Genomic location of pre-mir-92a and pre-mir-92b in arthropods. Mir-92a and b are intragenic positioned closely in hemimetabola, hymenoptera and coleopteran genomes and are predicted be expressed as part of the same pri-RNA transcript. However in Diptera, mir92a and b are now separated by considerable distances and may no longer be part of the same polycistronic transcript.
Zondag et al. BMC Evolutionary Biology 2012 12:211 doi:10.1186/1471-2148-12-211