Takemura, M. and Nozato, N. and Oda, K. and et al, . (1995) Active transcription of the pseudogene for subunit 7 of the NADH dehydrogenase in Marchantia polymorpha mitochondria. Molecular and General Genetics MGG, 247 (5). pp. 565-570.
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Abstract
A pseudogene, ψnad7, which has significant sequence similarity (66.7% amino acid identity) with the bovine nuclear gene for a 49 kDa subunit of the NADH dehydrogenase (NADH:ubiquinone oxidoreductase, EC 1.6.99.3), has been identified on the mitochondrial genome of the liverwort Marchantia polymorpha. The predicted coding region, which includes six termination codons, is actively transcribed into RNA molecules of 16 and 9.6 kb in length, but RNA splicing products were not detected in the liverwort mitochondria. Genomic DNA blot analysis and RNA blot analysis using poly(A)+ RNA suggest that a structurally related nuclear gene encodes the mitochondrial ND7 polypeptide. These results imply that this ψnad7 is a relic of a gene transfer event from the mitochondrial genome into the nuclear genome during mitochondrial evolution in M. polymorpha.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | Group II intron, RNA splicing, Liverwort, Gene transfer, NADH:ubiquinone oxidoreductase |
| Author Affiliation: | Department of Agricultural Chemistry, Faculty of Agriculture, Kyoto University, 606-01, Kyoto, Japan |
| Subjects: | Crop Improvement > Genetics/Genomics |
| Divisions: | General |
| Depositing User: | Mr Siva Shankar |
| Date Deposited: | 10 Apr 2013 03:38 |
| Last Modified: | 10 Apr 2013 03:38 |
| Official URL: | http://dx.doi.org/10.1007/BF00290347 |
| URI: | http://eprints.icrisat.ac.in/id/eprint/10234 |
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