Related Experiment Video
Updated: Apr 18, 2026

10:34
Ultra-long Read Sequencing for Whole Genomic DNA Analysis
Published on: March 15, 2019
24.3K
Co-barcoded sequence reads from long DNA fragments: a cost-effective solution for "perfect genome" sequencing
Brock A Peters1, Jia Liu2, Radoje Drmanac1
1Department of Research, Complete Genomics Inc., Mountain View CA, USA ; BGI, Shenzhen China.
Frontiers in Genetics
|February 3, 2015
Summary
Next generation sequencing (NGS) has revolutionized genomics, sequencing over 100,000 human genomes. However, achieving a "perfect genome" requires further advancements in sequencing technology for deeper biological understanding.
Area of Science:
- Genomics
- Bioinformatics
- Molecular Biology
Background:
- Next generation sequencing (NGS) technologies have transformed global research by enabling rapid genome analysis across thousands of species.
- Human genome sequencing, utilizing NGS, has provided profound insights into individual uniqueness and disease etiology, with over 100,000 genomes analyzed.
Purpose of the Study:
- To highlight the importance of a complete and accurate human genome sequence.
- To identify the limitations of current whole genome sequencing data.
- To propose a cost-effective strategy for achieving a "perfect genome".
Main Methods:
- Review of current next generation sequencing (NGS) capabilities and limitations.
- Analysis of existing human whole genome sequence data.
- Development of a strategic approach for future genome sequencing initiatives.
Main Results:
- NGS technologies have significantly advanced genomic research but have not yet produced a "perfect genome" sequence.
- Current human genome sequences lack completeness, hindering a full understanding of genomic biology.
- A viable strategy for cost-effective "perfect genome" achievement is proposed.
Conclusions:
- The pursuit of a "perfect genome" is crucial for comprehensive biological understanding.
- Addressing the shortcomings of current sequencing technologies is essential.
- Implementing a strategic approach can lead to more complete and accurate human genome sequences.
Related Concept Videos
Next-generation Sequencing
102.2K
The first human genome sequencing project cost $2.7 billion and was declared complete in 2003, after 15 years of international cooperation and collaboration between several research teams and funding agencies. Today, with the advent of next-generation sequencing technologies, the cost and time of sequencing a human genome have dropped over 100 fold.
Next-Generation Sequencing Methods
Although all next-generation methods use different technologies, they all share a set of standard features....
Next-Generation Sequencing Methods
Although all next-generation methods use different technologies, they all share a set of standard features....
102.2K
Sanger Sequencing
780.9K
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...
780.9K
RNA-seq
12.7K
RNA sequencing, or RNA-Seq, is a high-throughput sequencing technology used to study the transcriptome of a cell. Transcriptomics helps to interpret the functional elements of a genome and identify the molecular constituents of an organism. Additionally, it also helps in understanding the development of an organism and the occurrence of diseases.
Before the discovery of RNA-seq, microarray-based methods and Sanger sequencing were used for transcriptome analysis. However, while...
Before the discovery of RNA-seq, microarray-based methods and Sanger sequencing were used for transcriptome analysis. However, while...
12.7K
Maxam-Gilbert Sequencing
13.9K
In the same year as the discovery of the Sanger sequencing method, another group of scientists, Allan Maxam and Walter Gilbert, demonstrated their chemical-cleavage method for DNA sequencing. The Maxam-Gilbert method relies on using different chemicals that can cleave the DNA sequence at specific sites, the separation of resulting DNA fragments of variable size using electrophoresis, and deciphering the DNA sequence from the resulting gel bands.
Challenges of the Maxam-Gilbert Method
The...
Challenges of the Maxam-Gilbert Method
The...
13.9K
Genome Annotation and Assembly
22.3K
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.
22.3K

