How did automated sequencing machines help the Human Genome Project?

Created from Britannica articles using AI. AI can make mistakes, so verify using Britannica articles.

Automated sequencing machines were essential to the Human Genome Project (HGP) because they provided the necessary technology to scale up DNA sequencing to a level capable of tackling a genome as large as that of a human.1

Prior to the development of these machines, sequencing large genomes was considered conceptually out of reach due to the high costs and immense effort required. Automated machines improved this process by utilizing fluorescence for the detection of sequencing reaction products, replacing the older, more labor-intensive method of using radioactive decay.1

By labeling DNA molecules with fluorescent tags and using laser excitation to detect them within thin glass capillaries, these machines allowed for significantly faster and more efficient data production. This automation was a critical factor in enabling scientists to move beyond sequencing individual genes and small viral genomes, ultimately facilitating the successful publication of the human genome sequence in 2001.12