Fig. 1
From: Slit-Robo expression in the leech nervous system: insights into eyespot evolution
Phylogenetic analysis and temporal expression of Slit/Robo duplicate orthologs. A Phylogenetic tree for Slit class genes. B Phylogenetic tree for Robo receptors. C Semi-quantitative RT-PCR showing transcription of Hau-slit and Hau-robo orthologs. Digital images of ethidium bromide-stained agarose gels. Fragments of Hau-slit, Hau-robo1, and Hau-robo2 were amplified in separate reactions carried out in parallel. Species abbreviations: Aae, Aedes aegypti; Aal, Aedes albopictus; Ala, Alboglossiphonia lata; Cel, Caenorhabditis elegans; Cgi, Crassostrea gigas; Cte, Capitella teleta; Dme, Drosophila melanogaster; Dre, Danio rerio; Hau, Helobdella austinensis; Hsa, Homo sapiens; Lgi, Lottia gigantea; Mmu, Mus musculus; Pdu, Platynereis dumerilii; Sme, Schmidtea mediterranea; Tca, Tribolium castaneum