The NADH dehydrogenase subunit 7 gene is interrupted by four group II introns in the wheat mitochondrial genome

Bonen, L. and Williams, K. and Bird, S. and et al, . (1994) The NADH dehydrogenase subunit 7 gene is interrupted by four group II introns in the wheat mitochondrial genome. Molecular and General Genetics MGG, 244 (1). pp. 81-89.

[img] PDF - Published Version
Restricted to ICRISAT researchers only

Abstract

We have characterized a wheat mitochondrial gene, designated nad7, capable of encoding a 394-amino acid subunit of the respiratory chain NADH dehydrogenase complex. It contains four introns possessing group II features and their positions differ from those in both the liverwort mitochondrial nad7 pseudogene and the nuclear gene encoding the homologous 49 kDa subunit of complex I in Neurospora. The derived amino acid sequence of the wheat nad7 gene is strongly conserved relative to its nuclear or organellar counterparts in other organisms. C-to-U type RNA editing, which is observed at 32 positions within the coding region of wheat nad7 transcripts, strengthens protein sequence similarity. RNA editing is also predicted to improve base-pairing within the domain V/VI regions of all four introns.

Item Type: Article
Uncontrolled Keywords: Intron, Mitochondrial gene, NADH dehydrogenase, RNA editing, Wheat
Author Affiliation: Department of Biology, University of Ottawa, 30 Marie Curie St., KIN 6N5, Ottawa, Ontario, Canada
Subjects: Crop Improvement > Genetics/Genomics
Divisions: General
Depositing User: Mr Siva Shankar
Date Deposited: 10 Apr 2013 03:30
Last Modified: 10 Apr 2013 03:30
Official URL: http://dx.doi.org/10.1007/BF00280190
URI: http://eprints.icrisat.ac.in/id/eprint/10233

Actions (login required)

View Item View Item