Fig. 2. Segregation of Al tolerance associated RFLP marker UGAc502 in three F₂ populations. A is HindIII-cut DNA; B is the Al sensitive parent M. sativa subsp. coerulea 440501-2, showing the D_S1 and D_S2 alleles; C is the Al tolerant parent M. sativa subsp. coerulea 464724-25, showing the D_T1 and D_T2 alleles; D is F₁ Al-3; E is F₁ Al-4; F is F₁ Al-5. Population One is an F₂ population derived from selfing Al-3, Population Two is from Al-4, and Population Three is from Al-5.