Fig. 3

Ppetra transcripts and expression at adult stage. The first lane left is 100-bp ladder (NEB). a In silico identified Ppetra transcript, containing six putative TRA/TRA-2 binding sites, indicated by yellow vertical bars. b Ppetra RT-PCR amplification. Azure boxes represent male-specific untranslated regions. Pink boxes represent female-specific untranslated regions. Blue and red boxes represent male-specific and female-specific coding regions, respectively. The positions of primers utilized are indicated by short red arrows