Low variation in ribosomal DNA and internal transcribed spacers of the symbiotic fungi of leaf-cutting ants (Attini: Formicidae). A.C.O. Silva-Pinhati, M. Bacci Jr., G. Hinkle, M.L. Sogin, F.C. Pagnocca, V.G. Martins, O.C. Bueno and M.J.A. Hebling. Brazilian Journal of Medical and Biological Research, 37 (10): 1463, 2004.

Figure 3. Phylogenetic relationship between the 15 ITS2 haplotypes of six symbiotic fungal isolates. Network nodes (circles) indicate haplotypes, which are numbered in bold and proportionally sized to the number of sequences they represent, i.e., 1, 2, 3, 5, 10, and 14 sequences. The areas of the colored parts of the circles are proportional to the number of sequence copies from each of the fungal isolates A to F (see also Table 2). Note that haplotypes from fungal isolates A, C and F are, in general, more closely related to each other than to haplotypes from isolates B, D and E.