Lucentlands Podcast | Harvesting Agriculture Knowledge
Aug 12, 2026 · 1 hr 4 min · 14 segments
In this episode, hosts Dewald Kirsten and Louise Brodie speak with Dr Renee Prins, Founder and Director of CenGen (Pty) Ltd, about the role of molecular genetics and DNA technology in agriculture. Dr…
Renee PrinsGuest
Dewald KirstenHost
Louise BrodieHost
Um, molecular genetics, um, I was only introduced to DNA technology when I was doing my PhD in ni- between '94 and '98.

And we had to characterize a specific gene segment very well, and the only way we could do it was to look at DNA.

And when I was introduced to DNA technology at such a late stage in my re- uh, li- scientific career, I actually realized that is my passion because it's such a powerful tool.

Um, and although the rest of the world already in the early '90s, um, implemented these tools in, um, agriculture and making it very applied, I'll explain now how we do it, we were really lagging behind.

So some of the markers, DNA markers associated with important genes, were utilized by colleagues all over the...

And it was done in my PhD project, was utilized by colleagues all over the world except in South Africa, and that frustrated me incredibly.

So what you can do is if you can look on a DNA level whether there's a advantageous gene or not present in a specific plant, then, um, you can select that specific plant and advise the breeders to pr- to work with that plant specifically f- um, in their breeding program.

While you often have many plants there that is taking up space, it is very expensive to occupy, to have plants in greenhouses and tunnels that don't carry the desirable genes.

But often these genes can only be measured for their presence when they can, um, are adult plants.

But now at the seedling stage, we can look, take a s- piece of leaf, extract the DNA, and tell the breeder that this is the, um, good plants to retain and chuck out the rest.

It, it is, it is such a fascinating thing and, and I think the way the world is evolving now with new cultivars and be it, like you, you guys do a lot of work in grains and also the fruit industry, is that it is p-

Um, molecular genetics, um, I was only introduced to DNA technology when I was doing my PhD in ni- between '94 and '98.

And we had to characterize a specific gene segment very well, and the only way we could do it was to look at DNA.

And when I was introduced to DNA technology at such a late stage in my re- uh, li- scientific career, I actually realized that is my passion because it's such a powerful tool.

Um, and although the rest of the world already in the early '90s, um, implemented these tools in, um, agriculture and making it very applied, I'll explain now how we do it, we were really lagging behind.

So some of the markers, DNA markers associated with important genes, were utilized by colleagues all over the...

And it was done in my PhD project, was utilized by colleagues all over the world except in South Africa, and that frustrated me incredibly.

So what you can do is if you can look on a DNA level whether there's a advantageous gene or not present in a specific plant, then, um, you can select that specific plant and advise the breeders to pr- to work with that plant specifically f- um, in their breeding program.

While you often have many plants there that is taking up space, it is very expensive to occupy, to have plants in greenhouses and tunnels that don't carry the desirable genes.

But often these genes can only be measured for their presence when they can, um, are adult plants.

But now at the seedling stage, we can look, take a s- piece of leaf, extract the DNA, and tell the breeder that this is the, um, good plants to retain and chuck out the rest.

It, it is, it is such a fascinating thing and, and I think the way the world is evolving now with new cultivars and be it, like you, you guys do a lot of work in grains and also the fruit industry, is that it is p-
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