amorphic allele - molecular evidence
The ssx coding region has been deleted. An attP site and a single loxP site are present in place of the deleted sequence.
The region X:1371303..1373219 was targeted for removal in a Cas9-mediated event to created a knock-out allele. The ssx gene was replaced with an attP site and a single loxP site.
viable | male
ssxΔ males exhibit no apparent morphological phenotype and are fully viable.