The higher codon bias of the X-linked genes in D. pseudoobscura [ 30] might imply that effective population size of the X chromosomes in general is higher than 3/4 of the autosomal effective population size throughout the Drosophila genus; this effect could be due to a generally higher variance of reproductive success in males than females throughout Drosophila.
In addition, although Darwin did not extend his hypothesis above the level of genera, we added an analysis to test for a correlation between the number of genera per family and the mean number of species per genus (in effect, examining one level further up the taxonomic hierarchy than Darwin's original analysis).
We quantified the effect of taxonomy on substitution rate variation using a hierarchical ANOVA considering super-order, order, family and genus with random effects.
Results indicate that different AM fungi species even within the same genus have different effects on medicinal plant response to drought stress.
The set 1 of our correlation analysis, on the other hand, is restricted to a very particular phylogenetic clade, in the nematode Caenorhabditis genus, whose apparent effects of its individual components will be gradually discussed later as they appear at some structures analyzed here, and then eventually considered as a whole group.
Although they have not been described yet in the genus Senecio, their effect on the promoting of diploidized behavior could not be discarded.
In this study, we use genomic distance analyses, phylogenomic networks, tree topology comparisons, and Bayesian inference methods to investigate to what extent HGT has occurred during the evolution of the genus Rickettsia, the effect of the use of different genomic regions in estimating reticulate evolution and HGT events, and the link of these to host range.
Family was treated as a fixed effect, while genus, species and isolate were treated as nested random effects.
Increasing precipitation has a negative effect on genus richness, whereas topographic heterogeneity and increasing temperature both have positive effects.
Rabbits are able to eat the extremely poisonous mushrooms of the genus Amanita without ill effects.
