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随机扩增多态DNA

随机扩增多态DNA的相关文献在1999年到2013年内共计122篇,主要集中在水产、渔业、畜牧、动物医学、狩猎、蚕、蜂、动物学 等领域,其中期刊论文113篇、会议论文9篇、专利文献49974篇;相关期刊74种,包括水生生物学报、遗传、中国药学杂志等; 相关会议8种,包括2010广州-东莞首届国际小型猪学术论坛、2005年全国面向新世纪的花卉研究与生产技术开发学术研讨会、中国畜牧兽医学会2004年学术年会暨第五届全国畜牧兽医青年科技工作者学术研讨会等;随机扩增多态DNA的相关文献由469位作者贡献,包括刘少军、刘筠、刘良国等。

随机扩增多态DNA—发文量

期刊论文>

论文:113 占比:0.23%

会议论文>

论文:9 占比:0.02%

专利文献>

论文:49974 占比:99.76%

总计:50096篇

随机扩增多态DNA—发文趋势图

随机扩增多态DNA

-研究学者

  • 刘少军
  • 刘筠
  • 刘良国
  • 刘萍
  • 李明云
  • 李祥龙
  • 苗永旺
  • 霍海龙
  • 霍金龙
  • 魏泓
  • 期刊论文
  • 会议论文
  • 专利文献

