Abstract：
:When a local colonization in a new niche occurs, the new derived population should be subject to different selective pressures from that in the original parental population; consequently it is likely that many loci will be subject to directional selection. In such a quick adaptation event through environmental changes, it is reasonable to consider that selection utilizes genetic variations accumulated in the precolonization phase. This mode of selection from standing variation would play an important role in the evolution of new species. Here, we developed a coalescent-based simulation algorithm to generate patterns of DNA polymorphism in both parental and derived populations. Our simulations demonstrate that selection causes a drastic change in the pattern of polymorphism in the derived population, but not in the parental population. Therefore, for detecting the signature of local adaptation in polymorphism data, it is important to evaluate the data from both parental and derived populations simultaneously.
journal_name
Geneticsjournal_title
Geneticsauthors
Innan H,Kim Ydoi
10.1534/genetics.108.086835subject
Has Abstractpub_date
2008-07-01 00:00:00pages
1713-20issue
3eissn
0016-6731issn
1943-2631pii
genetics.108.086835journal_volume
179pub_type
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