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Trends Genet. 2006 Nov;22(11):597-602. Epub 2006 Sep 18.

Many gene and domain families have convergent fates following independent whole-genome duplication events in Arabidopsis, Oryza, Saccharomyces and Tetraodon.

Author information

1
Plant Genome Mapping Laboratory and Department of Genetics, University of Georgia, Athens, GA 30602, USA. paterson@uga.edu

Abstract

Genome duplication is potentially a good source of new genes, but such genes take time to evolve. We have found a group of "duplication-resistant" genes, which have undergone convergent restoration to singleton status following several independent genome duplications. Restoration of duplication-resistant genes to singleton status could be important to long-term survival of a polyploid lineage. Angiosperms show more frequent polyploidization and a higher degree of duplicate gene preservation than other paleopolyploids, making them well-suited to further study of duplication-resistant genes.

PMID:
16979781
DOI:
10.1016/j.tig.2006.09.003
[Indexed for MEDLINE]

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