voiceover well, my brother and i were sitting on a tropical beach, watching a dog walk by, and we just asked the question, you know, what is that dog? It’s a key population because it’s the most numerous population of carnivores in the world.

So there’s a billion dogs on the planet, and three quarters of them are village dogs. (repetetive piano music) Today we’re at Cornell University in Ithaca, New York, to meet Adam Boyko, an assistant professor at the faculty of veterinary medicine.

voiceover he’s recently published a very cool paper about dog domestication. So, did we domesticate dogs, or did they domesticate us? Yeah, that’s a really good question, and I’m sure that he’s got a lot to say about that. Hi Adam!.

hi irene, how’s it going? Good, how are you? Hey Jaques, thanks for coming. Great to see you. So, who do you have here? I have Sam, he’s a gorgeous yellow labrador retriever.

He’s our latest volunteer in the genetic diversity study. I hear we’re going to take some genetic samples from him. That’s right, we’re gonna put him in the biobank and we’re gonna look at his DNA. What are you expecting to see? Well, for Sam, I know that he has short fur,.

I know that he’s got yellow fur, so i know he’s homozygous for FGF5 and TYRP1. TYRP1 is the blocus in dogs, and it’s the same locus in humans that causes blond hair. Oh, that’s really cool. He’s also a little on the small side for a labrador,.

So i’m expecting he has at least one copy of the small IGF1 allele. (laughs) Labs get hip dysplasia like other big dogs. That’s right, having samples from healthy dogs like Sam, to compare with the dogs that we see in the is really important for finding the genetic predispositions.

For diseases like that. What’s the sampling process? Well, we use these saliva swabs. Sam, ready? Ready for your sample? Here we go.

Heredity Crash Course Biology 9

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