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    • 王茜; 边靖
    • 摘要: [目的]掌握渤海地区梭鱼种群的种质资源状况.[方法]应用随机扩增多态DNA(RAPD)技术,对梭鱼养殖群体与自然群体的遗传多样性进行了分析.[结果]从45个随机引物中选出20个扩增效果稳定的引物进行群体分析.其中,梭鱼自然群体共检出了204个扩增位点,多态位点136个,多态位点比例为66.7%;养殖群体中共检出了217个扩增位点,多态位点130个,多态位点比例为59.9%.[结论]目前梭鱼群体的遗传多样性较为丰富,人工养殖还未对其造成明显的影响.%[Objective] The research aimed to study the resources of Liza haematocheila population in Bohai Region. [Method] Using Random amplified polymorphic DNA (RAPD) , the genetic diversity of cultivated population and natural population of L. haematocheila was analyzed. [Result] 20 primers with stable amplification effects were selected from 45 random primers for population analysis. In natural population, 204 amplification sites were detected, and 136 sites were polymorphic and the percentage of polymorphic loci was 66.1%. In cultivated population, 217 amplification sites were detected, and 130 sites were polymorphic and the percentage of polymorphic loci was 59.9%. [Conclusion] At present, L haematocheila population has abundant genetic diversity and artificial cultivation hasn' t obvious effects.
    • 韩青动; 吴江立; 陈力
    • 摘要: 采用RAPD技术从40个随机引物中筛选出17个引物对张家口坝上高背鲫鱼水泉淖群体的遗传多样性进行研究,结果共检测出71个位点,其中多态位点25个,多态位点比例(P)为35.2%,平均每个引物提供的标记为4.2个;利用NTsyspc2.1软件获得该水库野生鲫鱼群体20个个体间的遗传距离,个体间遗传距离(D)在0.007 2~0.140 7之间,平均为0.063 5;个体间遗传相似系数(S)在0.859 3~0.992 8之间,平均遗传相似系数为93.65%;研究表明,张家口坝上野生高背鲫鱼群体由于环境封闭,没有外来品种引起的杂交现象,基因纯和程度较高,种群内遗传多样性低.
    • 谷玉娟; 张丽华; 傅桂莲
    • 摘要: OBJECTIVE To compare specific primer method and random amplified polymorphic DNA ( RAPD) method for identification of Velvet Antler, thus to choose a simpler method. METHODS DNA samples were extracted from sika deer antler, wild deer antler, reideer pilose antler and commercially available Velvet Antler, and then purified and amplified with specific primer amplification and RAPD amplification. RESULTS The sika deer antler, wild deer antler, reideer pilose antler and some of the commercially available Velvet Antler all showed 313 bp segment in the agarose gel with different brightness while the other commercial products did not show this segment. RAPD not only effectively showed positive and negative DNA amplification results, but also showed the difference in PCR products of sika deer antlerwild deer antler with different strip numbers and strip brightness. CONCLUSION RAPD method is more accurate and rapid and it has wide application prospect.%目的 通过鹿茸特异性引物鉴别和随机扩增多态DNA(RAPD)鉴别的比较,选择一种更简便的方法用于鉴别鹿茸.方法 采用盐析法从梅花鹿茸、马鹿茸、驯鹿茸、市售鹿茸等样品中抽提线粒体DNA,并应用试剂盒进行纯化.进行特异性引物扩增和序列测定,同时进行随机扩增多态DNA扩增.结果 梅花鹿茸,马鹿茸,驯鹿茸以及部分市售鹿茸经特异性引物扩增后均可在琼脂糖凝胶中显示313 bp片段,只是条带亮度不同.而其余市售鹿茸无扩增条带;随机扩增多态DNA不仅有效显示阳性与阴性的DNA扩增结果,而且对梅花鹿茸,马鹿茸,驯鹿茸的聚合酶链反应产物的差异,以不同的条带数目和条带亮度得以验证.结论 随机扩增多态DNA鉴别鹿茸真伪的方法更准确快捷,通过随机扩增多态DNA扩增后主条带与梅花鹿茸或马鹿茸扩增的条带大小和亮度一致,则为正品;如不一致,则为《中国药典》规定外的鹿茸或其他混淆品.这种方法对于筛选、甄别市售动物中药材,特别是名贵中药具有广阔的应用前景.
    • 陈文华; 阮瑞霞; 宣云峰; 闫磊; 王荣泉
    • 摘要: @@%用RAPD技术对广东省佛山地区、浙江省菱湖地区和江苏省吴江地区的养殖大口黑鲈3个群体进行群体遗传变异分析,结果表明,用17条随机引物对3个群体共90尾大口黑鲈的基因组DNA进行扩增,共获得123个位点,平均每条随机引物扩增出7.24个位点,多态位点比例为43.09%;佛山、菱湖、吴江养殖大口黑鲈群体内的相似系数为0.8699、0.8922、0.8780;Nei指数分别为0.1734、0.1165、0.1543;佛山与菱湖、菱湖与吴江、佛山与吴江群体间的遗传距离分别为0.1657、0.512、0.1366.这表明,3个群体都具有一定的遗传变异,其中佛山群体最高,菱湖群体最低;佛山和菱湖群体间的遗传距离最大,佛山与吴江群体的遗传距离最小,用MEGA4.0软件进行聚类分析,佛山与吴江群体首先聚在一起,后与菱湖群体聚在一起.
