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Related Concept Videos

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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Multi-species Conserved Sequences02:51

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Next-generation sequencing technologies have created large genomic databases of a variety of animals and plants. Ever since the human genome project was completed, scientists studied the genome of primates, mammals, and other phylogenetically distant living beings. Such large-scale  studies have provided new insights into the evolutionary relationship between organisms.
Although the genome of each species varies greatly from each other, a few sequences are highly conserved. Such conserved...
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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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DNA sequencing is a fundamental technique that is routinely used in the biological sciences. This method can be applied to a range of questions at different scales - from the sequencing of a cloned DNA fragment or the study of a mutation in a gene up to whole-genome sequencing. However, despite the widespread use of sequencing today, it was not until 1977 that Fredrick Sanger and his collaborators developed the chain-termination method to decode DNA sequences. It relies on the separation of a...
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Updated: Dec 27, 2025

RNA Next-Generation Sequencing and a Bioinformatics Pipeline to Identify Expressed LINE-1s at the Locus-Specific Level
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GSAlign: an efficient sequence alignment tool for intra-species genomes.

Hsin-Nan Lin1, Wen-Lian Hsu2

  • 1Institute of Information Science, Academia Sinica, Taipei, Taiwan.

BMC Genomics
|February 26, 2020
PubMed
Summary
This summary is machine-generated.

GSAlign offers efficient and accurate large genome sequence alignment for identifying genetic variations. This tool enhances genome research by providing faster, more precise results than existing methods.

Keywords:
Comparative genomicsGenome comparisonPersonal genomicsSequence alignmentVariation detection

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Area of Science:

  • Genomics
  • Bioinformatics

Background:

  • Comparative genomics and personal genomics are crucial for clinical practice and research.
  • Accurate sequence alignment is essential for identifying genetic conservation and variation.
  • Existing genome comparison tools often lack efficiency for large genomes and systematic evaluation of alignment correctness.

Purpose of the Study:

  • To develop an efficient tool for large genome sequence alignment.
  • To accurately identify sequence variants from alignment results.
  • To evaluate the performance and correctness of the developed alignment tool.

Main Methods:

  • Development of GSAlign, an efficient sequence alignment tool.
  • Application of GSAlign for intra-species genome comparison.
  • Performance estimation through measurement of predicted sequence variation correctness.

Main Results:

  • GSAlign demonstrates efficient handling of large genome sequence alignment.
  • The tool accurately identifies sequence variations.
  • Experimental results show GSAlign is faster and more accurate than state-of-the-art methods.

Conclusions:

  • GSAlign is a valuable tool for the increasing demand in genome comparison.
  • The tool offers ultra-fast alignment speeds.
  • GSAlign provides high accuracy and sensitivity in detecting sequence variations.