Comai, L. and Madlung, A. and Josefsson, C. and Tyagi, Anand P. (2003) Do the different parental “heteroms” cause genomic shock in newly formed allopolyploids? Philosophical Transactions of the Royal Society B, 358 . pp. 1149-1155. ISSN 0962-8436
Full text not available from this repository.Abstract
Allopolyploidy, the joining of two parental genomes in a polyploid organism with diploid meiosis, is an important mechanism of reticulate evolution. While many successful long–established allopolyploids are known, those formed recently undergo an instability phase whose basis is now being characterized. We describe observations made with the Arabidopsis system that include phenotypic instability, gene silencing and activation, and methylation changes. We present a model based on the epigenetic destabilization of genomic repeats, which in the parents are heterochromatinized and suppressed. We hypothesize that loss of epigenetic suppression of these sequences, here defined as the heterome, results in genomic instability including silencing of single–copy genes.
| Item Type: | Journal Article |
|---|---|
| Subjects: | Q Science > QH Natural history > QH301 Biology |
| Divisions: | Faculty of Science, Technology and Environment (FSTE) > School of Biological and Chemical Sciences |
| Depositing User: | Ms Mereoni Camailakeba |
| Date Deposited: | 23 Apr 2003 07:43 |
| Last Modified: | 09 Jul 2012 07:58 |
| URI: | https://repository.usp.ac.fj/id/eprint/2771 |
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