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mRNA差异显示

mRNA差异显示的相关文献在1995年到2017年内共计250篇,主要集中在分子生物学、畜牧、动物医学、狩猎、蚕、蜂、农作物 等领域,其中期刊论文236篇、会议论文12篇、专利文献520712篇;相关期刊157种,包括石河子大学学报(自然科学版)、西北植物学报、植物学报(英文版)等; 相关会议10种,包括中国园艺学会热带南亚热带果树分会第二届学术研讨会暨全国龙眼产业发展论坛、第十次全国畜禽遗传标记研讨会、2005年工业微生物学术研讨会等;mRNA差异显示的相关文献由837位作者贡献,包括张沅、俞英、孙东晓等。

mRNA差异显示—发文量

期刊论文>

论文:236 占比:0.05%

会议论文>

论文:12 占比:0.00%

专利文献>

论文:520712 占比:99.95%

总计:520960篇

mRNA差异显示—发文趋势图

mRNA差异显示

-研究学者

  • 张沅
  • 俞英
  • 孙东晓
  • 王慧
  • 倪中福
  • 孙其信
  • 徐桂云
  • 李俊英
  • 王栋
  • 刘殿武
  • 期刊论文
  • 会议论文
  • 专利文献

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    • 朱燕飞; 陈全家; 曲延英
    • 摘要: [目的]十字花科短命植物线果芥在新疆干旱环境下生长,具有较强的抗旱性,研究十字花科短命植物线果芥的抗旱机制.为进一步了解线果芥的抗旱机理和从野生植物资源中发掘一些优异的抗逆基因奠定基础.[方法]用20% PEG6000处理3-4周的线果芥幼苗,分别提取0、3、6、9、12、24及48 h的线果芥叶片总RNA.用mRNA差异显示技术筛选差异表达的基因.[结果]使用80对引物组合共筛选获得差异片段18个,分别命名为DF1-DF18,其中表达上调的有12个,下调的有6个.按照基因的功能可以划分为6大类:基础代谢、转录因子、抗病相关、假想蛋白、未知蛋白和光周期蛋白.其中以基础代谢相关基因最多.对其中的DF-2、DF-6及DF-14进行高盐和干旱胁迫下的表达模式分析,这三个基因均受干旱和盐调控表达.[结论]从短命植物线果芥中筛选了18个抗旱相关的基因,并对其中的3个基因进行表达模式分析,的确受干旱和盐胁迫的诱导表达.%[Objective] The ephemeral species Conringia planisiliqua belongs to Brassicaceae which grows in Xinjiang arid environment,which has strong drought resistance,but its drought resistance mechanism is not clear.In order to understand the mechanism of drought resistance and discover some excellent resistance genes from wild plant resources,it has laid an important foundation for further understanding the mechanism of drought resistance in conringia planisiliqua.[Method] Using the plant that has grown for three to four weeks treated by 20% PEG6000,total RNA of the leaves at0 h,3 h,6 h,9 h,12 h,24 h and48 h was extracted.Then the differentially expressed genes were screened by mRNA differential display techniques.[Result] Eighty primer combinations were used to screen the differentially expressed cDNAs,and a total of 18 differentially expressed cDNAs were found.They were named of DF1-DF18,12 of the cDNAs were the up-regulated and 6 of them were down-regulated gene fragments.According to the gene function they were divided into 6 categories:basal metabolism,transcription factor,disease resistance protein,hypothetical protein,unknown protein and photoperiod protein.Most of them were the basal metabolism related genes.We analyzed the expression pattern of the DF-2,DF-6 and DF-14 under drought and salt stress,and the finding showed that the three genes were regulated by drought and salt.[Conclusion] Eighteen of the drought-resistant genes were screened from ephemeral plant Conringia planisiliqua.Three of the genes expression patterns were detected,they were induced by drought and salt stress.
    • 夏彦玲; 桂姗姗; 喻月婷; 敖艳霖; 曲昊淼
