Scientists have developed a groundbreaking technique that could aid in saving endangered species by creating sex-changing clones. Researchers successfully transformed cloned male mouse embryos into females using a method inspired by a Japanese fish capable of switching sex. This was achieved by employing the gene-editing tool CRISPR to remove the Y chromosome, resulting in female embryos with a single X chromosome. The technique, named Y-CUT, was tested on male mouse embryos and then applied to cloned embryos, leading to the birth of healthy, fertile female clones. These clones, sharing the same genome as the male donor, could mate with male clones to produce offspring. This innovation holds potential for rescuing species with limited individuals by creating breeding pairs from a single male. However, the method has limitations, as not all mammals can reproduce with an XO chromosome combination.
QUESTION: How might the ability to create sex-changing clones impact the future of wildlife conservation efforts?
Sex-changing mouse clones may help fight to save endangered species
