Because researchers added the cathelicidin to a gene for a reproductive hormone, it also reduced the catfish's ability to reproduce, which they said was important to prevent genetic contamination of the hybrid fish with wild catfish.
The authors noted some uncertainties in using CRISPR technology — primarily used and studied in mammals— on fish. The paper has not yet been peer-reviewed. However, researchers hope that the alligator and catfish gene-editing can be used in tandem with other catfish breeding techniques to help farmers with their catfish yields.
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