Over time, divergence evolves rapidly, due primarily to the origin of new divergent regions.
Here, we compare full genome sequences of 32 butterflies, representing five species from a hybridizing Heliconius butterfly community, to examine genome-wide patterns of introgression and infer how divergence evolves during the speciation process.
We next examined how genome-wide divergence evolves over time.
The preceding results indicate that significant among-population divergence evolved in at least two of the seven treatment groups.
The functional alterations under the positive selected functional divergence evolved the complexity of the VFTMs of class C GPCRs.
Our results provide unique insights into (1) what defines genomic regions of divergence associated with speciation, (2) how divergence evolves over time, (3) what the targets of selection are at the genetic level, and (4) the repeatability of this process.
In contrast, Nembaware and coworkers analyzed the evolutionary rates of human paralogs with varying levels of divergence and found that, in human vs. mouse comparison, a particular class of paralogs with intermediate divergence evolved significantly faster than singletons [ 22].
We found that approximately half of all amino acid substitutions since the human macaque divergence evolved under positive selection (0.57 and 0.53 on average for 221 and 51 gene data sets, respectively).
Recent studies have documented genome-wide patterns of divergence between closely related sister taxa (Ellegren et al., 2012; Kulathinal et al., 2009; Lawniczak et al., 2010; Nadeau et al., 2013; Neafsey et al., 2010; Staubach et al., 2012; Turner et al., 2005), but the fundamental question of how divergence evolves throughout the process of speciation remains largely unexplored.
Divergence is evolving between community and individual approaches to HIV prevention.
