Levels and patterns of genetic diversity can provide insights into a population's history. In
species with sex chromosomes, differences between genomic regions with unique …

Levels and patterns of genetic diversity can provide insights into a population's history. In
species with sex chromosomes, differences between genomic regions with unique …

Selection on codon usage bias is well documented in a number of microorganisms. Whether
codon usage is also generally shaped by natural selection in large organisms, despite their …

Background Contamination is a well-known but often neglected problem in molecular
biology. Here, we investigated the prevalence of cross-contamination among 446 samples …

The rateof divergence for Z or X chromosomes is usually observed to be greater than
autosomes, but the proposed evolutionary causes for this pattern vary, as do empirical …

Whether adaptation is limited by the beneficial mutation supply is a long-standing question
of evolutionary genetics, which is more generally related to the determination of the adaptive …

Background Lepidoptera is one of the most species-rich animal groups, with substantial
karyotype variations among species due to chromosomal rearrangements. Knowledge of the …

Standard models of sex chromosome evolution propose that recombination suppression
leads to the degeneration of the heterogametic chromosome, as is seen for the Y …

Differentiated X chromosomes are expected to have higher rates of adaptive divergence
than autosomes, if new beneficial mutations are recessive (the “faster-X effect”), largely …

Background The nearly neutral theory of molecular evolution predicts that the efficacy of
natural selection increases with the effective population size. This prediction has been …