Data can be simulated for several scenarios, where population sizes, times of divergence, population size change and admixture can be specifically defined.
We pooled the mtDNA and microsatellite data together for analysis in IMa [ 38], which allowed for the estimation of several population parameters (Table 3), including descendant (N1 and N2) and ancestral (NA) population sizes, time of divergence and migration rates between each of the three populations recovered by the cluster analysis and PCA.
However little effort has been devoted to investigating how changes in natural selection regimes through anthropogenic perturbation affect the occurrence and size of genomic islands of divergence between diverging (now converging) species, and nothing is published about this to our knowledge.
Modern tools all attempt to handle the loss of collinearity, in recognition of the fact that collinearity (absence of rearrangements) is unlikely to be observed in collections of genomes of any significant size or degree of divergence.
They showed that linkage elevates invasion probabilities only over very short map distances, implying that physical linkage provides an insufficient explanation for both the abundance and size of islands of divergence.
> -wrap-foot> The goal of this study is to further characterize the sex chromosomes of S. tropicalis in terms of the size and level of divergence of the sex-specific region, and to compare molecular evolution and expression of sex-linked and nonsex-linked genes.
Also, avian genomes are smaller than those of other amniotes (Hillier et al. 2004; Organ et al. 2008), and if relative numbers of LCNS do not correlate with genome size or timing of divergence, then their presence may suggest differences in functionality or different genomic dynamics among the groups.
First, the WH program was run to estimate overall population sizes and time of divergence.
Given the contemporary Theta values [ 42] it was possible to extrapolate the relative increase or decrease in population size since the time of divergence.
This result is in contrast to a divergence hitchhiking model of speciation with gene flow whereby genome-wide divergence is achieved by expansion in the physical size of initial islands of divergence.