    • 刘宏毅; 黎明星; 肖俊; 黄愉淋; 张明; 甘西
    • 摘要: 采用RAPD标记技术对叉尾斗鱼Macropodus opercularis 5个地理群体(南宁群体、桂林群体、龙岩群体、福州群体和广州群体)的遗传多样性进行了检测。结果表明:从40个随机引物中筛选出11个有效引物,对每条叉尾斗鱼的基因组DNA进行扩增,共扩增出139条片段;各群体的多态位点比例为26.44%~40.95%,Nei基因多样性指数为0.1042~0.1457,Shannon指数为0.1543~0.2176;而总体的多态位点比例、Nei基因多样性指数和Shannon指数分别高达84.89%、0.3110和0.4606。研究表明,叉尾斗鱼的遗传变异主要来自群体间,而群体内部的遗传多样性水平较低。
    • 刘宏毅; 黎明星; 肖俊; 黄愉淋; 张明; 甘西
    • 摘要: Random amplified polymorphic DNA (RAPD) technique was employed to detect the genetic variations in paradisefish Macropodus opercularis populations distributed in five geographical colonies. In this study, 11 effective primers out of 40 random primers were selected to amplify genomic DNA, resulting in 139 repeatable RAPD bands. The 5 populations were shown to have polymorphism frequency of 26.44%-40.95% , Shannon genetic diversity index of 0. 1042-0. 1457 and Nei genetic diversity of 0.1543-0.2176. On the average, all the population showed the frequency of polymorphism of 84. 89% , Nei genetic diversity of 0. 3110 and Shannon genetic diversity index of 0.4606, indicating that the genetic variation of the paradiseliish was not from the intra-populations but from inter-populations.%采用RAPD标记技术对叉尾斗鱼Macropodus opercularis 5个地理群体(南宁群体、桂林群体、龙岩群体、福州群体和广州群体)的遗传多样性进行了检测.结果表明:从40个随机引物中筛选出11个有效引物,对每条叉尾斗鱼的基因组DNA进行扩增,共扩增出139条片段;各群体的多态位点比例为26.44%~40.95%,Nei基因多样性指数为0.1042~0.1457,Shannon指数为0.1543~0.2176;而总体的多态位点比例、Nei基因多样性指数和Shannon指数分别高达84.89%、0.3110和0.4606.研究表明,叉尾斗鱼的遗传变异主要来自群体间,而群体内部的遗传多样性水平较低.
    • 秦丹; 杨勇; 周小平; 程燕
    • 摘要: 以改进的氯化苄法抽提发酵肉制品总微生物DNA,进行随机扩增多态DNA(random amplifiedpolymorphicDNA,RAPD)分析.采用单因子梯度试验法对影响发酵肉制品微生物RAPD反应的反应体系、Mg2+浓度、dNTPs浓度、引物浓度、TaqDNA聚合酶的用量及DNA模板浓度进行了筛选.结果表明,发酵肉制品微生物RAPD扩增条件为25μLPCR反应体积中,2.5mmol/LMgCl2,0.15mmol/LdNTPs,15pmol引物,50ng模板DNA,1.0U Taq DNA聚合酶.%The total microbial DNA was extracted by the improved benzyl chloride method from fermented meat and was analyzed by random amplified polymorphic DNA (RAPD) markers. The influence of the concentration of Mg2+, dNTPs, primer, Taq DNA polymerase and the templates on RAPD-PCR reaction system were investigated by single-factor gradient test method. The optimal conditions were as follows: MgCl2 concentration 2.5mmol/L, dNTPs concentration 0.15mmol/L, primer concentration 15pmol, DNA template 50ng and Taq DNA polymerase 1.0U in 25μL RAPDPCR reaction system.
    • 王政标; 吴雨平; 陈志强
    • 摘要: 目的 掌握儿童感染金黄色葡萄球菌耐药性和耐甲氧西林株(MRSA)基因型分布,为临床治疗和感染控制提供依据.方法 采用纸片扩散法对临床分离MRSA进行药敏试验,随机扩增多态DNA(RAPD)方法进行MRSA基因多态性分析,WHONET5.4软件进行药敏数据分析.结果 287例金黄色葡萄球菌对头孢西丁耐药62株,MRSA检出率21.60%.MRSA对β-内酰胺类抗菌药物耐药率为25.81%~100%.对非β-内酰胺类抗菌药物庆大霉素、复方新诺明、克林霉素、四环素和大环内酯类耐药率较高为53.23%~85.48%,对呋喃妥因、利福平、左氧氟沙星和环丙沙星耐药率较低为6.45%~27.42%,未发现对万古霉素和利奈唑胺耐药株.其中MRSA对12种抗菌药物耐药率高于MSSA(P<0.05).经RAPD分型,62株MRSA分为5型,以Ⅰ型和Ⅲ型为主.结论 本地区儿童MRSA感染较高,且有不同耐药谱,加强儿童感染MRSA耐药性监测和了解MRSA流行情况,是防止耐药性进一步蔓延和MRSA感染爆发的有效措施.
    • 李颖丰; 周晖登
