Please use this identifier to cite or link to this item: https://hdl.handle.net/1959.11/5733
Title: Bottlenecks, population differentiation and apparent selection at microsatellite loci in Australian 'Drosophila buzzatii'
Contributor(s): Barker, JSF  (author)orcid ; Frydenberg, Jane (author); Gonzalez, Josefa (author); Davies, Hylton I (author); Ruiz, Alfredo (author); Sorensen, Jesper G (author); Loeschcke, Volker (author)
Publication Date: 2009
DOI: 10.1038/hdy.2008.127
Handle Link: https://hdl.handle.net/1959.11/5733
Abstract: Species colonizing new areas disjunct from their original habitat may be subject to novel selection pressures, and exhibit adaptive genetic changes. However, if colonization occurs through a small number of founders, the genetic composition of the colonized population may differ from that of the original population simply due to genetic drift. Disentangling the effects of founder drift and selection after colonization is crucial to understanding the adaptive process. 'Drosophila buzzatii' colonized Australia some 600–700 generations ago, and spread rapidly over a wide geographical range. Genetic variation for 15 microsatellite loci in each of nine populations in eastern Australia was used to estimate the size of the bottleneck, and to determine if any of these microsatellites marked genomic regions subject to recent selection. We estimate that on its introduction to Australia, 'D. buzzatii' went through a moderate bottleneck (approximately 30–40 founders).
Publication Type: Journal Article
Source of Publication: Heredity, 102(4), p. 389-401
Publisher: Nature Publishing Group
Place of Publication: United Kingdom
ISSN: 1365-2540
0018-067X
Fields of Research (FoR) 2008: 060411 Population, Ecological and Evolutionary Genetics
Socio-Economic Objective (SEO) 2008: 970106 Expanding Knowledge in the Biological Sciences
Peer Reviewed: Yes
HERDC Category Description: C1 Refereed Article in a Scholarly Journal
Appears in Collections:Journal Article

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