Genome-wide subgenome-resolved analysis validates chromosome 4 differentiation and prioritizes introgressed Coffea arabica accessions
Ezekiel Ahn, Sunchung Park, Insuck Baek, Moon S. Kim, Lyndel W. Meinhardt · 2026
Read Genome-wide subgenome-resolved analysis validates chromosome 4 differentiation and prioritizes introgressed Coffea arabica accessions by Ezekiel Ahn, Sunchung Park, Insuck Baek, Moon S. Kim, Lyndel W. Meinhardt (2026) 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-13572660.txt.
Description
Ezekiel Ahn and co-authors recheck, genome wide and by subgenome, which coffee plants carry genes crossed in from another species, in work dated 2026. Arabica coffee holds two ancestral subgenomes. A Timor hybrid crossed in material on chromosome 4, a known source of disease resistance.
Forty-four public coffee genomes were reanalyzed with strict filtering to keep the subgenomes apart. Rankings of plants held steady across marker counts and random seeds. Six crossed in reference plants survived every check. Chromosome 4 split the groups most strongly in both subgenomes, though far more weakly in one. The shortlist tells breeders which plants to trust as resistance donors.
Catalog record
| CREATOR | Ezekiel Ahn, Sunchung Park, Insuck Baek, Moon S. Kim, Lyndel W. Meinhardt |
|---|---|
| YEAR | 2026 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 29 KB |
| VERSION | 1.0 |
| LICENSE | CC BY 4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |