Abstract

Genes can evolve via duplication and divergence mechanisms, but also de novo out of non-coding intergenic sequences. This latter mechanism has only recently become fully appreciated, while the former mechanism was an almost exclusive dogma for quite some time. This essay explores the history of this development: why a view developed, with the alternative hardly being explored. Because of the prevailing view, an important aspect of the nature of genes and their evolutionary origin escaped our attention. Evidence is now rapidly accumulating that de novo evolution is a very active mechanism for generating novelty in the genome, and this will require a new look at how genes arise and become functional.

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Additional Information

ISSN
1529-8795
Print ISSN
0031-5982
Pages
pp. 149-161
Launched on MUSE
2014-10-21
Open Access
No
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