Format

Send to

Choose Destination
Genetica. 2006 May;127(1-3):217-29.

Adaptive evolution in a spatially structured asexual population.

Author information

1
Instituto Gulbenkian de Ciências, P-2781-901, Oeiras, Portugal.

Abstract

We study the process of adaptation in a spatially structured asexual haploid population. The model assumes a local competition for replication, where each organism interacts only with its nearest neighbors. We observe that the substitution rate of beneficial mutations is smaller for a spatially structured population than that seen for populations without structure. The difference between structured and unstructured populations increases as the adaptive mutation rate increases. Furthermore, the substitution rate decreases as the number of neighbors for local competition is reduced. We have also studied the impact of structure on the distribution of adaptive mutations that fix during adaptation.

PMID:
16850226
DOI:
10.1007/s10709-005-4012-9
[Indexed for MEDLINE]

Supplemental Content

Full text links

Icon for Springer
Loading ...
Support Center