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The DOI matches its Crossref record; 126 of the 126 references it cites were found in a registry or an index.

Distinguishing Among Evolutionary Models for the Maintenance of Gene Duplicates

Hahn, M. W.·2009·Journal of Heredity

Abstract

Determining the evolutionary forces responsible for the maintenance of gene duplicates is key to understanding the processes leading to evolutionary adaptation and novelty. In his highly prescient book, Susumu Ohno recognized that duplicate genes are fixed and maintained within a population with 3 distinct outcomes: neofunctionalization, subfunctionalization, and conservation of function. Subsequent researchers have proposed a multitude of population genetic models that lead to these outcomes, each differing largely in the role played by adaptive natural selection. In this paper, I present a nonmathematical review of these models, their predictions, and the evidence collected in support of each of them. Though the various outcomes of gene duplication are often strictly associated with the presence or absence of adaptive natural selection, I argue that determining the outcome of duplication is orthogonal to determining whether natural selection has acted. Despite an ever-growing field of research into the fate of gene duplicates, there is not yet clear evidence for the preponderance of one outcome over the others, much less evidence for the importance of adaptive or nonadaptive forces in maintaining these duplicates.

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Metadata

Authors
Hahn, M. W.
Venue
Journal of Heredity
Published
2009-07-13
Volume
100
Issue
5
Pages
605-617
ISSN
  • 0022-1503 (ISSN-L)
  • 1465-7333
OpenAlex
W2124397449
Cited by
414
References
126
FWCI
15.51
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Distinguishing Among Evolutionary Models for the Maintenance of Gene Duplicates. https://app.cochat.ai/papers/10.1093/jhered/esp047
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Hahn, M. W. (2009). Distinguishing Among Evolutionary Models for the Maintenance of Gene Duplicates. Journal of Heredity. https://doi.org/10.1093/jhered/esp047

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.