Všichni žijící lidé nesou DNA záhadné „duchí

Key findings from the study published July 30, 2026 in Science:

• TRACE (ancestral recombination graph method developed by Yulin Zhang and colleagues at UC Berkeley) detects archaic introgression in modern genomes without requiring any ancient reference DNA from fossils, allowing it to find "ghost" ancestors invisible to earlier methods .
• The ghost lineage split about 800,000 years ago and left traces in all present-day human populations, not just Eurasians or Africans — a global signal .
• The super-archaic lineage is one of the oldest known hominin groups to have interbred with later humans. Its DNA entered modern humans via Denisovans, who had already mixed with this super-archaic population before later breeding with Homo sapiens .
• Many of the archaic DNA segments identified by TRACE are concentrated in genomic regions linked to immune function and metabolism, suggesting these introgressed variants may have been adaptive .
• Together, these findings reshape human evolution from a simple branching tree into a "complex web" of populations connected by repeated migration, admixture, and interbreeding .

Caveat: The ghost and super-archaic lineages are statistical reconstructions from modern genomes; no fossil or ancient DNA has yet been directly linked to them. Candidate candidates for the super-archaic group include Homo erectus, but this remains unconfirmed .