10/29/2026
🐢 At an estimated 194 years old, Jonathan has a remarkable story—and researchers are looking to his DNA for clues to his extraordinary longevity.
A new study in Science Advances explores the genetic and epigenetic features of the world’s oldest known living land animal, identifying differences in pathways involved in DNA repair, mitochondrial function, and other processes associated with aging.
With coverage in Smithsonian Magazine and Live Science, Jonathan’s story is bringing genomic research to a wider audience and sparking curiosity about the biology of aging.
Dovetail Omni-C helped scaffold the reference genome used to analyze Jonathan’s DNA. Researchers assembled that genome from Tank, a younger Aldabra giant tortoise, using PacBio HiFi sequencing and Omni-C scaffolding.
Congratulations to the research team on this fascinating contribution to longevity research!
Read the study: https://na2.hubs.ly/H08zQb90
Aldabra giant tortoises (Aldabrachelys gigantea) are exceptionally long-lived. We sequenced the genome and methylome of Jonathan, a 194-year-old Aldabra, to explore the molecular basis of his longevity. Relative to other giant tortoises (A. gigantea and ...