Fig. 2. Developmental expression of XLMO-2. RT-PCR analysis on developmentally staged embryos shows that XLMO-2 expression begins after gastrulation and is maintained during embryogenesis. RT-PCR analysis of GATA-1, GATA-2 and XFOG transcripts are included for comparison. Ornithine decarboxylase (ODC) is included as a control of RNA recovery. –RT is a standard reaction that lacks reverse transcriptase and is included as a control for genomic DNA contamination.