Results 251 to 260 of about 785,864 (281)

Developmental Regulation Through Protein Stability

2002
The idea that differential gene expression is critical to the establishment of different cell identities is well-worn into the psyches of all scientists who think about the cellular dynamics of development. Equally commonplace is the idea that temporally and spatially dynamic gene expression is quite often regulated at the level of transcription ...
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Developmental stability and fitness

1997
Abstract Developmental instability per se and its causes are often assumed to result in reduced performance in domains of fitness other than sexual competition (sexual selection was discussed in Chapter 8). The consequences of such reductions in fitness have often been presumed rather than estimated.
Anders Pape Møller, John P Swaddle
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Developmental stability and signalling

1997
Abstract Signals are either morphological structures or have a morphological basis. There are frequently considerable intra- and interspecific differences in signal design, particularly for those involved in sexual selection, but also for signals used in other contexts.
Anders Pape Møller, John P Swaddle
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Asymmetries and developmental stability

1997
Abstract In this chapter we introduce the concepts of homeostasis, canalisation, and developmental stability and how this relates to developmental stress (sections 1.2-3). We then review the ways in which developmental stability has been assessed and measured.
Anders Pape Møller, John P Swaddle
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Developmental stability and its applications in ecotoxicology

Ecotoxicology, 1993
: Developmental stability refers to the ability of a developing organism to produce a consistent phenotype in a given environment. It provides a simple, reliable method of detecting stressed populations and monitoring their recovery. The most common measure of developmental instability, fluctuating asymmetry, assesses minor deviations from perfect ...
J H, Graham, J M, Emlen, D C, Freeman
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Developmental Stability and Fitness: A Review

The American Naturalist, 1997
Developmental stability reflects the ability of individuals to undergo stable development of their phenotype under a range of environmental conditions. Developmental instability is measured in terms of fluctuating asymmetry or phenodeviance. A negative relationship between developmental instability and fitness has figured as a prominent untested ...
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Postural stability, tardive dyskinesia and developmental disability

Journal of Intellectual Disability Research, 1992
ABSTRACT. The postural stability of four adult populations was examined through force platform methods. The four groups were classified as: (1) developmentally disabled (severely and profoundly mentally retarded) with tardive dyskinesia; (2) developmentally disabled but with no history of neuroleptic medication; (3) tardive dyskinetic but of normal ...
Y G, Ko, R E, Van Emmerik, R L, Sprague, K M, Newell   +3 more
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Evolutionary stability of developmental commitment

BioSystems
Evolution of unicellular to multicellular organisms must resolve conflicts in reproductive interests between individual cells and the group. The social amoeba Dictyostelium discoideum is a soil-living eukaryote with facultative sociality. While cells grow in the presence of nutrients, cells aggregate under starvation to form fruiting bodies containing ...
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Parental age and developmental stability in Drosophila melanogaster

Genetica, 1993
Two strains of Drosophila melanogaster, one outbred, recently derived from nature, and the other created by intensive directional selection on phototactic behavior for 19 years, were used to test the hypothesis that developmental stability is influenced by parental age. Three characters were examined: sternopleural bristle number, wing length, and wing
Jennie Wakefield, Kristie Harris, Therese Ann Markow   +2 more
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Asymmetry, Developmental Stability, and Evolution

1997
Abstract Why does nature love symmetry? In this up-to-date review of symmetry and its evolutionary implications, Anders M/oller and John Swaddle argue that symmetry is related to genetic stability and fitness and that symmetric individuals appear to have quantifiable and significant advantages over their asymmetric counterparts.
Moller, AP, Swaddle, JP
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