Hostname: page-component-586b7cd67f-rcrh6 Total loading time: 0 Render date: 2024-11-25T14:04:20.006Z Has data issue: false hasContentIssue false

Inferring relative levels of genetic variability in fossils: the link between heterozygosity and fluctuating asymmetry

Published online by Cambridge University Press:  08 April 2016

A. Richard Palmer*
Affiliation:
Department of Zoology, University of Alberta, Edmonton, Alberta T6G 2E9 and Bamfield Marine Station, Bamfield, British Columbia V0R 1B0, CANADA

Extract

The lack of tools for teasing genetic information out of the fossil record has been a source of frustration to both neontologists and paleontologists, both of whom would like to know more about what was happening genetically in association with such evolutionarily significant events as cladogenesis and extinction. The dearth of such information has been a factor contributing to the current schism between population geneticists and paleontologists over interpretations of historical patterns of evolution (Gould and Eldredge 1977; Stanley 1979; Charlesworth et al. 1982; Levinton 1983; Turner 1983), a schism which seems unbridgeable without at least some insight into paleontological patterns of genetic variation. Several recent papers, however, have documented a negative correlation between the level of fluctuating asymmetry (small, random, right-left differences between otherwise bilaterally symmetrical characters) and the level of heterozygosity in a variety of organisms. Whatever its underlying cause may be, this correlation raises a flicker of hope that a tool may exist for inferring whether some populations of fossil taxa were more variable genetically than others.

Type
Current Happenings
Copyright
Copyright © The Paleontological Society 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Literature Cited

