Scientists have cloned a dead species of frog

Reactivate the genome of the extinct frog species was able to Australian scientists. Lazarus Project – The researchers of this project, thanks to cell nuclei, obtained tissue samples that were collected in the 1970s. In freezers, samples were stored in donor eggs of a different species for more than forty years. In the course of the study, cells with the DNA of the extinct frog suddenly began to divide and develop, as a result of which they reached the three-day stage of embryo development, which in scientific circles is called blastula. Reobatrachus (Rheobatrachus silus), one of two species of tailless amphibian caring frogs (Platypus), common in Australia in the mid-1980s. These species can be recognized by the unique way of reproduction of offspring. Fertilized eggs male female swallowed and until hatching carried in the stomach. This process lasts six weeks. During this time, the female does not eat anything. Birth occurs when the female spits out the offspring, then it continues to develop on its own in shallow water.

Reproduction of the extinct frog was made by the method of transferring the nucleus of the somatic cell. Dolly the sheep was cloned in this way, but this is the first time the technology has been used to reproduce a dead animal. The researchers did not like the efforts, because the embryos did not live longer than a few days, but the work continues and inspires researchers to reproduce other populations of extinct animals.

Science has taken a step forward in resurrecting dead cells and becoming alive. The potential should be developed, such technology will help to save hundreds of species of amphibians. Now we should expect that scientists will want to clone a dinosaur and the Jurassic Park will be a new specimen. Technology does not stand still, which even the brain cells themselves do not know tomorrow.

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