5 documents found, page 1 of 1
Looking into the black box: simulating the role of self-fertilization and morta...
Johansson, M. L.; Raimondi, P. T.; Reed, D. C.; Coelho, N. C.; Serrão, Ester; Alberto, F.Patterns of spatial genetic structure (SGS), typically estimated by genotyping adults, integrate migration over multiple generations and measure the effective gene flow of populations. SGS results can be compared with direct ecological studies of dispersal or mating system to gain additional insights. When mismatches occur, simulations can be used to illuminate the causes of these mismatches. Here, we report a ...
High and distinct range-edge genetic diversity despite local bottlenecks
Assis, J.; Castilho Coelho, N.; Alberto, F.; Valero, Myriam; Raimondi, P. T.; Reed, D. C.; Serrão, EsterThe genetic consequences of living on the edge of distributional ranges have been the subject of a largely unresolved debate. Populations occurring along persistent low latitude ranges (rear-edge) are expected to retain high and unique genetic diversity. In contrast, currently less favourable environmental conditions limiting population size at such range-edges may have caused genetic erosion that prevails over...
Isolation by oceanographic distance explains genetic structure for Macrocystis ...
Alberto, F.; Raimondi, P. T.; Reed, D. C.; Watson, J. R.; Siegel, D. A.; Mitarai, S.; Coelho, N. C.; Serrão, EsterOcean currents are expected to be the predominant environmental factor influencing the dispersal of planktonic larvae or spores; yet, their characterization as predictors of marine connectivity has been hindered by a lack of understanding of how best to use oceanographic data. We used a high-resolution oceanographic model output and Lagrangian particle simulations to derive oceanographic distances (hereafter ca...
Habitat continuity and geographic distance predict population genetic different...
Filipe, A.; Raimondi, P. T.; Reed, D. C.; Coelho, Nelson; Raphael, L.; Allison, W.; Serrão, EsterIsolation by distance (IBD) models are widely used to predict levels of genetic connectivity as a function of Euclidean distance, and although recent studies have used GIS-landscape ecological approaches to improve the predictability of spatial genetic structure, few if any have addressed the effect of habitat continuity on gene flow. Landscape effects on genetic connectivity are even less understood in marine ...
Microsatellite markers for the giant kelp macrocystis pyrifera
Alberto, F.; Whitmer, A.; Coelho, N. C.; Zippay, M.; E, Varela-Álvarez; Raimondi, P. T.; Reed, D. C.; Serrão, EsterWe report the isolation and characterization of 16 microsatellite loci to study the population genetics of the giant kelp, Macrocystis pyrifera. Markers were obtained by screening a genomic library enriched for microsatellite motifs. Of the 37 primer pairs defined, 16 amplified clean polymorphic microsatellites and are described. These loci identified a number of alleles ranging from three to forty (mean = 16.5...