Transposable elements, or insertion elements, are DNA sequences which can be inserted into many different sites in chromosomes. 转位因子或插入因子是能够插入到染色体不同位点的dna序列。
Crick and his colleagues argued that transposable elements were common in our genome not because they did something essential for us, but because they could exploit us for their own replication. 克里克和他的同事们指出,转座因子之所以在我们的基因组中十分常见,不是因为它们有什么必不可少的功能,而是因为它们可以利用我们来完成它们自身的复制。
Over millions of years, the human genome has spontaneously gotten bigger, swelling with useless copies of genes and new transposable elements. 数百万年来,人类基因组自发增大了不少,其中充斥着无用的基因拷贝和新的转座因子。
Any clone selected by the screen contains the transposable element, with the mutated gene adjacent to it. 任何通过筛选而选择出的克隆均含有一个转座子和紧靠着它的一个突变基因。
Noncoding DNA, containing introns, repetitive elements, and potentially active transposable elements, requires effective mechanisms for its long-term silencing. 非编码DNA,包括内含子,重复元件,和潜在激活转座子,其长期的沉默需要有效的机制。
Cytosine methylation silences transposable elements in plants, vertebrates, and fungi but also regulates gene expression. 胞嘧啶的甲基化能够沉默植物、脊椎动物和真菌的转座元件,同时也能调控基因的表达。
Dispersed repetitive sequence is mainly transposable elements which are composed of transposon and retroposon. 散在重复序列主要是可转移因子,可转移因子分为转座子和返座子两种类型。
Possibly: Mutations that impair RNA silencing in Caenorhabditis elegans result in the mobilization of transposable elements. 在秀丽新杆线虫,结果在动员的转座因子。
CHH methylation of small transposable elements is increased in embryos, suggesting that endosperm demethylation enhances transposon silencing. 胚中小的转座元件CHH甲基化作用发生了增强,表明了胚乳的去甲基化增强了转座元件的沉默。
The instability of morphological variation in flower of Z.grandiflora might be related to transposable genetic element. 花形变异的不稳定性可能与转座遗传因子有关。
Having identified a plant showing a phenotype of interest, a genomic library of the transposon tagged stock is screened for the transposable element. 鉴定一个具有目的表现型的植株后,可以在一个转座子标记系的基因组文库中筛选出这个转座子。
These results indicated that degradative and transposable genes of the naphthalene-degrading bacteria are highly conserved. 这些结果表明,萘降解细菌的降解基因和转座基因具有高度的保守性。
Our article deals with the recent studies on the transposable elements controlling heredity and evolution in organisms. 本文简述近代对控制生物遗传和进化的转座因子的研究动态。
Presently many plant transformation systems have been developed in order to remove selectable marker genes such as co-transformation system, site-specific recombination system, transposable element system and MAT vector system etc. 为彻底消除选择标记基因的负面影响,目前已经发展了多种去除选择标记基因的植物转化系统,如共转化系统、位点特异性重组系统、转座子系统及MAT载体系统等。
The relation between P transposable element and environment to genetic efficacy was studied. 主要对果蝇的P转座因子以及环境对P转座因子遗传效应的作用关系进行了研究。
RNA Mediated Transposable Elements in Insects 昆虫中RNA介导的转座因子
Effects of transposable elements on synonymous codon usage bias in rice 转座因子对水稻同义密码子使用偏性的影响
The using of co-transformation system, site-specific recombination system ( FLP/ FRT? Cre/ lox? R/ RS and Gin/ gix systems) and transposable element system ( Ac/ Ds transposable element system) in breeding marker-free transgenic plants were reviewed in this paper. 本文综述了共转化系统、位点特异性重组系统(包括FLP/FRT、Cre/lox、R/RS及Gin/gix系统)和转座子系统(Ac/Ds转座子系统)在培育无选择标记转基因植物中的应用。
Transposable elements ( TEs), which are DNA segments moving within genomes, play a major role in gene and genome evolution of eukaryotes. 转座元件是基因组中可移动的DNA分子,在真核生物的基因和基因组进化中起着重要的作用。
The white-apricot ( w α) allele differs from the wild type white gene by the presence of the retrovirus-like transposable element copia within the transcription unit. 在果蝇中,杏黄色眼基因w~a和它的野生型白眼等位基因w的区别在于前者的转录单位中插入了反转录病毒样转座因子copia。
Advances in Application and Research of Bacillus thuringiensis's Class ⅱ Transposable Elements 苏云金芽孢杆菌Ⅱ类转座因子的应用与研究进展
The idea that transposable elements ( TEs) are mainly'selfish'or'junk'DNA with little importance for host evolution has challenged. 转座因子主要是一些“自在”或“无功能”的DNA,其对宿主进化无关紧要的观点受到了质疑。
Analyses were made on the thinking method of the creating of transposable element theory in genetics by Barbara McClintock. 对麦克林托克发现及创立转座因子理论的过程进行了阐述和哲学分析。
Transposition of transposable element increases its copy number and thus restructures the genome. 由于转座子的跳跃而使其拷贝数增加,从而使植物基因组的可塑性增大。
Research on Effective Relation Between P Transposable Element of Drosophila Melanogaster and Environment Factors 环境对果蝇P转座因子的作用关系研究
Insertion of transposable elements into several resistance gene loci result in further evolution of resistance genes. 同样,类转座元件在抗病基因座中的插入加速了抗病基因的进化。
Research and application on the extrachromosomal genetics and transposable genetic elements in fungi 真菌之染色体外遗传及其转移性遗传因子之研究与应用
These results prove that one of DNA methylation functions is maintenance the genome stabilization by repressing the transposable element activity again. 这一结果与已知的DNA甲基化的主要功能之一是通过抑制转座子和反转座子等的活性来维持基因组的稳定性的观点相一致。
The frequency and length proportion of transposable elements in genome sequences are higher than those in transcribed sequences. 基因组序列中的转座元件与转录序列中的相比,出现频率高,长度比例也高。