Ambrosia beetle invasions are structured by inbreeding, intraspecific hybridization, and bridgeheads.

Abstract excerpt

When invasive populations establish in regions far from their origin, they may accumulate deleterious mutations that limit population viability and later expansion. Invasions stemming from such bridgehead populations may experience further sequential bottlenecks. However, deleterious mutations can be masked or eliminated when populations outbreed with other lineages. Here, we analyze global invasions of a species...

Topics

• Animals
• Coleoptera
• Introduced Species
• Hybridization, Genetic
• Inbreeding
• Genetic Variation