Ep. 337 - DNA Duplication & Plant Evolution
In Defense of Plants Podcast
In Defense of Plants
4.8 • 1.3K Ratings
🗓️ 3 October 2021
⏱️ 56 minutes
🧾️ Download transcript
Summary
In this episode, we journey back in time with the help of DNA and fossil evidence to learn what they can teach us about plant evolution. Specifically, we explore how genome duplication events has influenced the evolutionary history of gymnosperms. Joining us to talk about this is Dr. Greg Stull who has built his research career around being able to connect what we see in the present to what occurred in the past. This episode was produced in part by Lor, Monika, Brandon, Jeremy, Suzanne, Kristina, Christine, Silas, Michael, Aristia, Felicidad, Lauren, Danielle, Allie, Jeffrey, Amanda, Tommy, Marcel, C Leigh, Karma, Shelby, Christopher, Alvin, Arek, Chellie, Dani, Paul, Dani, Tara, Elly, Colleen, Natalie, Nathan, Ario, Laura, Cari, Margaret, Mary, Connor, Nathan, Jan, Jerome, Brian, Azomonas, Ellie, University Greens, Joseph, Melody, Patricia, Matthew, Garrett, John, Ashley, Cathrine, Melvin, OrangeJulian, Porter, Jules, Griff, Joan, Megan, Marabeth, Les, Ali, Southside Plants, Keiko, Robert, Bryce, Wilma, Amanda, Helen, Mikey, Michelle, German, Joerg, Cathy, Tate, Steve, Kae, Carole, Mr. Keith Santner, Lynn, Aaron, Sara, Kenned, Brett, Jocelyn, Ethan, Sheryl, Runaway Goldfish, Ryan, Chris, Alana, Rachel, Joanna, Lori, Paul, Griff, Matthew, Bobby, Vaibhav, Steven, Joseph, Brandon, Liam, Hall, Jared, Brandon, Christina, Carly, Kazys, Stephen, Katherine, Mohsin Kazmi Takes Pictures, Manny, doeg, Daniel, Tim, Philip, Tim, Lisa, Brodie, Bendix, Irene, holly, Sara, and Margie.
See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.
Transcript
Click on a timestamp to play from that location
| 0:00.0 | Hello everyone and welcome to the Indefense of Plants podcast, the official podcast of Indefenseauplants.com. What's up? This is your host, Matt. Welcome to the show. How's everyone doing this week? Today, we're going to be diving into the evolutionary history of gymnosperms, and we're going to be doing it through the lens of genetics. But as you're going to hear, the kinds of conclusions you can make realize on more than just DNA. |
| 0:21.1 | It involves fossil evidence, current evidence, actual field botany, those sorts of things. |
| 0:26.7 | Joining us to talk about this is Dr. Greg Stoll. |
| 0:29.3 | He is an evolutionary plant biologist who is currently specializing on the evolutionary history of gymnosperms. |
| 0:35.3 | And what you're going to hear is pretty remarkable. |
| 0:37.8 | And it tells a much more interesting story than I ever imagined. So I don't want to keep you from |
| 0:43.1 | it any longer. Let's just jump right into it. Without further ado, here's my conversation with |
| 0:47.7 | Dr. Stoll., it is so great to have you on the podcast. I'm really excited to talk to you today. So first, let's start out by introducing yourself. Tell everyone a little bit about who you are and what it is you do. Yeah, thanks for the introduction. |
| 1:15.2 | It's awesome to be here. So yeah, my name is Greg and I am a evolutionary plant biologist. |
| 1:20.7 | I am broadly interested in the evolutionary history of plants. So when major groups originated, |
| 1:27.2 | how and why they diversified and spread across |
| 1:29.8 | the earth, how they have been kind of impacted by climate change and other geologic events. |
| 1:35.0 | And I'm interested in it from different perspectives. And so I study the fossil record. So I'm kind |
| 1:41.0 | of part paleobotanist, but then I also sequence DNA and use that to build |
| 1:46.0 | phylogenic trees showing how species are related and kind of try to integrate that to get a, |
| 1:51.7 | you know, a nice picture of plant evolution and kind of a broad sense. Yeah, it's really awesome. |
| 1:57.5 | And one of the main reasons I was excited to get you on is you go through your Google |
| 2:01.2 | scholar page when I found out about the work you've been doing and I looked down the Google Scholar |
| 2:05.3 | citation list and it was like fossil stuff genetic stuff evolutionary stuff but always you know |
| 2:09.3 | couched in this bigger idea of like biogeography changes diversification and stuff and I was like |
| 2:14.2 | wow that is an impressive combination of skill sets because, |
| 2:17.6 | you know, generally speaking, you find people that kind of specialize in one of those fields. |
... |
Please login to see the full transcript.
Disclaimer: The podcast and artwork embedded on this page are from In Defense of Plants, and are the property of its owner and not affiliated with or endorsed by Tapesearch.
Generated transcripts are the property of In Defense of Plants and are distributed freely under the Fair Use doctrine. Transcripts generated by Tapesearch are not guaranteed to be accurate.
Copyright © Tapesearch 2026.