Although it is well established theoretically that selective interference among mutations (Hill-Robertson interference) favours meiotic recombination, genome-wide mean rates of mutation and strengths
Speciation is a continuous and dynamic process, and studying organisms during the early stages of this process can aid in identifying speciation mechanisms. The mallard (Anas platyrhynchos) and Mexica
Antagonistic pleiotropy (AP) – where alleles of a gene increase some components of fitness at a cost to others – can generate balancing selection, and contribute to the maintenance of genetic variatio
(A) pooled data, and (B-D) pairwise comparisons between the wealth classes. The table shows results for two models in each of the above cases: first, effects of interactions between the wealth class (
Earlier work had shown that mitochondrion genomes of Geraniaceae exhibit major shifts in rates of synonymous substitutions and one, Erodium trifolium, has lost most of the genes for ribosomal proteins