SAFARI: pangenome alignment of ancient DNA using purine/pyrimidine encodings

Joshua Rubin, Jan van Waaij, Louis Kraft, Jouni Sirén, Peter Wad Sackett, Gabriel Renaud · 2025

Read SAFARI: pangenome alignment of ancient DNA using purine/pyrimidine encodings by Joshua Rubin, Jan van Waaij, Louis Kraft, Jouni Sirén, Peter Wad Sackett, Gabriel Renaud (2025) in the Tower of Babel, a free online library of public-domain works preserved in clean, searchable text. No sign-up. The full text is served as a plain-text file at a predictable URL, where text is present: https://antarctic-labs.com/tower-of-babel/pmc-12693626.txt.

Description

Joshua Rubin and co-authors present SAFARI, a tool for ancient DNA alignment in a 2025 paper. Ancient DNA is short and chemically damaged, which warps its letters. Standard alignment against one reference genome adds bias.

Pangenome graphs reduce that bias by holding known variation. Damage patterns still distort short fossil reads, though. Their index encodes bases by chemical family, purine or pyrimidine. Damage that swaps within a family stops confusing the matcher. The RYmer index builds on the common minimizer idea. Readers in genomics get a damage-aware way to place very old DNA.

Catalog record

CREATORJoshua Rubin, Jan van Waaij, Louis Kraft, Jouni Sirén, Peter Wad Sackett, Gabriel Renaud
YEAR2025
COLLECTIONPAPERS
FORMATTXT
FILE SIZE64 KB
VERSION1.0
LICENSECC BY 4.0
RIGHTSCC BY
SOURCEEurope PMC

Source: https://europepmc.org/articles/PMC12693626

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