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DEVELOPMENTAL CORRELATES OF GENOME SIZE IN PLETHODONTID SALAMANDERS AND THEIR IMPLICATIONS FOR GENOME EVOLUTION
Open accessAbstract
We present an analysis of the evolutionary relationship between genome size (C-value, mass of DNA per haploid nucleus) and developmental rate using observations of limb regeneration in salamanders of the family Plethodontidae. Rates of growth and differentiation of regenerating limbs are reported for 27 plethodontid species whose C-values range from 14 to 76 picograms. A phylogenetic analysis employing Felsenstein's method of independent contrasts indicates that rate of differentiation is inversely proportional to genome size, although we have not identified any statistically significant association between genome size and the growth rate of regenerating tissue. Our results are consistent with an interpretation that genome size may place a limit on the maximum rate of regeneration attainable in plethodontid salamanders. The implications of our findings for the "junk DNA," "nucleotypic DNA," "selfish DNA," and "skeletal DNA" hypotheses of genome evolution are discussed.
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Citations
Cites
Phylogenies and the Comparative Method
Felsenstein, J. (1985) · The American Naturalist · doi:10.1086/284325 · Cited by 9,793
Cited by
TESTING FOR PHYLOGENETIC SIGNAL IN COMPARATIVE DATA: BEHAVIORAL TRAITS ARE MORE LABILE
Blomberg, S. P., Garland, T., & Ives, A. R. (2003) · Evolution · doi:10.1111/j.0014-3820.2003.tb00285.x · Cited by 4,678
Grafen, A. (1989) · Philosophical Transactions of the Royal Society of London. B, Biological Sciences · doi:10.1098/rstb.1989.0106 · Cited by 2,142
Coincidence, coevolution, or causation? DNA content, cellsize, and the C‐value enigma
GREGORY, T. R. (2001) · Biological Reviews · doi:10.1111/j.1469-185x.2000.tb00059.x · Cited by 730
Maddison, W. P. (1990) · Evolution · doi:10.1111/j.1558-5646.1990.tb05937.x · Cited by 533
Comparative methods for explaining adaptations
Harvey, P. H., & Purvis, A. (1991) · Nature · doi:10.1038/351619a0 · Cited by 383
Metadata
- Authors
- Sessions, S. K., & Larson, A.
- Venue
- Evolution
- Publisher
- Oxford University Press (OUP)
- Published
- 1987-11
- Volume
- 41
- Issue
- 6
- Pages
- 1239-1251
- ISSN
- 0014-3820 (ISSN-L)
- 1558-5646
- OpenAlex
- W2317791808
- Cited by
- 235
- References
- 1
- FWCI
- 13.28
- Type
- journal article
- Language
- en
- Open access
- bronze
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- Sessions, S. K., & Larson, A. (1987). DEVELOPMENTAL CORRELATES OF GENOME SIZE IN PLETHODONTID SALAMANDERS AND THEIR IMPLICATIONS FOR GENOME EVOLUTION. Evolution. https://doi.org/10.1111/j.1558-5646.1987.tb02463.x
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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