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Titolo:
DEFICIENCY OF COX1 GENE-EXPRESSION IN WHEAT PLANTS WITH AEGILOPS COLUMNARIS CYTOPLASM
Autore:
IKEDA TM; TSUNEWAKI K;
Indirizzi:
DALHOUSIE UNIV,DEPT BIOCHEM HALIFAX NS B3H 4H7 CANADA KYOTO UNIV,FAC AGR,GENET LAB KYOTO 60601 JAPAN
Titolo Testata:
Current genetics
fascicolo: 6, volume: 30, anno: 1996,
pagine: 509 - 514
SICI:
0172-8083(1996)30:6<509:DOCGIW>2.0.ZU;2-P
Fonte:
ISI
Lingua:
ENG
Soggetto:
CYTOCHROME-C-OXIDASE; OPEN READING FRAME; SUBUNIT-I; NUCLEOTIDE-SEQUENCE; PERENNIAL TEOSINTES; MITOCHONDRIAL-DNA; ORGANIZATION; MAIZE; TRANSCRIPTION; TRITICUM;
Keywords:
MITOCHONDRIA; COX GENES; TRANSCRIPTION; ALLOPLASMIC WHEAT;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
26
Recensione:
Indirizzi per estratti:
Citazione:
T.M. Ikeda e K. Tsunewaki, "DEFICIENCY OF COX1 GENE-EXPRESSION IN WHEAT PLANTS WITH AEGILOPS COLUMNARIS CYTOPLASM", Current genetics, 30(6), 1996, pp. 509-514

Abstract

Wheat plants with Aegilops columnaris is cytoplasm are characterized by growth inhibition and partial male sterility and show an impaired mitochondrial cytochrome c oxidase activity. We designed this study to clarify the functional relationship between this impaired cytochrome coxidase activity and possible structural alterations to the mitochondrial genes cox1, cox-2 and cox3 that encode three subunits of the cytochrome c oxidase. Using restriction mapping and DNA sequencing, we found major rearrangements in the flanking regions of the cox1 and cox3 genes. In Northern-blot analysis, we detected two different cox3 transcripts and a reduced level of a cox2 transcript, whereas we could not detect a transcript of cox1. These results suggest that rearrangements of the flanking regions of the cox1 gene may result in the severe suppression of its transcription, and subsequently, may lead to the impaired cytochrome c oxidase activity.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 03/12/20 alle ore 16:05:31