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The AH36 interval from an rfk-1 mutant does not cause ascus abortion. Images depict asci from crosses between an SkS sad-2Δ strain and an SkS strain, carrying either the AH36 interval from (A) F2-19 (rfk-1+) or (B) ISU-3211 (an rfk-1 mutant). Crosses are as follows: (A) ISU-3037 × ISU-4273 and (B) ISU-3037 × ISU-4275. B, black; W, white.
