PT  - JOURNAL ARTICLE
AU  - Daniel B. Weissman
TI  - Ancestry in adapting, spatially-extended populations
AID  - 10.1101/084426
DP  - 2016 Jan 01
TA  - bioRxiv
PG  - 084426
4099  - http://biorxiv.org/content/early/2016/10/30/084426.short
4100  - http://biorxiv.org/content/early/2016/10/30/084426.full
AB  - Selective sweeps affect neutral genetic diversity through hitchhiking. While this effect is limited to the local genomic region of the sweep in panmictic populations, we find that in spatially-extended populations the combined effects of many unlinked sweeps can affect patterns of ancestry (and therefore neutral genetic diversity) across the whole genome. Even low rates of sweeps can be enough to skew the spatial locations of ancestors such that neutral mutations that occur in individuals living outside a small region in the center of the range have virtually no chance of fixing in the population.