Display options
Cite
Cheetham AH, Jackson JBC, Hayek LC. QUANTITATIVE GENETICS OF BRYOZOAN PHENOTYPIC EVOLUTION. III. PHENOTYPIC PLASTICITY AND THE MAINTENANCE OF GENETIC VARIATION. Evolution. 1995;49(2):290-296doi: 10.1111/j.1558-5646.1995.tb02241.x.
Cheetham, A. H., Jackson, J. B. C., & Hayek, L. C. (1995). QUANTITATIVE GENETICS OF BRYOZOAN PHENOTYPIC EVOLUTION. III. PHENOTYPIC PLASTICITY AND THE MAINTENANCE OF GENETIC VARIATION. Evolution; international journal of organic evolution, 49(2), 290-296. https://doi.org/10.1111/j.1558-5646.1995.tb02241.x
Cheetham, Alan H, et al. "QUANTITATIVE GENETICS OF BRYOZOAN PHENOTYPIC EVOLUTION. III. PHENOTYPIC PLASTICITY AND THE MAINTENANCE OF GENETIC VARIATION." Evolution; international journal of organic evolution vol. 49,2 (1995): 290-296. doi: https://doi.org/10.1111/j.1558-5646.1995.tb02241.x
Cheetham AH, Jackson JBC, Hayek LC. QUANTITATIVE GENETICS OF BRYOZOAN PHENOTYPIC EVOLUTION. III. PHENOTYPIC PLASTICITY AND THE MAINTENANCE OF GENETIC VARIATION. Evolution. 1995 Apr;49(2):290-296. doi: 10.1111/j.1558-5646.1995.tb02241.x. PMID: 28565013.
Copy Download .nbib Format: NLM
Share it on

Evolution. 1995 Apr;49(2):290-296. doi: 10.1111/j.1558-5646.1995.tb02241.x.

QUANTITATIVE GENETICS OF BRYOZOAN PHENOTYPIC EVOLUTION. III. PHENOTYPIC PLASTICITY AND THE MAINTENANCE OF GENETIC VARIATION.

Evolution; international journal of organic evolution

Alan H Cheetham, Jeremy B C Jackson, Lee-Ann C Hayek

Affiliations

  1. Department of Paleobiology, National Museum of Natural History, Smithsonian Institution, Washington, D.C., 20560.
  2. Center for Tropical Paleoecology and Archaeology, Smithsonian Tropical Research Institute, Apartado 2072, Balboa, Republic of Panama.
  3. Statistics and Mathematics, Smithsonian Institution, Washington, D.C., 20560.

PMID: 28565013 DOI: 10.1111/j.1558-5646.1995.tb02241.x

Abstract

Cheilostome bryozoan species show long-term morphologic stasis, implying stabilizing selection sustained for millions of years, but nevertheless retain significant heritable variation in traits of skeletal morphology. The possible role of within-genotype (within-colony) phenotypic variability in preserving genetic diversity was analyzed using breeding data for two species of Stylopoma from sites along 110 km of the Caribbean coast of Panama. Variation among zooids within colonies accounts for nearly two-thirds of the phenotypic variance on average, increases with environmental heterogeneity, and includes significant genotype-environment interaction. Thus, within-colony variability apparently represents phenotypic plasticity, at least some of which is heritable, rather than random "developmental noise." Almost all of the among-colonies component of phenotypic variance is accounted for by additive genetic differences in trait means, suggesting that within-colony plasticity includes virtually all of the environmental component of phenotypic variance in these populations of Stylopoma. Thus, heritable within-colony plasticity could play a significant part in maintaining genetic diversity in cheilostomes, but it is also possible that rates of polygenic mutation alone are sufficient to balance the effects of selection.

© 1995 The Society for the Study of Evolution.

Keywords: Bryozoa; Stylopoma.; genotype-environment interaction; phenotypic variance; skeletal morphology

Publication Types