Deletion of >28 kb; deletion from SxlfPb.
Deletion of DNA extending at least 13kb distal to coordinate 0 (coordinates according to FBrf0042036). The proximal breakpoint of the deletion is between -1.0 and +3.0. Approximately 0.1kb of the P-element present in the progenitor remains.
Fails to complement Sxl alleles that are defective in somatic function, suggesting that this allele probably eliminates all known somatic functions.
Isolated on the basis of its failure to complement Sxlf9.