“What we are trying to do is to isolate the genes that distinguish the dodo,” she said. But she warned that the revived dodo could never be an exact replacement for what has been made extinct. She said there were hundreds of dodos in collections around the world, meaning it had been possible to sequence the dead bird’s genome. The researchers will be able to work with pigeon eggs, and use genetic material from pigeons that can be modified to reflect key traits of the dodo, including its flightlessness.īut this will also be technically challenging, as no one has yet managed to use gene-editing for birds in this way.īeth Shapiro, lead palaeogeneticist at Colossal, told the Guardian she had been fascinated by the dodo for more than two decades, since pursuing a degree in Oxford in 1999 where she saw a preserved dodo as a museum exhibit, and tried to persuade the museum to let her extract its DNA. Performing the same technique on an egg-laying bird should be less stressful for the donor species. It could take many pregnancies in practice to create viable offspring from such a method. With the mammalian species the technique requires implanting gene-editing material into the reproductive system of an existing relative of the species, such as an elephant in the case of the mammoth. This could bypass at least some of the ethical dilemmas for scientists. But the dodo would be its first bird, which is significant as it means changing the gene editing technique to accommodate an external egg. However, there is a fierce debate among biologists over whether this sort of research should be pursued.Ĭolossal Biosciences, the gene editing company involved, has already embarked on projects to revive the woolly mammoth and the thylacine. The scientists in question said their work, beyond providing an insight into the extinct dodo’s existence, could help inform the conservation of rare species that are not yet extinct. Dodos are most closely related to pigeons, according to sequencing of the proverbially dead bird’s genome.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |