bicicleur 2
Regular Member
- Messages
- 6,367
- Reaction score
- 1,402
- Points
- 113
Przewalski horses were supposed to be the last wild horses. In fact, they are feral :
"They collected and later sequenced DNA from 20 Botai horse remains; they did the same for a similar number of horses living in various regions over the past 5000 years. They then compared these sequences to scores of already existing sequences, including Przewalski’s horses, and built a family tree showing which breeds were most closely related. The tree “was really quite a shock,” Orlando says.
For one, Przewalski’s horses were in the same part of the tree as the Botai horses. From their relationship, it was clear that these “wild” horses were escaped Botai horses, the team reports today in Science. “We have now found that there are no truly wild horses left” anywhere in the world, Outram says.
Another surprise was that all the other horses were on a separate branch of the tree, suggesting they were not Botai descendents as many have long thought."
http://www.sciencemag.org/news/2018/02/ancient-dna-upends-horse-family-tree
"They collected and later sequenced DNA from 20 Botai horse remains; they did the same for a similar number of horses living in various regions over the past 5000 years. They then compared these sequences to scores of already existing sequences, including Przewalski’s horses, and built a family tree showing which breeds were most closely related. The tree “was really quite a shock,” Orlando says.
For one, Przewalski’s horses were in the same part of the tree as the Botai horses. From their relationship, it was clear that these “wild” horses were escaped Botai horses, the team reports today in Science. “We have now found that there are no truly wild horses left” anywhere in the world, Outram says.
Another surprise was that all the other horses were on a separate branch of the tree, suggesting they were not Botai descendents as many have long thought."
http://www.sciencemag.org/news/2018/02/ancient-dna-upends-horse-family-tree