Within-individual variation in the mt Southern-RFLP patterns in the family Kov52. DNA was digested with HindIII and hybridized with DIG labeled atp1 probe. X and Y denote two different branches from the same individual identified by the number. Arrowheads point to the bands which intensities were quantified. The values of band intensities related to the strongest band (number 5) and expressed in % are shown at left.