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Tag Archives: Evolution
Shared patterns of genomic diversity across populations of distantly related taxa
Genomic diversity is shaped by the complex interplay between the effects of genetic drift and natural selection among populations. Several of these effects, especially those of linked selection at neutral sites, adaptive introgression, and barriers to migration (often called “genomic … Continue reading
Artificial connectivity … have we overlooked the native range?
Invasive species are problematic throughout the world’s ecosystems, down even to their very name which incites heated debates. Every month, studies are published that describe the genetic structure and gene flow of non-native species in their introduced ranges. Often, these … Continue reading
Posted in adaptation, conservation, evolution, natural history, phylogeography, population genetics
Tagged Biological Invasion, Ciona, Evolution, invasive species, marine, Sessile
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Humans, selection, evolution and ecological timescales … a potent cocktail
It’s been awhile since I last was able to write for TME. But, finally, I’ve stolen away some time to write about a recent study in Ecology Letters that I couldn’t put down once I started reading it. Yes, it’s about mating … Continue reading
Posted in adaptation, evolution, natural history, plants, population genetics, selection, theory
Tagged Evolution, mating system, pesticide, selection
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Conifer convergence
Convergent local adaptation is typically studied within a species or between closely related species. In these cases, it is perhaps not unexpected to observe parallel evolution due to common genetic variation, constraints, etc. Convergence between species is somewhat less studied, … Continue reading
Posted in adaptation, association genetics, genomics, plants, selection, Uncategorized
Tagged adaptation, convergence, Evolution
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Divergence and Linked Background Selection
We have widely discussed the reduction in neutral diversity due to demography and linked selection effects (e.g. selective sweeps and hitchhiking, or background selection) in several previous posts (e.g see here, here, and here). However, how linked selection affects neutral divergence … Continue reading
Posted in evolution, genomics, methods, selection, speciation, theory
Tagged ecological speciation, Evolution, genomics, Homo sapiens, natural selection, population genetics
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Microbes can rapidly evolve host-protective traits
One of the coolest studies I’ve come across so far this year is the fascinating story about microbe-mediated protection in worms by Kayla King et al. The bacterium Enterococcus faecalis normally causes mild disease in worms (Caenorhabditis elegans). After a week … Continue reading
Posted in evolution, microbiology, mutation
Tagged bacteria, competition, Evolution, experimental evolution, host-associated microbes, worms
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Live from #Evol2016 – highlights from Sunday and what to see on Monday June 20th
Day two was just as eventful – lots of exciting talks, getting some in-between-talk-fitness in sprinting through the aisles (only to be wrecked by deep fried macaroni and cheese balls at the poster session), and schmoozing with the who’s who in … Continue reading
The Great Migration and African-American Genomic History
Over 45 million African-Americans share a recent common history largely shaped by “The Great Migration” (1910-1970) from out of the Southern United States. And yet, the admixture history of the African-American community, and its consequences for public health are little … Continue reading
Posted in genomics, population genetics, United States
Tagged Evolution, gene flow, Illumina, NGS, population genetics, population structure
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