Genomes of Southern California Threespine Stickleback
The broader goal of this work was to use modern genetic approaches to suggest a management strategy that more accurately reflects the evolutionary units of this species in southern California. Genomic data in this study are part of a larger, ongoing whole genome sequencing project on G. aculeatus throughout the region that will include more samples with higher sequencing coverage and address additional questions related to adaptive evolution. However, these current data are sufficient to address the following key questions: (1) What is the genetic structure of G. aculeatus at multiple geographic scales in southern California?; (2) Do unarmoured populations of G. aculeatus form a cohesive group when compared to other populations of G. aculeatus across the region?; (3) Do temporal trends in historical demography vary between up-and downstream reaches, and are the same trends mirrored across drainages?