This article was originally published in 2019 and updated for clarity and readability.
The Proteus Genome Project (PGP) is a collaboration between BGI Research, the University of Ljubljana in Slovenia, and Aarhus University in Denmark, aiming to sequence and analyse the genome of Proteus anguinus, an iconic cave salamander.
About Proteus
Proteus, also known as the olm, is a remarkable amphibian native to the caves of the Dinaric Karst on the Balkan Peninsula. It has the longest lifespan among amphibians, living over 100 years, shows negligible signs of aging, can survive years of starvation, and can fully regenerate damaged limbs. These traits make it a focus of research in longevity, regenerative medicine, and human health.
The species is endangered, making it a flagship for the conservation of subterranean biodiversity. Understanding its genome also supports optimal conservation strategies and the assessment of population health.
Sequencing Challenges and MGI Technology
Proteus has an enormous genome of 42Gb, 15 times larger than the human genome, posing a formidable sequencing challenge. To tackle this, the Proteus Genome Project employs MGI Tech’s DNBSEQ™ DNA nanoball sequencing technology, combined with BGI’s sequencing and computational resources. Over a trillion nucleotides were sequenced, with each nucleotide read on average 160 times to ensure accuracy.
MGI’s innovations, including high-accuracy sequencing with reduced duplicates and low index hopping, along with single tube long fragment read (stLFR) technology, enable the generation of long-read sequencing data at lower cost and complexity.
Scientific and Medical Significance
The genome of Proteus may reveal mechanisms behind its longevity, resistance to weight fluctuation, and extraordinary regenerative abilities. Insights gained could inform regenerative medicine, aging research, and other human health applications.
International Collaboration
The project builds on collaboration between China, Slovenia, and Denmark, combining expertise in DNA sequencing, genomics, and cave organism biology. Key contributors include Nina Gunde-Cimerman, Rok Kostanjsek, and Emil Erjavec from the University of Ljubljana; Duncan Yu and Xun Xu from BGI; and Lars Bolund and colleagues from Aarhus University.
The Proteus Genome Project represents a significant step in combining high-throughput genomics technology with biodiversity research and medical innovation, highlighting how large-scale genome sequencing can drive both scientific discovery and conservation efforts.
For further information, visit: proteusgenome
