Results 41 to 50 of about 1,798,625 (305)

Associations between leaf developmental stability, variability, canalization, and phenotypic plasticity in Abutilon theophrasti

open access: yesEcology and Evolution, 2022
Developmental stability, canalization, and phenotypic plasticity are the most common sources of phenotypic variation, yet comparative studies investigating the relationships between these sources, specifically in plants, are lacking.
Shu Wang, Dao‐Wei Zhou
doaj   +1 more source

Fluctuating asymmetry and environmental stress : understanding the role of trait history [PDF]

open access: yes, 2013
While fluctuating asymmetry (FA; small, random deviations from perfect symmetry in bilaterally symmetrical traits) is widely regarded as a proxy for environmental and genetic stress effects, empirical associations between FA and stress are often weak or ...
Alcantara-Exposito, Angelica   +6 more
core   +2 more sources

Pattern formation in reaction diffusion models with spatially inhomogeneous diffusion coefficients [PDF]

open access: yes, 1992
Reaction-diffusion models for biological pattern formation have been studied extensively in a variety of embryonic and ecological contexts. However, despite experimental evidence pointing to the existence of spatial inhomogeneities in various biological ...
Benson, D. L.   +2 more
core   +3 more sources

Phenotypic variation and developmental instability of life-history traits: a theory and a case study on within-population variation of resting eggs formation in Daphnia

open access: yesJournal of Limnology, 2004
It is commonly accepted that within-population phenotypic variation is caused by genotypic and environmental heterogeneity. Non-genotypic variation is thought to result from diversity of environmental conditions alone.
Victor R. ALEKSEEV, Dmitry L. LAJUS
doaj   +1 more source

No evidence for an association between facial fluctuating asymmetry and vocal attractiveness in men or women

open access: yesEvolutionary Human Sciences, 2020
Facial fluctuating asymmetry (FA), presumably a proxy measure of developmental instability, has been proposed to inversely relate to vocal attractiveness, which may convey information on heritable fitness benefits.
Tobias L. Kordsmeyer   +8 more
doaj   +1 more source

Characterization of Turing diffusion-driven instability on evolving domains [PDF]

open access: yes, 2012
In this paper we establish a general theoretical framework for Turing diffusion-driven instability for reaction-diffusion systems on time-dependent evolving domains.
A. Gierer   +43 more
core   +1 more source

Shu complex SWS1-SWSAP1 promotes early steps in mouse meiotic recombination

open access: yesNature Communications, 2018
Homologous recombination ensures genome integrity during meiotic recombination. Here the authors reveal that factors SWS1 and SWSAP1 are critical for meiotic homologues recombination, particularly in promoting assembly of RAD51 and DMC1 on early ...
Carla M. Abreu   +5 more
doaj   +1 more source

Human Bodily Asymmetry Relates to Behavioral Lateralization and May not Reliably Reflect Developmental Instability

open access: yesSymmetry, 2018
(1) Background: The link between behavioral lateralization and bodily asymmetry in humans is studied to investigate the reliability of fluctuating asymmetry as a measure of developmental instability; (2) Methods: Morphological asymmetries of arms and ...
S. Dongen
semanticscholar   +1 more source

The evolutionary potential of developmental instability [PDF]

open access: yesJournal of Evolutionary Biology, 2000
Abstract Whether or not developmental instability (DI) has evolutionary potential is subject to much debate. Generally, studies fail to detect significant heritability for fluctuating asymmetry (FA), a trait assumed to reflect DI. In addition, between-trait correlations in FA are low, suggesting that DI is trait- rather than individual ...
null Van Dongen, null Lens
openaire   +3 more sources

Canalization and developmental instability of the fetal skull in a mouse model of maternal nutritional stress. [PDF]

open access: yesAm J Phys Anthropol, 2014
Nutritional imbalance is one of the main sources of stress in both extant and extinct human populations. Restricted availability of nutrients is thought to disrupt the buffering mechanisms that contribute to developmental stability and canalization ...
Gonzalez PN, Lotto FP, Hallgrímsson B.
europepmc   +2 more sources

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