The world's first cloned golden wild yak via interspecific SCNT: 4800m donor origin and 4200m vitrified blastocyst transfer
This study reports the first successful birth of a cloned golden wild yak via interspecific somatic cell nuclear transfer, achieved by generating vitrified blastocysts from 4,800m-altitude donor cells in Beijing and transferring them to domestic yak surrogates at 4,200m altitude in Xizang, thereby establishing a viable conservation strategy for this critically endangered high-altitude species.