The world's first body cell cloning Arctic wolf has been 100 days

On September 19, the world's first body cell cloned Arctic wolf ushered in its own "100 -day banquet". After a hundred days of careful care by the conservation personnel, it has obvious body characteristics and good health.

On June 10 this year, the world's first body cell cloned Arctic wolf fell to the ground in Beijing. The donor cells of the cloned Arctic wolf are from a wild -skinned sample of a wild North Wolf introduced by Harbin Polar Park. Ostopedly mother cells are from a estrus mother dog. Scientific researchers use ovular mother cells and nuclear treatment, and then inject the supply cells to the ovary clearance of the nuclear egg mother cells. The nucleus of the body and the oocytes of the nucleus will be rebuilt into a new embryo. The surrogate mother is another Big dog.

"Animal cloning is a technique that is asexual reproduction through the nuclear transplantation process. It is to transplant a cell that is transplanted by a clone object to meet the oval mother cells. Under appropriate conditions, it can be re -developed into a normal cloning embryo. "Lai Liangri, a researcher at the Guangzhou Institute of Biomedicine and Health of the Chinese Academy of Sciences, told the Science and Technology Daily reporter.

Can the offspring through the cloned wildlife be breed for offspring? "Cynomar technology is different from the breeding method of natural reproduction, especially for animals with fewer populations and more difficult reproductive cell extraction. Clear technology is an effective way to protect gene diversity and increase the number of populations." Individuals still have reproduction capabilities. The individual life status generated by cloning is no different from ordinary individuals. It can form a matching of reproductive activity. As long as the fertilized eggs develop well, cloned animals can have offspring.

Lai Liang also said that the cellular species of endangered species disappeared somewhere or all of the cells preserved with technology and other technologies for cloning to generate new life forms, which is an important way to bring back and save them. "For example, Spanish scientists successfully cloned in 2003 to the extinction of the extinct Bakkado goats; in 2020, scientists cloned a black -footed, which is an endangered species living in North America." Lai Liang's example.

(Originally on "Science and Technology Daily" 2022-09-20 02)

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