Results 41 to 50 of about 1,281,694 (159)
白纹伊蚊和致倦库蚊Wolbachia 16S rRNA 序列测定与分析
Zhongshan Daxue xuebao. Yixue kexue ban, 2002 【目的】PCR 法扩增与测定白纹伊蚊和致倦库蚊的细胞内共生菌Wolbachia 16S rRNA 序列, 分析其种系发生关 系及传播方式。【方法】从单只雌蚊中提取DNA , PCR 法扩增16S rRNA 序列, 扩增产物进行克隆及测序。【结果】从白纹伊 蚊和致倦库蚊分别扩增出Wolbachia 16S rRNA 序列, 并克隆入pGEM-T 载体, 测序证明两序列长度分别为897 bp。【结论】 成功克隆了白纹伊蚊和致倦库蚊Wolbachia 16S rRNA 序列。测序和同源性分析表明 ...
葛春喜 +5 more
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Guangtongxin yanjiu, 2021 针对波分复用-无源光网络（WDM-PON）的系统可容纳用户量问题，为扩大系统的容量和速率，同时保证光纤的带宽需求，文章提出了一种基于混沌扩频的光码分多址波分复用无源光网络（OCDMA-WDM-PON）系统方案，分析了Henon混沌序列作为地址码的初值敏感性、自相关和互相关等特性，并通过Matlab仿真平台分析了Henon混沌序列与Logistic混沌序列、光正交码（OOC）关于系统误码率（BER）性能的对比，验证了混沌序列在通信系统中作为地址码的可行性和优越性。实验结果表明 ...
杨立伟 +4 more
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Integrative Conservation, Volume 4, Issue 3, Page 405-415, September 2025.Assessing the genetic diversity of edible insects harvested from the wild is a pre‐requisite for designing conservation and management policies. The caterpillars of Gynanisa maja (Saturniidae) are harvested in large numbers in mopane woodlands in southern Africa, where they represent a seasonal source of income and nutrition to many rural communities ...
Zwannda Nethavhani +3 more
wiley +1 more source
Integrative Conservation, Volume 4, Issue 3, Page 277-286, September 2025.This study provides an innovation to address the challenge in accessibility to samples and genetic markers in Snow leopard conservation genetic studies. We performed next‐generation sequencing (NGS) on 19 fecal samples obtained from the eastern Qinghai‐Tibet Plateau, and successfully assembled 17 complete mitogenome sequences (~16,720 bp) and ...
Chen Cheng +7 more
wiley +1 more source
PCR 循环测序法检测 Kras 和 HCV 5′ 非 编 码 区 基 因 变 异
Zhongshan Daxue xuebao. Yixue kexue ban, 1998 目的: 建立一种简单、快速、可靠的 DNA 序列分析方法,并利用此方法分析 K-ras基因和HCV 5′非编码区基因的变 异情况。方法: PCR 循环测序法是将 PCR 扩增与核酸序列分析相结合的一种研究方法。根据此技术原理,建立了以 PCR 扩增 引物为测序引物, 利用 Taq DNA 聚合酶、荧光标记的 2′ , 3′ -双脱氧核苷三磷酸( ddNTP)直接进行 PCR 扩增产物序列分析的方 法。应用该方法对人肺癌组织中的 K-ras癌基因和丙型肝炎病毒 5′ 非编码区(HCV 5′ -NTR ...
任秀容 欧文晖 李全贞 周新宇 何蕴韶
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External validation of QUiPP App in three independent European cohorts of symptomatic women
Ultrasound in Obstetrics &Gynecology, Volume 66, Issue 2, Page 163-174, August 2025.ABSTRACT Objective To validate externally the QUantitative Innovation in Predicting Preterm birth (QUiPP) App v.2 for the prediction of spontaneous preterm birth (sPTB) in symptomatic women attending tertiary care in Europe. Methods The QUiPP App v.2 was validated in three independent datasets: a prospective European multicenter cohort across five ...
A. M. Fischer +8 more
wiley +1 more source
四川大学学报. 自然科学版, 2010 运用mRNA差异显示技术(DDRT-PCR),并结合反向Northern杂交筛选麻疯树(Jatropha.curcus)干旱胁迫下差异表达基因,最终从麻疯树叶片中分离出8条干旱胁迫诱导下表达上调的差异片段.经克隆、测序和基因信息分析后发现其中4个片段与GenBank中已知序列有较高同源性.对这4个差异表达片段的序列分析表明:JcDD-3和JcDD-13分别与1-磷酸-肌醇合成酶(MIPS)基因及甜菜碱醛脱氢酶(BADH)基因序列有较高同源性;JcDD-16与白杨中度抗旱叶片中提取的表达序列标签 ...
戴晓 +6 more
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Updated insights into the molecular pathogenesis of canine atopic dermatitis
Veterinary Dermatology, Volume 36, Issue 4, Page 375-384, August 2025.Abstract Atopic dermatitis (AD) is a common and chronic inflammatory skin disease with frequent relapses. The genomics revolution has greatly contributed and revolutionised our knowledge of human AD; understanding the molecular skin fingerprint of AD and associated pathogenic immune pathways has led to preclinical assessments of several novel ...
Frane Banovic
wiley +1 more source
野生动物学报, 2012 从患病华南虎分离病原菌,进行快速鉴定,同时以大肠杆菌16S rRNA基因的通用引物和irp2、papC、iucD、tsh、iss毒力基因的特异性引物进行PCR扩增、测序,并将扩增出来的irp2、iucD、iss基因序列与Genbank相应序列进行同源性分析。测序鉴定为大肠埃希氏菌,与传统细菌鉴定方法结果相一致,分离菌携带irp2、iucD、iss毒力基因,从毒力试验得到证实。其序列与Genbank上发表的iucD、iss基因序列同源性分别高达98%、99%,而irp2基因序列的同源性仅为48 ...
谢和平, 朱庆艳, 陈武, 肖建雄
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New Phytologist, Volume 247, Issue 2, Page 504-517, July 2025.Summary Repetitive DNA is a feature of all organisms, ranging from archaea and plants to humans. DNA repeats can be seen both in coding and in noncoding regions of the genome. Due to the recurring nature of the sequences, simple DNA repeats tend to be more prone to errors during replication and repair, resulting in variability in their unit length ...
Sridevi Sureshkumar +3 more
wiley +1 more source