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.

Photo by Ousa Chea on Unsplash

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

2021 Jones Award: Edward J. Smith-image

2021 Jones Award: Edward J. Smith

Ed Smith knows the power of having footsteps to follow. Six of his older brothers earned PhDs, he says, and observing their experiences helped him set his course. “It was important to me to learn...

Read more »

by Caroline Seydel

Unwritten rules of applying for postdocs-image

Unwritten rules of applying for postdocs

Insider tips on how to make your postdoc application stand out from the pack. Guest post by B. Duygu Özpolat. While some graduate students have resources and institutional support to help them navigate the transition...

Read more »

by Guest Author

GSA partners with the Personal Genetics Education Project for inclusive public engagement on genetics-image

GSA partners with the Personal Genetics Education Project for inclusive public engagement on genetics

The Genetics Society of America (GSA) and the Personal Genetics Education Project (pgEd) of Harvard Medical School announce a new partnership to build public dialogue about genetic technologies. Their joint program aims to better equip...

Read more »

by Editorial Staff