2002
DOI: 10.1046/j.1365-294x.2002.01586.x
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The influence of mating system, demography, parasites and colonization on the population structure ofBiomphalaria pfeifferiin Madagascar

Abstract: Current evolutionary forces and historical processes interact to shape the distribution of neutral genetic variability within and among populations. Focusing on the genetics of recently introduced organisms offers a good opportunity to understand the relative importance of these factors. This study concerns variation at 8 polymorphic microsatellite loci in 30 populations of Biomphalaria pfeifferi. The sampling area spans most of the species' range in Madagascar where it was probably introduced recently. Extrem… Show more

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Cited by 41 publications
(50 citation statements)
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References 81 publications
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“…Strong differentiation was detected among populations with a strikingly high value of F ST (0.74) given the small geographical scale. This is even higher than the value reported by Charbonnel et al (2002b) at similar geographic scale (0.57), and consistent with values reported in other selfing snail species (for example, Viard et al, 1997;Trouvé et al, 2003). However, populations were not isolated by distance.…”
Section: Neutral Variation In a Selfersupporting
confidence: 91%
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“…Strong differentiation was detected among populations with a strikingly high value of F ST (0.74) given the small geographical scale. This is even higher than the value reported by Charbonnel et al (2002b) at similar geographic scale (0.57), and consistent with values reported in other selfing snail species (for example, Viard et al, 1997;Trouvé et al, 2003). However, populations were not isolated by distance.…”
Section: Neutral Variation In a Selfersupporting
confidence: 91%
“…Intestinal schistosomiasis, which is due to S. mansoni (transmitted by Table 2 Population polymorphism at five microsatellite loci over the seven studied populations of B. pfeifferi Phenotypic and molecular differentiation in B. pfeifferi Y-NT Tian-Bi et al B. pfeifferi), is today the only form of the disease in the Man area (Raso et al, 2005). B. pfeifferi has probably been introduced recently, as it has been in other areas (for example, Madagascar; Charbonnel et al, 2002b). Invasion is a further source of bottlenecks, and therefore of lower variability within populations (Wares et al, 2005;Keller and Douglas, 2008), though not of marked differentiation at such a geographic scale.…”
Section: Neutral Variation In a Selfermentioning
confidence: 99%
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“…Although not part of the selfing syndrome per se, the distribution of genetic variability should be considered when analysing the selfing syndrome, because it drives the evolution of life-history traits (Charlesworth & Charlesworth, 1995). B. pfeifferi indeed displays limited neutral variability, even at large geographic scales (Charbonnel et al, 2002 a-c). The current study suggests that the amount of phenotypic variation may substantially vary among populations, QTT exhibiting significantly more variation in most traits than DOY (results not shown).…”
Section: (C) Limited Mating Activitymentioning
confidence: 64%
“…Whereas the rates and patterns of recovery of plant communities have been extensively studied, including that of the Mekong Delta (Hong 1996), there is a paucity of information on the rates of recovery of genetic diversity. Although some animal populations have recovered rapidly after drastic bottlenecks or local extinction (Barber et al 2002, Charbonnel et al 2002, Colson & Hughes 2004, reduced genetic diversity may persist much longer in some tree populations exhibiting low dispersal and high variance in reproductive success among parents in the source population (Sezen et al 2005).In the present study we reconstructed the rate of genetic recovery of the hermaphroditic mangrove Avicennia alba population in the Mekong Delta 3 decades after the end of the Vietnam War. The case of A. alba is particularly relevant because: (1) it is an important member of the Mekong Delta mangrove community; (2) recovery took place naturally (not planted); and (3) Avicennia species are characterized as pioneer species, the first to colonize empty sea fronts, and thereby are particularly relevant for a recolonization study conducted over the first decades post-disturbance, since these species may provide a conservative estimate of the time needed for recovery, expected to take even longer for later successional species.…”
mentioning
confidence: 95%