Researchers hope producing embryos from adult cells in the lab could offer a way to save the northern white rhino, with only two females remaining
The team then tested different mixtures of growth factors and chemicals to make such stem cells from southern white rhinos turn into the precursors of sperm and egg cells, called primordial germ cell-like cells. Once they found the precise cocktail that successfully did this in southern white rhinos, they applied it to the northern white rhino stem cells and found it worked for them too.at the Scripps Research Institute in California.
Even then, it is unclear whether southern white rhino surrogates would successfully carry the embryos to produce northern white rhino offspring, says Loring. “There is the additional challenge of acquiring the genetic diversity that is necessary to sustain a population. Inbreeding invariably has bad consequences,” she adds.
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