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(a) mtDNA restriction patterns of S. cerevisiae isolates from two fermentation tanks (see Materials and Methods) using the restriction endonuclease HinfI. Lane M corresponds to lambda DNA digested with PstI, used as a marker. (b) Chromosomal profiles of the S. cerevisiae isolates from fermentation tanks. Lane M corresponds to strain YNN295 (Bio-Rad), used as a marker.
