Several species are composed of multiple, genetically distinctive lineages (in some cases, incipient or new species) due to independent colonization histories from distinct, divergent source populations.
Within the Florida Keys, structure was observed in damselfish over a few meters and attributed to either a local genetic bottleneck [39] or recruitment from genetically divergent source populations, such as the Bahamas and Western Caribbean [27].
Another way is to acquire new genes from a divergent source, such as lateral gene transfer in prokaryotes.
Finally, because no coating or external divergent source is required, domain mapping could also be achieved using DMS with microfocusing.
If, however, the source is an external divergent source close to the sample, the observed diffraction produces lines.
So, it may further indicate shared ancestry of those individuals among multiple groups and they may be admixed as a result of outbreeding of multiple divergent source stocks.
Intraspecific hybridization can also contribute to adaptive success in cases where invasive weeds experienced multiple introductions from divergent source populations (Bossdorf et al. 2005; Dlugosch and Parker 2008).
However, given that long distance dispersal events seem to occur occasionally in this species, it is also possible that dispersal from genetically divergent source populations (perhaps populations now extinct) could explain the high levels of genetic divergence between these populations.
Instead, the divergent source is provided by the diffuse scatter arising from a disruption in the long-range order of the crystal such as structural defects or crystal-surface truncation.
High levels of genetic diversity in the early process of invasion may result from a single introduction of a large number of individuals or from multiple introductions from genetically divergent source populations (Sakai et al. 2001; Allendorf and Lundquist 2003).
