Transcripts of Three Mitochondrial Genes in the RNA of Sea Urchin Eggs and Embryos

Creators: Cabrera, Carlos V.; Jacobs, Howard T.; Posakony, James W.; Grula, John W.; Roberts, John W.; Britten, Roy J.; Davidson, Eric H.

Abstract

cDNA clones representing mitochondrial 16 S rRNA, and mRNAs for cytochrome oxidase I and an unidentified reading frame were used to measure the prevalence and stability of these transcripts in gastrula stage embryos. The 16 S rRNA is the most prevalent embryo poly(A) RNA, and is synthesized about four times more rapidly than is the mRNA for cytochrome oxidase. The relative prevalence of the two mRNAs is largely determined by their turnover rates.

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© 1983 Academic Press, Inc. Received September 14, 1982; accepted in revised form January 11, 1983. We are pleased to acknowledge the helpful comments of Professor Giuseppe Attardi. This research was supported by NIH Grant HD-05753; NIH International Fellowship TW-02996 (to C.V.C.), SRC/NATO Fellowship (to H.T.J.), and NIH Fellowship GM-06865 (to J.W.G.).

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Transcripts of Three Mitochondrial Genes in the RNA of Sea Urchin Eggs and Embryos

Abstract

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