Mos1 transposon insertion in LG X. Presence of Mos1 can be detected using oligos oJL115 (Mos1 5'gctcaattcgcgccaaactatg3') and oVR266 (Chr X 5'gacaaagacgtgtagttgcg3'). Reference: Giordano-Santini R, et al., (2010) Nature Methods. Aug 22.