Detection of a conserved arrangement of three tRNA genes in the sunflower mitochondrial genome. Identification, mapping and expression of trnC-trnN-trnY genes.
The genes coding for tRNA-Cys (trnC), tRNA-Asn (trnN) and tRNA-Tyr (trnY) have been sequenced in a region of about 3.0 kb of the sunflower mitochondrial DNA. The trnC and trnY are genuine mitochondrial genes, while the trnN gene has a chloroplast origin. Despite their heterologous origin the three genes are transcribed. Their arrangement is the first detected in a highly conserved form in a specific group of advanced dicots.
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Sezione di Trani del Centro di Studio sui Mitocondri e Metabolismo Energetico, C.N.R., Trani, Italia.
Ambrosini
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Fiorella
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Gallerani
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D001483:Base Sequence; D015152:Blotting, Northern; D004272:DNA, Mitochondrial / Q000737:chemistry / Q000235:genetics*; D017343:Genes, Plant; D006368:Helianthus / Q000235:genetics*; D008969:Molecular Sequence Data; D009693:Nucleic Acid Hybridization; D016133:Polymerase Chain Reaction; D012345:RNA, Transfer, Amino Acid-Specific / Q000235:genetics*; D012348:RNA, Transfer, Asn / Q000737:chemistry / Q000235:genetics; D012350:RNA, Transfer, Cys / Q000737:chemistry / Q000235:genetics; D012365:RNA, Transfer, Tyr / Q000737:chemistry / Q000235:genetics; D016415:Sequence Alignment; D012689:Sequence Homology, Nucleic Acid
D004272:DNA, Mitochondrial; D012345:RNA, Transfer, Amino Acid-Specific; D012348:RNA, Transfer, Asn; D012350:RNA, Transfer, Cys; D012365:RNA, Transfer, Tyr