de novo sequencing

De novo sequencing is a method used to determine the nucleotide sequence of DNA from scratch, without a reference genome. This process is crucial for understanding the genetic blueprint of an organism and is fundamental to genetic research and evolutionary studies.1

Early sequencing technologies, like the Sanger method developed in the 1970s, involved synthesizing DNA chains and stopping their growth at specific points to create a set of truncated DNA molecules. These molecules were then separated by size using electrophoresis to deduce the DNA sequence.1

Next-generation sequencing technologies have largely replaced older methods. These advanced techniques allow for the simultaneous sequencing of millions of DNA fragments, making the process much faster and more cost-effective. They have revolutionized biology by enabling rapid whole genome sequencing, aiding in the discovery of disease-related genes and a deeper understanding of genomic diversity.12