Figure 2

Fig 2: 6% silver-stained polyacrylamide gel showing RFLP profiles produced using AluI to digest the COI fragment amplified from specimens of Biomphalaria glabrata, B. tenagophila and B. straminea obtained from various localities in Brazil. Lanes 1-2: B. glabrata, from Belém, Pará; 3-4: B. glabrata, from Viseu, Pará; 5-6: B. glabrata, from Cururupu, Maranhão; 7-8: B. glabrata, from Touros, Rio Grande do Norte; 9-10: B. glabrata, from Pontezinha, Pernambuco; 11-12: B. glabrata, from Jacobina, Bahia; 13-14: B. glabrata, from Betim, Minas Gerais; 15-16: B. tenagophila, from Formosa, Goiás; 17-18: B. tenagophila, from Vespasiano, Minas Gerais; 19: B. tenagophila, from Vitória, Espirito Santo; 20: B. tenagophila, from Araçatuba, São Paulo; 21: B. tenagophila, from Paracambi, Rio de Janeiro; 22-23: B. tenagophila, from Joinville, Santa Catarina; 24-25: B. tenagophila, from Imbé, Rio Grande do Sul; 26: B. straminea, from Picos, Piauí; 27: B. straminea, from Belém, Pará; 28: B. straminea, from Jacobina, Bahia; 29: B. straminea, from Juiz de Fora, Minas Gerais; 30-31: B. straminea, from Guaíra, Paraná; 32: B. straminea, from Porto Alegre, Rio Grande do Sul; molecular size markers are shown on the left side of the figure.