Hybrid zones, where different species interbreed, provide key insights into how species form and evolve.
The new R package, bgchm, enhances population genomic analysis of these hybrid zones by improving Bayesian methods for estimating ancestry and genetic patterns.
bgchm offers accurate parameter estimation and can discern the roles of selection and genetic drift in introgression, while also addressing the limitations and future potential of genomic cline analysis.
* In Wyoming's Wind River and Bighorn River systems, researchers studied the impact of dams on sauger population connectivity and hybridization with walleye, finding limited hybridization overall but higher rates in Boysen Reservoir.
* The study suggests that dams have led to population divergence in sauger, with upstream populations showing lower genetic diversity, indicating potential negative demographic consequences due to disrupted connectivity.