Figure 1From: Ribosomal intergenic spacer (IGS) length variation across the Drosophilinae (Diptera: Drosophilidae)Ribosomal DNA array in Drosophila melanogaster. Diagram shows position of PCR product and primers, Hae III restriction sites at the ends of the intergenic spacer (IGS) region, and hybridization probe used in this study [modified from 9, 14].Back to article page