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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Bottema, C. D. Webb, G. C. Gooley, A. A. Cooper, S. B. Goodman, M. Hope, R. Dolman, G. Holland, R. A. Wheeler, D. |
| Description | Author Affiliation: Wheeler D ( Laboratory of Molecular Evolution, Department of Molecular Biosciences, Adelaide University, South Australia 5005, Australia.); |
| Abstract | Mammals possess multiple, closely linked beta-globin genes that differ in the timing of their expression during development. These genes have been thought to be derived from a single ancestral gene, by duplication events that occurred after the separation of the mammals and birds. We report the isolation and characterization of an atypical beta-like globin gene (omega-globin) in marsupials that appears to be more closely related to avian beta-globin genes than to other mammalian beta-globin genes, including those previously identified in marsupials. Phylogenetic analyses indicate that omega-globin evolved from an ancient gene duplication event that occurred before the divergence of mammals and birds. Furthermore, we show that omega-globin is unlinked to the previously characterized beta-globin gene cluster of marsupials, making this the first report of an orphaned beta-like globin gene expressed in a vertebrate. |
| ISSN | 00278424 |
| e-ISSN | 10916490 |
| Journal | Proceedings of the National Academy of Sciences of the United States of America |
| Issue Number | 3 |
| Volume Number | 98 |
| Language | English |
| Publisher | National Academy of Sciences |
| Publisher Date | 2001-02-01 |
| Publisher Place | United States |
| Access Restriction | Open |
| Subject Keyword | Evolution, Molecular Globins Genetics Mammals Classification Marsupialia Phylogeny Amino Acid Sequence Animals Cloning, Molecular Gene Duplication Chemistry Molecular Sequence Data Polymerase Chain Reaction Sequence Alignment Research Support, Non-U.S. Gov't Multidisciplinary |
| Content Type | Text |
| Resource Type | Article |
| Subject | Multidisciplinary |
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