Science at UM [S03-ep26]: 60 billion combinations of genetic variants

[Podcast] - Published on May 16, 2024 in Science and Society

This week on *A l’UM la science*, Gabriel Krouk, a biologist atIPSIM, and André Mas, a mathematician atIMAG, discuss a world first: mapping the interactions between genetic variants in a plant. Caroline Ducourau, head of the Heritage Department, is our last-minute guest. She introduces us to the exhibition Chongqing, on the Four Banks of Passing Time, by Cyrus Cornut, on view at the Orangerie in the Jardin des Plantes. A program co-produced with Divergence FM and broadcast every Wednesday at 6 p.m. on 93.9.

From the introduction of the concept of the gene and the laws of heredity in 1865, through the discovery of the structure of DNA by Rosalind Franklin, Watson, and Crick in 1953, to the achievements of modern genomics, genetic research has never been able to shake off the fantasies it evokes in the general public. From *Welcome to Gattaca* to *Equilibrium* in cinema, or Orwell and Huxley in literature, dystopias depicting humanity in a eugenic society have continually fueled our imaginations.

Paradoxically, in recent years, the internet has been flooded with offers from American companies, such as MyHeritage and 23andMe, promising to provide a detailed breakdown of your ethnic origins based on a DNA analysis or to reveal your own fate by predicting the diseases hidden within your genes. “Really? You can do that?” Yes, you can, and we won’t explain today why this recreational use of DNA isn’t medicine or how likely your data is to be sold or hacked. Instead, we’ll explain how scientists can analyze markers in our DNA to predict our diseases or trace our origins.

Even better! Our guests today will explain how they managed to develop, using plant DNA, a method that combines mathematics, genetics, and high-performance computing to create maps detailing tens of billions of interactions between genetic variants for a specific trait—a world first published in the journal *Genome Biology* on March 25.

In the studio with Gabriel Krouk, a researcher at the Montpellier Institute of Plant Sciences, and Andre Mas, a researcher at the Montpellier Alexander Grothendieck Institute.

Our guest for the final three minutes will be Caroline Ducoureau, head of the Heritage and Scientific Culture Department. She will introduce us to the latest exhibition on view at the Jardin des Plantes through May 26: “Chongqing: On the Four Banks of Time,” by Cyrus Cornut , which can be seen through May 26 as part of the Boutographies photography festival.

At UM Science, you’ve got the program—let’s get started!

Co-production: Divergence FM / University of Montpellier
Host: Lucie Lecherbonnier
Interview: Aline Périault / Lucie Lecherbonnier
Production: Alice Rollé / Tom Chevallier

Tune in to the show “A l’UM la science” on Divergence FM 93.9

Keywords: Science at UM, Research, Science, Company