Category Archives: quantitative genetics

How many genes does it take to make a new species?

Three-spined sticklebacks are speciation machines. When retreating glaciers exposed lakes and rivers around the coasts of northern North America and Eurasia, these armor-plated little fish colonized the new freshwater habitats from the ocean, and adapted to the threats and resources … Continue reading

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Posted in genomics, population genetics, quantitative genetics, speciation | Tagged , | 5 Comments

People behind the Science: Dr. Montgomery Slatkin

To honor his recent election to the National Academy of Sciences, we’re featuring Dr. Montgomery Slatkin of the University of California, Berkeley. Dr. Slatkin is known for his work in theoretical population genetics, in particular with regard to gene flow … Continue reading

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Selection keeps an extra-close eye on multi-functional genes

Genes that have roles in multiple traits—pleiotropic genes—have long been thought to be under stronger selection as a result of those multiple functions. The basic logic is that, when a gene produces a protein that has a lot of different … Continue reading

Posted in adaptation, genomics, quantitative genetics | Tagged , | 1 Comment

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

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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 then 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 | 2 Comments

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

Posted in community, population genetics, quantitative genetics, Uncategorized | 6 Comments

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 | 2 Comments

Want to share your code?

In this line of work, we have all encountered tasks that are tedious, time consuming, and repetitive.  (Or if not, maybe give it a bit more time.) When confronted with these situations, people tend to fall into one of two … Continue reading

Posted in bioinformatics, community, genomics, howto, methods, next generation sequencing, phylogenetics, population genetics, quantitative genetics, R, software, theory | 14 Comments

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

Posted in phylogenetics, quantitative genetics | Tagged | 5 Comments

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

Posted in conferences, population genetics, quantitative genetics, speciation, theory, Uncategorized | 3 Comments