Find has implications for preservation of endangered species, livestock
With pinhead-sized grafts of testicular tissue from newborn mammals, scientists at the University of Pennsylvania have induced mice to produce fully functional sperm from evolutionarily distant species. The result has important implications for preserving the germ lines of critically endangered species as well as prized livestock.
The study, in which male mice produced functional gametes first from other mice and then from pigs and goats, is reported in the Aug. 15 issue of the journal Nature.
"This is the first report of complete spermatogenesis from tissue grafted across species," said Ina Dobrinski, assistant professor of large animal reproduction in Penns School of Veterinary Medicine. "The production of functionally competent sperm from three different mammals indicates that testis tissue grafting may be applicable to a wide variety of species."
Steve Bradt | EurekAlert!
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