Intragenic deletion within SxlfPb.
Deletion of sequences from 0 to -6.5 (coordinates according to FBrf0042036). The distal AvaII site of the P-element present in the progenitor is missing, suggesting that the deletion extends into the distal P-element terminal repeat.
Fails to complement Sxl alleles that are defective in somatic function, suggesting that this allele probably eliminates all known somatic functions. Partially complements Sxlf2, an allele defective in germline function; heteroallelic females are semi-fertile and the ovaries do not contain any abnormal oocytes.
Isolated on the basis of its failure to complement Sxlf9.