Figure 2From: Ribosomal intergenic spacer (IGS) length variation across the Drosophilinae (Diptera: Drosophilidae)Intergenic spacer (IGS) size index (i.e., weighted average length) based on Southern Blot hybridization and PCR in females of 29 species. Species group to which they belong is indicated below each species group.Back to article page