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相关概念视频

Evolutionary Relationships through Genome Comparisons02:54

Evolutionary Relationships through Genome Comparisons

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Genome comparison is one of the excellent ways to interpret the evolutionary relationships between organisms. The basic principle of genome comparison is that if two species share a common feature, it is likely encoded by the DNA sequence conserved between both species. The advent of genome sequencing technologies in the late 20th century enabled scientists to understand the concept of conservation of domains between species and helped them to deduce evolutionary relationships across diverse...
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Comparing Copy Number Variations and SNPs02:26

Comparing Copy Number Variations and SNPs

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Sequencing of the human genome has opened up several best-kept secrets of the genome. Scientists have identified thousands of genome variations that exist within a population. These variations can be a single nucleotide or a larger chromosomal variation.
Copy number variations or CNVs are the structural variations that cover more than 1kb of DNA sequence. The single nucleotide polymorphism (SNP), on the other hand, is a single nucleotide change or a point mutation that is found in more than 1%...
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Genome Annotation and Assembly03:36

Genome Annotation and Assembly

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The genome refers to all of the genetic material in an organism. It can range from a few million base pairs in microbial cells to several billion base pairs in many eukaryotic organisms. Genome assembly refers to the process of taking the DNA sequencing data and putting it all back together in a correct order to create a close representation of the original genome. This is followed by the identification of functional elements on the newly assembled genome, a process called genome annotation.
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Comparing Mitochondrial, Chloroplast, and Prokaryotic Genomes02:16

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The present-day mitochondrial and chloroplast genomes have retained some of the characteristics of their ancestral prokaryotes and also have acquired new attributes during their evolution within eukaryotic cells. Like prokaryotic genomes, mitochondrial and chloroplast genomes neither bind with histone-like proteins nor show complex packaging into chromosome-like structures, as observed in eukaryotes. Unlike mitotic cell divisions observed in eukaryotic cells, mitochondria and chloroplasts...
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Karyotyping

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An Integrated Platform for Genome-wide Mapping of Chromatin States Using High-throughput ChIP-sequencing in Tumor Tissues
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ChromoMapper:一个新的工具,可以快速比较大型基因组组合.

Elvira Toscano1,2, Elena Cimmino1,2, Angelo Boccia1

  • 1CEINGE-Biotecnologie Avanzate "Franco Salvatore", Napoli 80145, Italy.

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概括

ChromoMapper是一个新的工具,通过可视化序列之间的相似性和差异来简化基因组组装比较. 它有助于研究人员快速识别关键的对齐区域和组装特征.

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科学领域:

  • 基因组学就是基因组学.
  • 生物信息学是一种生物信息学.
  • 计算生物学 计算生物学

背景情况:

  • 基因组组装质量评估和比较对于新的基因组项目至关重要.
  • 现有的工具往往提供合成指标或冗长的文件,阻碍了组装对应和差异的容易可视化.

研究的目的:

  • 介绍ChromoMapper,这是一个用于增强基因组组装比较的新工具.
  • 为了促进组装基因组之间的相似性和差异的识别和可视化.

主要方法:

  • ChromoMapper 处理来自基因组组装评估工具 (如 QUAST) 的输出.
  • 它分析了对齐描述文件,以识别和显示相似之处和差异.
  • 该工具使用对齐的块信息和注释来表示染色体或亚染色体尺度上的主要对齐区域.

主要成果:

  • ChromoMapper强调了相似之处,对线性,不一致性,不连续性,重复区域和比较组件之间的中断.
  • 它提供了对齐区域的清晰可视化,有助于理解组装质量.
  • 该工具可以在基因组组装比较中快速识别关键特征.

结论:

  • ChromoMapper 提供了一种直观的方法来可视化和分析基因组组装比较.
  • 该工具通过提供详细但可访问的比较数据来增强质量评估过程.
  • 对于需要评估和比较组装的序列的基因组研究人员来说,ChromoMapper是一个有价值的资源.