    • 摘要: We screened the specially expressed cDNA fragments of mesenchymal layer in different stages by mRNA differential display polymerase chain reaction ( DD-PCR ) .We chose a band displayed significantly differential expression to clone , check and analyze .The fragment ( 400 bp) had highly homology to Metastasis-associated in lung adenocarcinoma transcript 1(MALAT1) with the homology of 90%to Sus scrofa’s MALAT1.By real time RT-PCR, the expression level of MALAT1 gene in early and middle stages was higher than the expression level in late stage .The special up-regulation of MALAT1 gene in rapid growth period implied it might be an important factor in the process of growth and development of antler .%以不同生长期的鹿茸尖端组织为材料,采用mRNA差异显示技术检测不同生长期鹿茸尖端间充质组织的差异表达基因。对其中一条差异表达片段进行克隆测序分析,得到400 bp左右的片段,与野猪的非编码基因MALAT1有高度同源性,同源性为90%。进一步实时荧光定量RT-PCR鉴定发现,该基因在鹿茸生长发育的前期和中期表达量高于后期,该基因在鹿茸快速生长期的上调表达暗示其在鹿茸生长发育过程中发挥作用,是鹿茸生长发育相关基因的候选基因。
    • 梁同衍; 王丽红; 周生伟; 杜红梅; 李如江
    • 摘要: Objective To observe the specific gene expressions of islet β cells during spontaneous recovery in diabetic adult mice. Methods A diabetic adult mouse with spontaneous recovery was established. Pancreaticβcells of adult mice with recovery from diabetes were sorted by flow cytometry , then differential mRNA expressions ofβcells were analyzed among groups via mRNA differential display , and their protein expressions were determined by double immunofluorescence. Results In the process of diabetes spontaneous recovery ,12 differential expression genes were obtained from pancreatic β cells by mRNA differential display ,and AR expression inβcells was decreased significantly ,even disappeared when the diabetes was the most serious. However ,it gradually increased with recovery from diabetes ,and was in a higher level when diabetes was recovered completely (P< 0.01). Conclusion mRNA differential display is a powerful tool to study the differential gene expression in pancreaticβcells. The change of AR expression inβcells is strongly associated with an increase in the number of functional pancreatic βcells with recovery from diabetes.%目的:观察成年鼠糖尿病康自发复时胰岛β细胞特异基因的表达。方法建立自发康复糖尿病成年小鼠模型。在糖尿病自发康复过程中,以流式细胞术分选其胰岛β细胞,通过mRNA差异显示法研究胰岛β细胞基因差异表达,以免疫荧光双标显示其蛋白差异表达。结果在糖尿病自发康复过程中,以mRNA差异显示法在胰岛β细胞内共检出12个差异表达基因,其中,雄激素受体(AR)在糖尿病最严重时低表达甚至不表达,在糖尿病康复过程中表达增强,在糖尿病完全康复时高表达(P<0.01)。结论以mRNA差异显示法研究胰岛β细胞特异基因的表达切实可行。糖尿病康复时,胰岛β细胞雄激素受体表达与功能性胰岛β细胞的增多密切相关。
    • 李玮; 刘蕤; 马尧; 李金龙; 吴宏军; 刘爱荣; 俞英; 徐青; 王雅春
    • 摘要: 本研究旨在检测与牛冷应激反应相关的生化指标,筛选参与牛冷应激反应的相关基因.以内蒙古三河牛为研究对象,对30头青年牛进行室外-32°C冷应激处理3h,采集冷应激前后试验个体血样,检测血液生化指标及基因表达量的变化.冷应激3h后,试验个体T3、T4及ACTH3个血液生化指标极显著升高(P<0.01).mRNA差异显示方法(DDRT)检测到基因LIN54和KLF12在冷应激后表达量降低,荧光定量RT-PCR验证了冷应激后2个基因表达下调(LIN54下调显著(P<0.05),KLF12下调极显著(P<0.01))的结果.筛选到的2个基因分别属于LINC和KLF家族,LINC参与有丝分裂基因的活化,KLF参与细胞增殖和凋亡.T3、T4及ACTH 3项生化指标可以初步作为衡量三河牛冷应激反应强弱的侯选指标在大群体中进行验证,筛选到的2个基因,可作为参与三河牛冷应激反应的重要侯选基因,进一步研究2个基因在牛冷应激反应中的作用机制,综合这些生化指标及侯选基因表达的变化,用于评价个体冷应激反应的强度,在三河牛抗冷应激育种中将具有更广泛的应用价值.
    • 黎洁文; 赵炜; 赵树进
