Fig. 2. STS analysis of the marker verification lines derived from five crosses. A) Cross 1 (F3494 x Balkan): lines F6573, F6574 and F6575; Cross 2 (F3494 x Tamaris): lines F6576, F6577. B) Cross 3 (F3505 x Po609.35): lines 6571 and from 6578 to 6585. C) Cross 4 (Rebelle x Jaidor): lines F3485 and 3486; Cross 5 (Rebelle x F1341): lines F3510.A, F3510.B and F3510.C. R: resistant genotype; S: susceptible genotype. Genomic DNA was amplified with the STS primers MWG2018 and size-fractionated on ethidium bromide stained 5% acrylamide gels. Size markers (50-bp DNA ladder, Gibco BRL) are shown at the left in the figures.