FIG. 5.—

An example of positionally equivalent putative lincRNA loci in both Drosophila melanogaster and Mus. musculus. The arrows within the protein-coding gene models and originating at the lincRNA transcriptional start sites indicate the shared orientation of transcription in both species. The boxed genomic regions indicate the orthologous protein-coding gene neighborhoods for D. melanogaster (fkh) and M. musculus (Foxa1). Note that only multiexonic transcripts are shown for the D. melanogaster gene models. The positionally equivalent lincRNA loci are indicated by the two-headed arrow.