This discrepancy may be explained by technological differences in the technique used for DNA extraction and HPV typing between studies, selection and size of tissue samples, complexity of the lesions, or real differences in the populations investigated.
These changes are more likely to be affected by the interaction between selection and effective population size (N e), that is, slightly deleterious non-synonymous substitutions are expected to be fixed in populations of smaller N e at a greater rate than in larger populations [ 45].
Sows have become larger during the last 25 years in response to genetic selection, and size varies between breeds, so information on body dimensions needs to be breed specific and up to date.
Despite their importance to understanding primate evolution, the relationship between sexual selection and brain size evolution is not well studied.
We wanted to explore whether there was a relationship between the selective pressures that the E. coli core genome has been subjected to and genome expansion due to HGT since an association between purifying selection and genome size has previously been identified for microbial species in general [ 20].
Alternatively, if size optimization is at issue, the relationships between selection on size overall and on size of particular morphological features need to be taken into account [3], [39].
However, Bonduriansky and Day [ 12] specify a more complex relationship between selection on body size and traits by incorporating viability selection.
He did not find, however, the expected negative correlation between strength of selection and population size in these data.
We aimed to determine the relationships between habitat selection and home range size of 32 white-tailed deer (Odocoileus virginianus) females and spatial heterogeneity in forage and cover at multiple scales.
An ordered logit model is estimated to analyse empirically the relationship between treatment selection and: tumour stage, size and differentiation; the Feinstein index; Karnofsky performance status (KPS); and the patient's age, gender and marital and smoking status.
