For geneticist Matt Walker, petting a dog used to mean sneezing fits, itchy eyes and skin rashes. Today, he can feed peanut butter to a beagle resting on his lap, thanks to a gene-editing technology that can make dogs hypoallergenic. Gene-edited, hypoallergenic dogsBig picture view:For the first time, scientists have successfully used CRISPR gene-editing technology to eliminate a primary allergy-causing protein in two dogs, Bailey and her twin Alfie. To create Bailey and Alfie, scientists edited dog skin cells in a laboratory to disable the primary gene responsible for producing those allergenic proteins. SoRelle noted that while the disabled gene is the primary allergen trigger in dogs, it is not the only one.