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Conservation genomics: adaptation and gene flow

Published on January 31, 2023   46 min

A selection of talks on Genetics & Epigenetics

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0:00
Hello, my name is Jacob Hoglund. I'm a professor of Ecology and Genetics at Uppsala University in Sweden. It's a pleasure for me to give this talk on conservation genomics, and my topic today is on adaptation and gene flow. I would like to say that the title genomics could actually be changed to genetics because the whole theory rests on population genetics. But of course, genomics is more modern and gives you more fine tuned data that we can analyze nowadays than we used to be in the past.
0:37
I would like to begin by this statement here: environmental change is ubiquitous. That is that life on Earth has and always will change. If you want to find evidence of that, like I do here, you can go out to the hallway of my department and what you find there in the staircase is shown in this picture I took a couple of days ago. What you see is remnants of Nautiloid cephalopods from the lower middle Ordovician of Sweden, and my colleagues in the paleontology department, they suspect that this stuff is from a quarry at a place called Brunflo, near Östersund in central Sweden. Of course, these organisms do not exist in Sweden nowadays, they went extinct millions of years ago. You'll see a T-Rex replica that you can find in the Evolution Museum here at Uppsala University, and of course, this species doesn't roam around the globe like they used to in the past. What this shows is that organisms change via four different mechanisms basically. These are mutation, something called genetic drift that I would explain later, gene flow and population structure, and finally selection. In my lecture today I will go through and explain how organisms adapt to a changing environment. The basic tenet of this talk is that

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Conservation genomics: adaptation and gene flow

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