Scientists resurrect extinct species of unique frogs




Scientists resurrect extinct species of unique frogs

Australian scientists have successfully restored and reactivated the gene missing species of frogs. A group of researchers belonging to the Lazarus Project, used the cell nuclei obtained from tissue samples collected in 1970. Forty years of the samples were stored in donor eggs of another species of frogs, placed in the freezer. In the study, some of the cells containing DNA extinct frog, suddenly began to divide and grow, until they reached the three-day stage of embryo development, which in academic circles is called the blastula.

It is about reobatrahusah (Rheobatrachus silus), one of two species of tailless amphibians caring frogs (Platypus), distributed in Australia until the mid-1980s. Both types feature a unique method of procreation. Female swallowed fertilized male eggs and hatched them in the stomach until the young hatch. development of tadpoles in the womb takes at least six weeks. During this time, the female does not eat anything – “holding fast.” Then she spits seed that continues to grow and develop themselves in the shallows.

Playing extinct frogs were produced by somatic cell nuclear transfer (Somatic-cell Nuclear Transfer, SCNT). This technology was used in the cloning of Dolly the sheep, and later when receiving 581 clones from the donor mice .

frozen frog

“For the first time this technology has been applied to an extinct animal species”

– Told the Australian newspaper Sydney Morning Herald biologist Michael Mahoney.

Despite the fact that none of the embryos did not live longer than a few days, work has inspired researchers to reproduce the other populations of extinct animals.

“We have witnessed the resurrection of the dead. We managed to turn dead cells into live and recover in the genome of an extinct species of frogs. Now we have a fresh cryopreserved cells extinct frogs, which in the future can be used for cloning experiments, ”

– The head of Team Lazarus Project Professor Mike Archer of the University of New South Wales in Sydney.

Frog donor

“We are confident that lie ahead but technological difficulties that we shall overcome. The important thing is that we have demonstrated the potential of a technology that can help to keep hundreds of amphibian animals in a catastrophic situation. ”

About Lazarus Professor Archer spoke publicly for the first time. Speaking at a conference TEDx DeExtinction in Washington (DC, USA), a specialist in the field of paleontology also shared his future plans to clone the extinct marsupial wolf family (Thylacinus cynocephalus).

Do not worry, soon we are going to eat the meat of dinosaurs and transgenic salmon , washed down with all the fresh milk of genetically modified . Bon Appetit!
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Tags: Cloning , Frogs , Mike Archer , University of New South Wales

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