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Author Archives: Stacy Krueger-Hadfield
Show me the power
Describing the patterns of genetic structure and mating system variation in presents challenges from the outset of sample collection to data analysis (see this post and this post). At the beginning of February, I had the pleasure to collaborate with Sean … Continue reading
Posted in conservation, evolution, genomics, interview, methods, population genetics, software, Uncategorized
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Interspecific gene flow enhances vectorial capacity
There are charismatic cases of gene flow between species, such as Neanderthals (see also Arun’s posts here and here), but the role of introgression in evolution remains poorly documented. Recently diverged species have incomplete reproductive isolation and can hybridize. Rapid … Continue reading
Posted in adaptation, bioinformatics, evolution, genomics, phylogenetics, Uncategorized
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Beauty is in the eyes of the beholder
Many animals use visual signals to scope out potential mates. In a new paper in Molecular Ecology, Sandkam et al. (2015) demonstrate that the variation underlying preference in female guppies could be explained by simple changes in expression and coding of … Continue reading
From crocodiles to coconuts
The first plant trypanosomatids were discovered in plant tissues over 100 years ago, but we know very little about their biology, life cycle or how they have adapted to life inside plants. Jaskowska et al. (2015) provide a review of … Continue reading
Posted in adaptation, Coevolution, evolution, genomics, natural history
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The paludicolous life: peatmosses and pH
High dispersal should counteract local adaptation by continuously redistributing genetic variability. In the bryophyte Sphagnum warnstorfii, the North Atlantic may not be as formidable a barrier as expected. Spores may traverse the Atlantic Ocean to North America from Europe and vice … Continue reading
Posted in Uncategorized
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Sex chromosome evolution … in haploids, that is
In diploid organisms, the rates of mutation and recombination played a pivotal role in the evolution of sex-determining regions and, thus, sex chromosomes. We know quite a bit theoretically and empirically in XY systems in mammals and ZW systems in … Continue reading
Posted in evolution, mutation
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A population genetic R-evolution
Uphill, both ways, in the snow, without shoes … quite apt when thinking of the dark days, in the not too distant past, in which a separate input file was needed for each popgen analysis in order to use a … Continue reading
Posted in howto, methods, population genetics, R, software, Uncategorized
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