A new method called topology weighting provides a visual summary of evolutionary relationships across the genome. This figure summarizes the relationships among 18 individual Heliconius butterflies from five distinct populations across a one million base-pair region of their genome. Each color represents a different tree of relationships among the populations. The strong excess of reddish colors in the middle of the region is due to an adaptive introgression event, in which a beneficial wing patterning allele from one species was acquired by another through hybridization, making these two species more closely related in this part of the genome than in other parts. Topology weighting could be used to explore the genomes of other species for similar signals. See Martin and Van Belleghem, pp. 429–438.


Education plays a vital role at every career stage. That’s why GSA has partnered with organizations that are dedicated to providing tools and programs for students and faculty alike. From education workshops to classroom materials, a range of resources enable members of our scientific community to share, collaborate, and learn together, strengthening our collective network and skills.

Enrich your coursework with primary literature

Primers in GENETICS make it easier for instructors to use cutting-edge research to demonstrate core competencies in the classroom.

Get a mentor for the switch to active learning

Many instructors want to use effective, evidence-based methods in their classrooms. But sometimes they need help getting started with these techniques. The Promoting Active Learning and Mentoring (PALM) network is helping to close this gap by providing grants to connect faculty and postdocs with mentors in active learning methods.

Discover the science of learning

CBE-Life Sciences Education (LSE) publishes peer-reviewed articles covering a breadth of life science education topics at the K-12, undergraduate, and graduate levels, making it a valuable resource for educators across many levels and disciplines.

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Craft undergraduate curricula

Looking for a reliable way to develop your undergraduate classes? Check out the Genetics Learning Framework, a list of vetted core concepts and learning objectives compiled by the GSA Education Committee.

Explore genetics classroom resources

Are you looking for inspiration for your genetics course? GSA PREP is a collection of laboratory and in-class exercises that use evidence-based teaching methods. Each of these resources was peer-reviewed and fits into the Genetics Learning Framework.

Discover education news and resources at Genes to Genomes


Want to teach eugenics history in your genetics class? Advice and resources to take the leap!

Guest post by Michele Markstein and Gregory Davis. A summary of the May 26, 2020 TAGC 2020 Online workshop, “Raising a Woke Generation of Geneticists: How and Why to Include Eugenics History in Genetics Classes.” In the wake of George Floyd’s murder by Minnesota police officers, the nation has been wrestling with how to identify and combat […]

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by Guest Author


Looking for teaching ideas? Check out genetics articles in CourseSource, Summer 2020

Guest post by Erin Vinson, University of Maine and Michelle Smith, Cornell University Are you teaching genetics and looking for some new ideas? Check out CourseSource, a peer-reviewed, open-access journal that publishes field-tested articles describing undergraduate biology activities. All the activities are aligned with learning goals written by life science professional societies, including GSA. Many […]

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by Guest Author

Community Voices

Understanding our eugenic past to take steps towards scientific accountability

Guest author Rori Rohlfs describes a unique classroom project for exploring the eugenic history of our field. I was a fourth-year graduate student when I found myself asking a librarian for the archives of the journal The Annals of Eugenics. I got to that point by climbing back through a chain of references on fundamental […]

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by Guest Author