    • 摘要: 【目的】筛选和克隆何首乌中二苯乙烯苷代谢相关酶基因。【方法】采用mRNA差异显示技术,对何首乌中二苯乙烯苷含量差异悬殊的不同组织(根、茎、叶)进行差异表达基因的筛选,将得到的差异基因连接pMD19-T载体进行测序后,通过数据库比对预测其基因功能。【结果】发现差异片段51条,选取其中9条进行半定量PCR验证,获得3条阳性差异片段。其中1条阳性片段为何首乌茎和叶特异表达,与甘氨酸脱氢酶高度同源,另外2条阳性片段为何首乌块根特异表达,分别与烯酰辅酶A水合酶、氨基肽酶N高度同源。【结论】通过mRNA差异显示技术得到的3个同源序列可为进一步研究何首乌中二苯乙烯苷生物合成途径提供帮助。%Objective To screen and clone the genes related to stilbene glucosides biosynthesis in Polygonum multiflorum Thunb. Methods The differentially expressed genes in the root, stem and leaf of Polygonum multiflorum which have different contents of stilbene glucosides were screened by differential display reverse transcription polymerase chain reaction (DDRT-PCR). After pMD19-T carrier was inserted into the obtained differential genes for sequencing and comparison, the gene function was analyzed. Results Fifty-one differentially expressed cDNA fragments were found. Of them, 9 were used for the identification by semi-quantitative PCR. The identification results presented 3 positive fragments, one fragment was specifically expressed in the stem and leaf of Polygon-um multiflorum Thunb., sharing high homology with glycine dehydrogenase, and 2 were specifically expressed in the root of Polygonum multiflorum Thunb., having high homology with enoyl-CoA hydratase and aminopeptidase N, respectively. Conclusion Three homologous gene sequences obtained through DDRT-PCR provide a basis for the further study of biosynthetic pathway of stilbene glucoside from Polygonum multiflorum Thunb..
    • 刘义富; 毛昆明
    • 摘要: 通过对100 mg/L镉(Cd)溶液和蒸馏水培养下的蓖麻幼苗mRNA差异显示的前期研究,结果表明:采用百泰克公司生产的通用植物总RNA提取试剂盒能有效地提取蓖麻叶片总RNA,通过3’端锚定引物与随机引物构成的引物对cDNA的PCR扩增,其产物的凝胶电泳共获得11条差异条带,均出现在Cd胁迫下的蓖麻中,说明100 mg/L Cd处理的蓖麻叶片在mRNA水平上发生了明显的变化,可能激发了与Cd耐性和积累相关基因的表达,其产物可能与缓解Cd对蓖麻造成伤害有关.对差异片段的进一步测序、克隆等研究,有助于蓖麻Cd耐性和积累的分子机制研究.
    • 吕盈; 吴娇娇; 付立忠; 程俊文; 张红玉; 李海波; 魏海龙; 许修宏
    • 摘要: 以庆科20、Cr02、武香1号、申香9号4个香菇菌株组配3个杂交组合获得的17个杂交子为试验材料,采用mRNA差异显示技术分析了杂交子和亲本之间液体发酵基因表达差异模式及其与杂交子胞内总糖含量、杂种优势的相关性.结果表明:香菇杂交子与亲本之间基因表达差异模式可分为4种类型:双亲表达共沉默类型(W1)、单亲表达沉默类型(W2)、杂交子特异表达类型(W3)、单亲表达一致类型(W4),4种差异表达类型所占比例分别为5.30%、10.15%、7.88%、12.05%;差异表达模式与杂交子胞内总糖含量相关分析表明,单亲基因表达沉默(W2)与胞内总糖含量呈极显著正相关,杂交子基因特异表达(W3)与胞内总糖含量呈显著负相关,双亲基因表达共沉默(W1)、单亲基因表达一致(W4)与胞内总糖含量相关不显著;差异表达模式与杂交子胞内总糖含量超亲优势相关分析表明,双亲基因表达共沉默(W1)、杂交子基因特异表达(W3)与胞内总糖含量超亲优势呈极显著正相关,单亲基因表达一致(W4)、单亲基因表达沉默(W2)与胞内多糖含量超亲优势呈显著或极显著负相关.
    • 摘要: 为研究双孢蘑菇基质降解能力退化的相关基因表达差异及分子机制,克隆了正常菌株As2796及其两个退化突变体菌株2796-3、2796-5,在mRNA差异显示(DDRT-PCR)分析中发现的5个差异基因及其上游约1200bp的调控序列,并进行了序列测定与比较。结果表明,这些基因与上游序列在三个菌株中并无实质性差异,推测该退化性状更可能是转录调控相关基因变异所引起的。
    • 吴运梅; 张丽红; 王国秀
    • 摘要: 索科线虫是一类具有很大生防潜力的昆虫(如棉铃虫等)天敌资源,但由于其体外培养尚未获得成功,阻碍了商业化生产和大规模应用,究其原因主要是体外培养的线虫不能完成雌雄性别分化.因此,研究该类线虫性别分化机制成为近年本领域的热点课题.该文以中华卵索线虫为实验材料,采用mRNA差异显示的方法,分析了中华卵索线虫性别分化关键时期雌、雄寄生后期幼线虫的基因表达差异.在雌雄线虫体内得到具有表达差异的基因片段20条.其中8条在雄虫体内特异性表达,12条在雌虫体内特异性表达.利用信息生物学技术对所分离到的差异片段进行了序列分析.其中,Ensembl分析发现4个片段与秀丽线虫X染色体具有可匹配片段,推测这些片段可能是影响中华卵索线虫性别分化的重要基因.这些结果将为后续研究提供思路.