Break lies in the iab-4 transcription unit.
Lesion mapped to: 76-83 kb.
Gonadal precursors do not coalesce into a gonad. Pole cells are released from the stalled gonadal precursors and are scattered throughout the embryo.
Defective in gonad assembly.
von der Ahe.
J. Von Der Ahe.
Induced with: abd-Aiab4-166.
Mutations in iab-4 have effects on the abd-A transcription unit, so such mutations are considered to be simultaneously mutant for iab-4 and abd-A.