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Sex differences in fitness and selection for centric fusions between sex-chromosomes and autosomes
Open accessAbstract
SUMMARY: A model of centric fusions between the X or Y chromosome and an autosome carrying a selected locus is studied. It is assumed that fusions are not associated with any fitness effects, and that all chromosomes disjoin regularly from their homologues. It is shown that a necessary condition for the fusion to be favoured is that there is a selectively maintained sex difference in allele frequencies at the selected locus. If this condition is satisfied, the initial rate of increase of a rare Y-autosome fusion is about three times that of an X-autosome fusion, with the same parameter values. Computer calculations of the final equilibrium states reached by populations containing such fusions were done.
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Citations
Cited by
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Rieseberg, L. H. (2001) · Trends in Ecology & Evolution · doi:10.1016/s0169-5347(01)02187-5 · Cited by 1,457
The Relative Rates of Evolution of Sex Chromosomes and Autosomes
Charlesworth, B., Coyne, J. A., & Barton, N. H. (1987) · The American Naturalist · doi:10.1086/284701 · Cited by 1,068
Self-citationGenomics and the origin of species
Seehausen, O., Butlin, R. K., Keller, I., Wagner, C. E., Boughman, J. W., Hohenlohe, P. A., Peichel, C. L., Saetre, G.-P., Bank, C., Brännström, Å., et al. (2014) · Nature Reviews Genetics · doi:10.1038/nrg3644 · Cited by 1,016
Complex evolutionary trajectories of sex chromosomes across bird taxa
Zhou, Q., Zhang, J., Bachtrog, D., An, N., Huang, Q., Jarvis, E. D., Gilbert, M. T. P., & Zhang, G. (2014) · Science · doi:10.1126/science.1246338 · Cited by 324
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Metadata
- Authors
- Charlesworth, D., & Charlesworth, B.
- Venue
- Genetical Research
- Publisher
- Hindawi Limited
- Published
- 1980-04
- Volume
- 35
- Issue
- 2
- Pages
- 205-214
- ISSN
- 0016-6723 (ISSN-L)
- 1469-5073
- OpenAlex
- W2095312765
- Cited by
- 293
- References
- 0
- FWCI
- 1.84
- Type
- journal article
- Language
- en
- Open access
- bronze
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- Charlesworth, D., & Charlesworth, B. (1980). Sex differences in fitness and selection for centric fusions between sex-chromosomes and autosomes. Genetical Research. https://doi.org/10.1017/s0016672300014051
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