Angus, R. A. 1982. Quantifying fluctuating asymmetry—not all methods are equivalent. Growth. 46:337342.Google Scholar
Angus, R. A. and Schultz, R. J. 1983. Meristic variation in homozygous and heterozygous fish. Copeia. 1983:287299.CrossRefGoogle Scholar
Beardmore, J. A. 1960. Developmental stability in constant and fluctuating environments. Heredity. 14:411422.Google Scholar
Biémont, C. 1983. Homeostasis, enzymatic heterozygosity and inbreeding depression in natural populations of Drosophila melanogaster. Genetica. 61:179189.Google Scholar
Charlesworth, B., Lande, R., and Slatkin, M. 1982. A Neo-Darwinian commentary on macroevolution. Evolution. 36:474498.Google ScholarPubMed
Fursich, F. T. and Palmer, T. 1984. Commisural asymmetry in brachiopods. Lethaia. 17:251265.CrossRefGoogle Scholar
Futuyma, D. J. and Mayer, G. C. 1980. Non-allopatric speciation in animals. Syst. Zool. 29:254271.CrossRefGoogle Scholar
Gould, S. J. and Eldredge, N. 1977. Punctuated equilibria: the tempo and mode of evolution reconsidered. Paleobiology. 3:115151.Google Scholar
Graham, J. H. and Felley, J. D. 1985. Genomic coadaptation and developmental stability within introgressed populations of Enneacanthus gloriosus and E. obesus. Evolution. 39:104114.Google Scholar
Hubbs, C. L. and Hubbs, L. C. 1945. Bilateral asymmetry and bilateral variation in fishes. Pap. Michigan Acad. Sci. Arts Lett. 30:229311.Google Scholar
Kat, P. W. 1982. The relationship between heterozygosity for enzyme loci and developmental homeostasis in peripheral populations of aquatic bivalves (Unionidae). Amer. Nat. 119:824832.Google Scholar
Leary, R. F., Allendorf, F. W., and Knudsen, K. L. 1983. Developmental stability and enzyme heterozygosity in rainbow trout. Nature. 301:7172.Google Scholar
Leary, R. F., Allendorf, F. W., and Knudsen, K. L. 1984. Superior developmental stability of heterozygotes of enzyme loci in salmonid fishes. Amer. Nat. 124:540551.Google Scholar
Leary, R. F., Allendorf, F. W., and Knudsen, K. L. 1985a. Inheritance of meristic variation and the evolution of developmental stability in rainbow trout. Evolution. 39:308314.Google Scholar
Leary, R. F., Allendorf, F. W., and Knudsen, K. L. 1985b. Developmental instability and high meristic counts in interspecific hybrids of salmonid fishes. Evolution 39:13181326.Google Scholar
Lerner, I. M. 1954. Genetic Homeostasis. 134 pp. Wiley and Sons; New York, New York.Google Scholar
Levinton, J. S. 1983. Stasis in progress: the empirical basis of macroevolution. Ann. Rev. Ecol. Syst. 14:103137.Google Scholar
Mason, L. G., Ehrlich, P. R., and Emmel, T. C. 1976. The population biology of the butterfly, Euphydryas editha. V. Character clusters and asymmetry Evolution. 21:8591.Google Scholar
Mather, K. 1953. Genetical control of stability in development. Heredity. 7:297336.Google Scholar
Mitton, J. B. and Grant, M. C. 1984. Associations among protein heterozygosity, growth rate, and developmental homeostasis. Ann. Rev. Ecol. Syst. 15:479499.CrossRefGoogle Scholar
Moodie, G. E. E. 1977. Meristic variation, asymmetry and aspects of the habitat of Culea inconstans (Kirtland), the brook stickleback, in Manitoba. Can. J. Zool. 55:398404.CrossRefGoogle Scholar
Palmer, A. R. and Strobeck, C. 1986. The measurement and interpretation of fluctuating asymmetry. Ann. Rev. Ecol. Syst. 17:in prep.Google Scholar
Reeve, E. C. R. 1960. Some genetic tests on asymmetry of sternopleural chaeta number in Drosophila. Genet. Res., Camb. 1:151172.CrossRefGoogle Scholar
Sciulli, P. W., Doyle, W. J., Kelley, C., Siegel, P., and Siegel, M. J. 1979. The interaction of stressors in the induction of increased levels of fluctuating asymmetry in the laboratory rat. Am. J. Phys. Anthropol. 50:279284.Google Scholar
Siegel, M. I. and Doyle, W. J. 1975. Stress and fluctuating asymmetry in various species of rodents. Growth. 39:363369.Google ScholarPubMed
Smith, B. H., Garn, S. M., and Cole, P. E. 1982. Problems of sampling and inference in the study of fluctuating dental asymmetry. Amer. J. Phys. Anthropol. 58:281289.Google Scholar
Soulé, M. E. 1967. Phenetics of natural populations. II. Asymmetry and evolution in a lizard. Amer. Nat. 101:141160.Google Scholar
Soulé, M. E. 1979. Heterozygosity and developmental stability: another look. Evolution. 33:396401.Google Scholar
Soulé, M. E. 1982. Allomeric variation. 1. The theory and some consequences. Amer. Nat. 120:751764.Google Scholar
Soulé, M. E. and Baker, B. 1968. Phenetics of natural populations. IV. The populations asymmetry parameter in the butterfly Coenonympha tullia. Heredity. 23:611614.Google ScholarPubMed
Soulé, M. E. and Couzin-Roudy, J. 1982. Allomeric variation. 2. Developmental instability of extreme phenotypes. Amer. Nat. 120:751764.Google Scholar
Stanley, S. M. 1979. Macroevolution: Pattern and Process. W. H. Freeman; San Francisco.Google Scholar
Sumner, J. L. and Huestis, R. R. 1921. Bilateral asymmetry and its relation to certain problems in genetics. Genetics. 6:445485.Google Scholar
Tebb, G. and Thoday, J. M. 1958. Stability in development and relational balance of X-chromosomes in D. melanogaster. Nature. 174:11091110.Google Scholar
Thoday, J. M. 1955. Balance, heterozygosity and developmental stability. Cold Spring Harb. Symp. Quant. Biol. 20:318326.Google Scholar
Thoday, J. M. 1958. Homeostasis in a selection experiment. Heredity. 12:401415.Google Scholar
Turner, J. R. G. 1983. Mimetic butterflies and punctuated equilibria: some old light on a new paradigm. Biol. J. Linn. Soc. 20:277300.Google Scholar
Valentine, D. W. and Soulé, M. E. 1973. Effects of p.p′-DDT on developmental stability of pectoral fin rays in the grunion, Leuresthes tenuis. Fish Bull. U.S. 71:921926.Google Scholar
VanValen, L. 1962. A study of fluctuating asymmetry. Evolution. 16:125142.Google Scholar
Vrijenhoek, R. C. and Lerman, S. 1982. Heterozygosity and developmental stability under sexual and asexual breeding systems. Evolution. 36:768776.Google Scholar
Waddington, C. H. 1960. Experiments on canalizing selection. Genet. Res., Camb. 1:140150.Google Scholar
Wright, S. W. 1969. Evolution and the genetics of natural populations. Vol. 2. The theory of gene frequencies. Univ. Chicago Press; Chicago.Google Scholar