Granulin loss and TMEM106B risk converge on lysosomal C-terminal fragment pathology in frontotemporal dementia

This study reveals that granulin deficiency drives the lysosomal accumulation of a pathogenic TMEM106B C-terminal fragment, a process mitigated by protective TMEM106B alleles through dimerization and reversible by progranulin supplementation, thereby elucidating the mechanistic link between these genes in frontotemporal dementia.

Zeng, Y., Xiong, J., Lovchykova, A. + 4 more2026-03-26🧬 genetics

Synergistic action of different molecular mechanisms causes striking levels of insecticide resistance in the malaria vector Anopheles gambiae

This study demonstrates that the synergistic combination of multiple detoxification enzyme overexpressions and target-site mutations drives extreme insecticide resistance in *Anopheles gambiae*, while simultaneously revealing that P450-mediated resistance creates a vulnerability to pro-insecticides that can inform new resistance management strategies.

Chen, M., Remadi, L., Tsakireli, D. + 9 more2026-03-25🧬 genetics

Subsistence transition preceded population turnover in the eastern Colombian Andes

Genome-wide analysis of 209 ancient individuals from the eastern Colombian Andes reveals that a subsistence transition to maize cultivation occurred without population replacement among long-standing local hunter-gatherers, while a distinct genetic turnover associated with the emergence of the Herrera culture approximately 2,200 years ago was driven by the migration of new groups with mixed Amazonian and Chibchan-related ancestry.

Sirak, K., Delgado, M., Triana, A. + 31 more2026-03-25🧬 genetics

Ancient human genomes from the Altai region reveal population continuity and shifts in the 4th-12th centuries

This study analyzes ancient genomes from the Altai and Ob regions to reveal a 1,400-year population history characterized by Iron Age continuity, a significant East Asian genetic influx linked to the spread of Turkic culture, and the identification of a unique Early Medieval lineage connecting Ancient North Eurasian hunter-gatherers to modern North Asians.

Ozdemir, Y. C., Gyuris, B., Jakab, K. + 19 more2026-03-25🧬 genetics

Differential DNA methylation clock ages across buffy coat (BC), peripheral blood mononuclear cells (PBMC), and saliva in individuals in early-to-mid adulthood

In a study of 91 individuals in early-to-mid adulthood, DNA methylation clocks revealed that while saliva yields significantly higher age estimates than blood-derived tissues (buffy coat and PBMC), the latter two are comparable to each other, and all tissue types remain suitable for within-tissue aging research despite notable differences in heritability patterns.

Bruellman, R., Evans, D., Smolen, A. + 2 more2026-03-24🧬 genetics