Incipient mitochondrial evolution in yeasts. II. The complete sequence of the gene coding for cytochrome b in Saccharomyces douglasii reveals the presence of both new and conserved introns and discloses major differences in the fixation of mutations in evolution.

Abstract excerpt

We have determined the complete sequence of the mitochondrial gene coding for cytochrome b in Saccharomyces douglasii. The gene is 6310 base-pairs long and is interrupted by four introns. The first one (1311 base-pairs) belongs to the group ID of secondary structure, contains a fragment open reading frame with a characteristic GIY ... YIG motif, is absent from Saccharomyces cerevisiae and is inserted in the same...

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