting of superior clones.Zhen Zhang Hanguo Zhang Chuanping Yang Lei Zhang Jia Du Ying Jiang 2016Journal of Forestry Research2016,27,2:6
返回顶部 每页显示:
共13页 首页 上一页 第1页 下一页 末页 /13 跳转

网站首页 | 关于我们 | 联系我们 | 产品服务 | 客服中心 | 广告服务 | 版权声明 | 网站联盟 | 友情链接 | 售卡网点

版权所有© 渝B2-20050021-1 渝公网安备 50019002500403号 违法和不良信息举报中心

互联网出版许可证 新出网证(渝)字10号 全国400电话 - 免长途话费