%Mermithidae, as an important natural predator of pests such as Bollworm, has great potential for natural biological control of invasive pests. Unfortunately, the in vitro culture of the nematode has not yet been successful, delaying the commercial application of this pest control method. The key reason for this failure is the inability of the worms to accomplish sex differentiation, sparking a strong interest in this process. Here, we analyzed the differences in gene expression of female and male postparasitic Ovomermis sinensis juveniles by mRNA differential display. In total, 20 gene fragments that had differential expression in male and female worms were isolated, including 8 male- and 12 female-specific ones. Bioinformatics methods were employed to analyze sequences of these fragments, in which ensembl analysis shows 4 fragments have comparable parts with C. elegence s X chromosome, we speculate those fragments are important genes which influence sex differentiation of Ovomermis sinensis, This data provides an idea for further study of the molecular mechanism of sex differentiation in mermithids.
    • 刘冬; 沙日娜; 温建勋; 王瑞; 仓明; 刘东军
    • 摘要: 卵母细胞成熟和母源型-合子型过渡过程中,存在大量基因的表达差异,使得应用mRNA差异显示(DDRT-PCR)筛选对胚胎发育起关键作用的基因成为可能.为了解牛卵母细胞成熟过程及体外受精胚胎不同发育阶段相关基因mRNA表达规律,本研究以牛生发泡(GV)期卵母细胞、体外受精获得的8细胞期胚胎和囊胚期胚胎为检测对象,利用mRNA差异显示技术筛选这三个时期mRNA表达差异基因,并用实时定量PCR分析差异基因在这三个时期以及体外成熟卵母细胞中的mRNA丰度.结果成功筛选得到5个差异片段,经测序和GenBank数据库比对分析,检索到与这5个片段有高同源性的已知基因,分别为无机焦磷酸1基因(PPA1)、ErbB2互作蛋白基因(ERBB2IP)、350 kD中心体相互作用蛋白基因(CEP350)、核糖体蛋白L27a基因(RPL27A)和Ⅱ类主要组织相容复合物下调因子基因(IK),实时定量PCR检测和SPSS统计分析结果表明,PPA1、ERBB2IP和CEP350mRNA表达量随胚胎发育进程呈不同程度的降低趋势,RPL2 7A mRNA表达量在囊胚期由降低转为升高,IK的转录物含量在囊胚期前呈波动变化,到囊胚期显著降低.本研究结果为进一步了解卵母细胞成熟对后续胚胎发育的影响以及合子基因组激活机制提供了实验依据.%The large capacity of differential expression genes during oocyte maturation and the transition from maternal to zigotic control makes it possible to screen genes playing crucial roles in embryonic development by mRNA differential display reverse transcription PCR (DDRT-PCR). In order to explore the gene expression mechanism of ire vitro maturation (FVM) of oocytes and in vitro development of pre-implantation embryos derived from in vitro fertilization (FVF) in different developmental stages in cattle, mRNA DDRT-PCR was employed to screen differential expression genes in germinal vesicle (GV) stage oocytes, 8-cell stage embryos and blastocysts. Real-time quantitative PCR (Q-PCR) was used to analyze the expression abundance of the differential expression genes in the three stages and in vitro matured M II oocytes. Five differential displayed straps were discovered by DDRT-PCR. The results of sequencing and database analysis showed that the 5 fragments were corresponding to pyrophosphatase (inorganic) 1 {PPA1), erbb2 interacting protein (ERBB2IP), restin-like (CEP350), ribosomal protein L27a (RPL27A) and IK cytokine, down-regulator of HLAII (IK), respectively. Q-PCR and SPSS statistical analysis indicated that the mRNA level of PPA1, ERBB21P and CEP350 decreased along with the procedure of embryonic development, whereas that of RPL27A turned to increase till blastocyst stage. The mRNA level of IK fluctuated before blastocyst stage and then decreased. Overall, the results of this research provide more information on effects of oocyte maturation on the following embryonic development and the mechanism of zygotic gene activation.
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