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 2. Polymorphic sites of the 15 ITS2 haplotypes of six symbiotic fungal isolates. Fungal isolates were collected from nests of Atta laevigata (A), Atta sexdens rubropilosa (B), Acromyrmex crassispinus (C), Acromyrmex hispidus fallax (D = mycelium, E = basidiocarp), and Atta capiguara (F). The ITS2 region of these isolates contained 212 to 218 bp, of which a 201-bp alignment containing the ITS2 polymorphic sites is represented. Dots indicate conserved sites and letters polymorphic sites, micro-satellite repeats are shaded and transitions are unshaded. Haplotypes are numbered from 1 to 15 and isolates in which a known ITS2 haplotype was found are given within parentheses.