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Category Archives: quantitative genetics
People behind the Science: Dr. Charles Goodnight
This month, we touch on the always-exciting topic of multilevel selection in our Q&A feature with Dr. Charles Goodnight of the University of Vermont. In addition to his work on multi-level selection, Dr. Goodnight has also studied the effects of founder … Continue reading
Posted in interview, population genetics, quantitative genetics
Tagged Charles Goodnight
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On “triangulation” in genome scans
Guest contributor K.E. Lotterhos is a marine biologist at Wake Forest University, who studies evolutionary responses to fishing and climate change. You can find her on Twitter under the handle @dr_k_lo. A major goal of evolutionary biology is to understand the genetic … Continue reading
Posted in adaptation, association genetics, genomics, methods, population genetics, quantitative genetics
Tagged evolve-and-resequence, Fst, GEA, GWAS
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How prevalent are non-overlapping generations?
Recently, the question of how prevalent in nature are truly non-overlapping generations has piqued my interest. There are many methodologies which make the assumption that generations are non-overlapping. Or in other cases, it is a simplification we may make to … Continue reading
Random drift and phenotypic evolution
This week we have a guest post from Markku Karhunen. Markku’s research at the University of Helsinki included the development and implementation of a number of very interesting and useful population genetics methods. In his guest post Markku discusses these … Continue reading
Posted in adaptation, methods, population genetics, quantitative genetics, R, software, Uncategorized
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Will climate change be more relentless than evolution?
Ask any biologist what she considers the most urgently important example of adaptive evolution, and—even if she isn’t currently writing a grant proposal—she’ll probably mention global climate change. More than a century of pumping greenhouse gasses into Earth’s atmosphere has … Continue reading
Evolution 2013 Recap
As we all slowly trickle back from the recent SSE meeting in Snowbird, we’ll each be posting our own thoughts and summaries of the conference. I personally had a fantastic time, met a lot of great people, and saw a … Continue reading
What we're reading: The origins of Hardy-Weinberg equilibrium, GWAS of "educational attainment", and the trouble with impact metrics
In the journals Hardy, G.H. 1908. Mendelian proportions in a mixed population. Science 28: 49. doi: 10.1126/science.28.706.49. Suppose that Aa is a pair of Mendelian characters, A being dominant, and that in any given generation the numbers of pure dominants … Continue reading
Relentless Evolution: The vital relevance of the visible
The Molecular Ecologist receives a small commission for purchases made on Bookshop.org via links from this post. One of Stephen Jay Gould’s sharpest conceptual coinages was a barb leveled, from his paleontological perspective, at the body of research focused on bouts of adaptive … Continue reading
Where's the heritability? Right where you'd expect—if you look close enough
Biologists have at our disposal two major ways to assess how much genetics contributes to variation in the most interesting traits, or phenotypes, of our favorite study organisms—that is, the heritability of those phenotypes. There’s what you might call the … Continue reading
Posted in quantitative genetics
Tagged heritability, missing heritability, multiplex phenotyping, yeast
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