2003
DOI: 10.1038/sj.hdy.6800305
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Microspatial structure of Drosophila melanogaster populations in Brazzaville: evidence of natural selection acting on morphometrical traits

Abstract: Two genetically distinct habitat races of Drosophila melanogaster coexist in Brazzaville (Congo). One is the typical field type of Afrotropical populations, the other mainly breeds in beer residues in breweries. These two populations differ in their ethanol tolerance, in their allelic frequencies at several enzyme and microsatellite loci and in the composition of their cuticular hydrocarbons. The brewery population is quite similar to European temperate populations with regard to all these traits. Previous inv… Show more

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Cited by 13 publications
(15 citation statements)
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“…Classic examples of very local genetic differentiation exist for alcohol tolerance adaptation in wineries (McKenzie & Parsons, 1974;Vouidibio et al, 1989;Hoffmann & McKechnie, 1991;McKechnie & Geer, 1993;Karan, Prakash & David, 1999;Haerty et al, 2003). Data are less abundant, and more variable, for microspatial differentiation of morphological traits.…”
Section: Discussionmentioning
confidence: 96%
See 1 more Smart Citation
“…Classic examples of very local genetic differentiation exist for alcohol tolerance adaptation in wineries (McKenzie & Parsons, 1974;Vouidibio et al, 1989;Hoffmann & McKechnie, 1991;McKechnie & Geer, 1993;Karan, Prakash & David, 1999;Haerty et al, 2003). Data are less abundant, and more variable, for microspatial differentiation of morphological traits.…”
Section: Discussionmentioning
confidence: 96%
“…As there was no interaction between any terms for geographic location and temperature, data are averaged across temperatures. abdominal pigmentation (Haerty et al, 2003); but not for ovariole number (Capy et al, 2000) or for sternopleural bristle number between the same populations. In contrast, comparisons between flies collected at the periphery and center of a Tunisian oasis demonstrated consistent differences for ovariole number and for abdominal and sternopleural bristle number, but not for wing length (Eid-Dib et al, 1993).…”
Section: Discussionmentioning
confidence: 98%
“…Our result of a more pronounced population structure in African D. simulans than D. melanogaster implies that the demographic history may differ between both species. In D. melanogaster, several studies found that African populations were recently experiencing admixture from non-African populations (Capy et al 2000;Haerty et al 2002Haerty et al , 2003Kauer et al 2003). In D. simulans, both subdivision of the ancestral populations and more recent admixture of divergent lineages during the out-of-Africa expansion of this species have been discussed to explain the observed strong haplotype structure of cosmopolitan D. simulans populations (Hamblin and Veuille 1999).…”
Section: Discussionmentioning
confidence: 99%
“…Nevertheless, it has also become apparent that even African populations are not in equilibrium, and evidence for population bottlenecks (Dieringer et al 2005;Haddrill et al 2005), population expansions (Glinka et al 2003;Baudry et al 2006;Pool and Aquadro 2006; Schö fl and Schlö tterer 2006), and non-African admixture (Capy et al 2000;Haerty et al 2002Haerty et al , 2003Haerty et al , 2005Kauer et al 2003) were found. Given this complex demographic past of 1 African populations and the difficulties to determine a distinct ancestral range for the two species (Dean and Ballard 2004;Baudry et al 2006;Kopp et al 2006;Pool and Aquadro 2006), we studied multiple populations covering a broad geographic range in Africa and compared the pattern of molecular variation.…”
mentioning
confidence: 99%
“…Indeed, its natural populations are highly differentiated spatially (David and Capy, 1988) and a diversity of geographic patterns have been observed. Short distance variations have been observed in various parts of the world, generally in relation with alcoholic resources and adult behavioral preferences (Karan et al, 1999b;Haerty et al, 2003). Long distance variations may be related to diffusion processes (Gockel et al, 2001), such as a longitudinal trend (Capy et al, 1994;Aulard et al, 2002).…”
Section: Introduction; Sampling Natural Populationsmentioning
confidence: 99%