基因组大小

基因组大小（C值）是重要的生物学指标。

Genome size ( C value ) is a key biological index .

基因组大小，即C值，与基因组中所含的遗传信息的认定数量间缺乏对应，这种C一值悖论是由非基因DNA的增加所造成的。

He lack of correspondence between genome size , i. e. c-value and the presumed amount of genetic information contained within genomes has become known as the c-value paradox . It is due to the increasing of nongenic DNA .

简要回顾了鸟类线粒体DNA研究历史，并分析了中国猛禽线粒体DNA遗传多态性的研究现状及进展，要点：1.猛禽类线粒体基因组大小存在遗传多态性；

In this paper , we reviewed the history of research on mtDNA of birds and gave a relatively overall analysis on genetic polymorphism of mtDNA of Raptors in China . The following are the points : 1.There was genetic polymorphism in mtDNA genome size of Raptors ;

对几种百合科植物基因组大小的评价

Discussion on the genome size of several species of Liliaceae

流式细胞术可快速、精确测定蠕形螨基因组大小。

Flow cytometry can rapidly and accurately determinate the genome size of Demodex .

值矛盾：结构上的复杂度与基因组大小没有明显的关系。

The C-value paradox : no correlation between apparent structural complexity and genome size .

钩端螺旋体基因组大小的初步研究

The Study on Genome Size of Leptospires

稀有鮈鲫与其他模式实验鱼类基因组大小的比较

Comparison of genome size of Rare Minnow ( gobiocypris rarus ) with other model fishes

水稻基因组大小变化的趋势；

Evolution of rice genome size ;

结果表明藓羽藻叶绿体基因组大小约为150kb。

The results showed that the size of B. hypnoides chloroplast genome was about 150 kb .

各种作物基因组大小的差异可能由于各个区段内基因间重复顺序扩增的程度不同所致。

The differences of genome size among cereals may be due to different degrees of repetitive sequence amplification in intergenic regions in different species .

本文还介绍了昆虫基因组大小的估计方法，讨论了昆虫基因组大小的变化及其意义。

The estimation methods for insect genome size are introduced , and the variation of insect genome sizes and its significance are also discussed .

昆虫基因组大小是由于基因组各种重复序列在扩增、缺失和分化过程中所致的数量差异造成的。

The difference of genome size between different insects is due to varieties of duplication of the genome sequence in the amplification , deletion and differentiation .

但由于基因组大小不同、基因密度不一致以及微共线性保守性程度低，其在各自染色体位置上存在偏差。

Further , Touchdown PCR with gene-specific primer also proved the existence of RHL gene with same length in a same region in corn and barley genome .

虽然这些物种都是二倍体并且含有相同数量的染色体但是杂交体和亲本间核基因组大小仍不相同。

The nuclear-genome size differences between the hybrids and their parental taxa occur in spite of the fact that all species possess the same number of chromosomes and are diploids .

反转座子受到组织培养、种间杂交等过程的激活发生反转座可能导致扩增基因组大小，改变基因组结构等作用。

Retrotransposon activities in plant genome can be activated by various factors , such as cell culture and interspecific hybridization and so on . Their transposition can finally results in the amplification of genome and remodeling of genomic structure .

测定一个物种的基因组大小对构建高质量基因文库有重要意义，也是研究一个物种基因组的重要参数，是筛选蠕形螨的功能基因和将来研究其分子致病机理的重要基础工作。

The determination of genome size is important for a species , which are the basis to build a high quality gene library and an important parameter for genome research . It is also the foundation for screening the functional genes and studying the pathogenicity of demodex .

通过对随机挑取318个的克隆进行脉冲场凝胶电泳检测，估算出文库克隆平均插入片断为120kb，相当于文昌鱼基因组大小的12倍，从文库中获得任意目的片断的概率高达99.9995%。

The average insert fragment size was 120 kb estimated by Pulsed Field Gel Electrophoresis ( PFGE ) analysis of 318 randomly selected clones . The representation of the library is about 12 equivalent to the genome , allowing a 99.9995 % probability of recovering any specific sequence of interest .

结论大口鲇不同群体个体基因组DNA大小相同。

Conclusions Genomic DNA keeps the same molecular weight in different demes of Silurus meridionalis .

科学家们通过对细胞中的DNA进行染色，并以显微镜观察和测量，估算出了人类基因组的大小。

Scientists had already discovered how big the human genome was by staining the DNA in cells , looking at the cells through microscopes and measuring its size .

相反，他更赞同一个在20世纪70年代首次提出，但至今听来仍然有些惊世骇俗的学说：动植物基因组的大小与其复杂程度基本无关，因为——说穿了——绝大部分的DNA都是“垃圾”。

Instead , he champions an idea first developed in the 1970s but still startling today : that the size of an animal 's or plant 's genome has essentially no relationship to its complexity , because a vast majority of its DNA is - to put it bluntly - junk .

杂交信号图型在物种间有明显的差异，并与基因组的大小相关。

The signal patterns varied among species and were related to the genome size .

光学标测能显示基因组的大小和大片结构。

The power of optical mapping lies in its ability to reveal the size and large-scale structure of a genome .

该病毒的基因组为dsDNA，大小约在21～24kb之间。

The viral genome is dsDNA , and its size is between 2 1-24 kbp .

结果共获得10种HBV基因组剪接变异体，基因组大小介于765～2039bp之间。

Results 10 different types of the spliced variants of hepatitis B virus genomes were obtained with the molecular weight ranging from 765 bp to 2039 bp .

蚂蚁基因组是人类基因组片段大小的十分之一。

Ant genomes are about one-tenth of the size of human genomes .