    • 摘要: 目的 了解儿童感染金黄色葡萄球菌的耐药性和耐甲氧西林金黄色葡萄球菌(MRSA)的基因型及分布,为临床治疗提供依据和确定MRSA流行情况.方法 采用ATB分析系统对菌株进行药敏试验,头孢硝基噻吩显色法检测β-内酰胺酶,随机扩增多态DNA(RAPD)方法进行MRSA同源性分析.结果 348株金黄色葡萄球菌中,334株产β-内酰胺酶,对β-内酰胺类抗菌药物的耐药率为6.03%~100.00%.耐药率较高的有四环素(65.23%)、大环内酯类(64.66%)、复方新诺明(48.28%)和克林霉素(43.97%),较低的有呋喃妥因(3.74%)、利福平(4.02%)、左氧氟沙星(8.91%)和环丙沙星(16.38%).未发现对万古霉素、替考拉林和利奈唑胺耐药.MRSA的检出率为9.77%,MRSA对17种抗菌药物的耐药率高于甲氧西林敏感金黄色葡萄球菌(MSSA).经RAPD分型,34株MRSA分为6型,以Ⅰ型为主(64.71%),主要分布于儿科PICU.结论 本地区儿童感染金黄色葡萄球菌有不同耐药谱,应加强儿童感染金黄色葡萄球菌的耐药性监测和掌握MRSA流行情况,对防止耐药性进一步蔓延和MRSA感染暴发有重要意义.%Objective To investigate the drug resistance of Staphylococcus aureus ( SA ) infection in children and genotype distribution of Methicillin resistant staphylococcus aureus ( MRSA ), so as to provide a reference for clinical use of antibiotics and determine the prevalence of MRSA. Methods All strains were performed antimicrobial susceptibility testing by ATB analysis system, β -lactamase was detected by the nitrocefin assay, and MRSA was genotyped by random amplified polymorphic DNA ( RAPD ) . Results Among 348 strains of SA, β -lactamase was detected in 334 stains. The drug resistant rate of β -lactamase antibiotics was 6. 03% ~ 100. 00%. The drug resistant rates of SA to tetracycline ( 65. 23% ). macrolides ( 64. 66% ). cotrimoxazole ( 48. 28 7% ) and clindamycin ( 43. 97% ) were higher, but those to nitrofurantoin ( 3. 74%), rifampicin ( 4. 02%  ), levofloxacin ( 8. 91% ) and ciprofloxacin ( 16. 38% ) were lower. The SA isolates resistant to Vancomycin, Teicoplanin and Linezolid were not found. The detection rate of MRSA was 9. 77% . MRSA was more resistant t0 17 kinds of antibiotics than Methicilin Susceptible Staphylococcus aureu ( MSSA ). Genotyped hy RAPD , 34 MRSA strains were divided into 6 types, with a dominant type of RAPD Ⅰ ( 64. 71% ), and they were mainly distributed in pediatric intensive care unit ( ICU ).Conclusion There were different resistance patterns of SA in the; local area of Nanning. In order to prevent the spread of drug resistance and the outbreak of MRSA infection, it was essential to strengthen monitor of drug resistance and investigate the prevalence of MRS.
    • 端金霞; 古河祥; 夏中荣; 叶明彬; 陈华灵; 张飞燕
    • 摘要: We used RAPD software to analyze the genetic diversity of seven Hawksbill Turtles(Eretmochelys imbricata) captured in the South China Sea.We used 20 random primers to amplify 1351 fragments.On average,193 bands were amplified for each individual.Sixty - nine of 193 loci were polymorphic(35.8%).The size of DNA fragments ranged from 200 bp to 3 000 bp.The genetic distance among individuals ranged from 0.082 9 to 0.181 3 and averaged 0.132 7±0.029 9.The phylogenetic tree of the seven turtles was constructed by NJTREE analysis using the RAPDistance 1.04 program.We conclude that the genetic diversity of Eretmochelys imbricata in the South China Sea is low.%应用RAPD技术分析了玳瑁的遗传多样性。用20个随机引物对中国南海海域玳瑁7个个体的基因组DNA进行了PCR扩增,共扩增出1 351条DNA片段,平均每个个体扩增出193条条带。在检测到的193条条带中,多态性条带为69条,多态性条带百分比为35.8%,条带大小在200 bp~3 000 bp之间,7个个体间遗传距离为0.082 9~0.1813,平均遗传距离为0.132 7±0.029 9,表明中国南海海域玳瑁的遗传多样性水平较低,应加强该区域玳瑁种质资源的保护。采用类平均聚类法(NJTREE)构建了7个个体相互关系的分子聚类图,表明该7个玳瑁个体没有形成种群的分化。
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