Tag Archives: fitness landscapes

Visualizing coevolution in dynamic fitness landscapes

This post and video is by postdoc Bjørn Østman and graduate student Randy Olson, both at Michigan State University. The fitness landscape is the framework for thinking about evolutionary processes the same way the phylogenetic tree is how we think about … Continue reading

Posted in BEACON Researchers at Work | Tagged , , , | Comments Off

Using fitness landscapes to visualize evolution in action

BEACONites Bjørn Østman and Randy Olson created a video to visualize evolution in action using fitness landscapes. Read about it below! Fitness landscapes were invented by Sewall Wright in 1932. They map fitness, or reproductive success, of individual organisms as a function … Continue reading

Posted in BEACON Researchers at Work | Tagged , , , , | Comments Off

BEACON Researchers at Work: Holey Fitness Landscapes

This week’s BEACON Researchers at Work post is by MSU postdoc Bjørn Østman, and is also posted on his research website. What do real fitness landscapes look like? Do they look more like the image on the left, a nearly-neutral holey … Continue reading

Posted in BEACON Researchers at Work | Tagged , , , | Comments Off

Evolution 101: Fitness Landscapes

This week’s Evolution 101 blog post is by MSU postdoc Arend Hintze and MSU graduate student Randy Olson. While fitness landscapes are generally thought to be more of a theoretical construct, they are in fact quite tangible and underly every … Continue reading

Posted in Evolution 101 | Tagged , , , | Comments Off

Evolution 101: Epistasis

This week’s Evolution 101 post is by MSU postdoc Bjørn Østman. Bjørn also blogs at Pleiotropy. What is epistasis? Epistasis is a measure of the strength of epistatic interactions. Epistatic interactions are non-additive interactions between alleles, loci, or mutations. That is, … Continue reading

Posted in Evolution 101 | Tagged , , , | Comments Off