![]() ![]() So our colleagues have to learn how to produce cells that would have only one set of chromosomes.”Īs you have already said, you do have one donor of natural egg cells, one of the two surviving female rhinos called Fatu. Scientists attempting to bring back the near-extinct northern white rhinoceros announced Thursday they would stop harvesting eggs from one of two remaining live specimens involved in an. What might be interesting to your listeners is that primordial germ cells still contain two sets of chromosomes. “Now we have to learn how to turn these primordial germ cells into eggs and sperm. What other steps are needed to complete the process of creating artificial eggs and sperm? However, due to habitat loss and poaching, the NWR has been pushed to the brink of extinction. The northern white rhino is a subspecies of white rhinoceros, which used to roam across parts of Africa. The only two females remaining, Najin and Fatu, are unable to breed due to age and health issues. So it is one more step, and a very important one, on the way to acquire eggs in a laboratory.” The last known male NWR, Sudan, died in 2018. They succeeded in creating primordial germ cells from these induced pluripotent stem cells. “Now, our colleagues in Osaka have made another breakthrough. This was done in the Max Delbruck Centre in Berlin. The first step was to derive so-called induced pluripotent stem cells from a tissue sample. Their strategy centers on creating new egg and sperm cells from frozen. “We started work on producing eggs in a laboratory environment years ago. Key Takeaways Scientists at the San Diego Zoo are working to bring the northern white rhinoceros back from extinction. ![]() Sebastian Diecke and Vera Zywitza from Max Delbrück Center | Photo: Jan Zwilling, BioRescue/Zoo Dvůr Králové ![]()
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