Developmental selection against developmental instability: a direct demonstration
نویسندگان
چکیده
منابع مشابه
Developmental selection against developmental instability: a direct demonstration.
Developmental selection, the non-random elimination of offspring during development, is hypothesized to alter the opportunity for selection on a given trait at later stages of the life cycle. Here, we provide a direct demonstration of developmental selection against developmental instability, assessed as the incidence of minor, discrete phenotypic abnormalities in the male sex comb, a condition...
متن کاملA primary role of developmental instability in sexual selection.
In evolutionary biology, fluctuating asymmetry (FA) is thought to reveal developmental instability (DI, inability to buffer development against perturbations), but its adaptive and genetic bases are being debated. In other fields, such as human clinical genetics, DI is being assessed as incidence of minor morphological abnormalities (MMAs) and used to predict certain fitness outcomes. Here, for...
متن کاملArtificial selection reveals heritable variation for developmental instability.
Fluctuating (nondirectional) asymmetry (FA) of bilaterally paired structures on a symmetrical organism is commonly used to assay the developmental instability (DI) caused by environmental or genetic factors. Although evidence for natural selection to reduce FA has been reported, evidence that FA (and by extension DI) is heritable is weak. We report the use of artificial selection to demonstrate...
متن کاملEvolutionary Ecology and Developmental Instability
The past decade has seen a resurgence of interest in developmental instability, reflected in fluctuating asymmetry, as a concept in evolutionary ecology. Many investigations interpret fluctuating asymmetry in populations or subsets of populations as reflecting the existence of, or at least the potential for, natural or sexual selection. However, the biological and nonbiological factors under l...
متن کاملA comparison between developmental and direct encodings
In this paper we compare the evolutionary and run time behaviours of two forms of indirect encoding and a direct encoding. The indirect encodings are comparable to approaches used in the emerging field of developmental systems. We evolve a developmental encoding based on a cellular automaton to grow bit patterns of predefined complexities (in the Kolmogorov sense), and compare its behaviour to ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Biology Letters
سال: 2013
ISSN: 1744-9561,1744-957X
DOI: 10.1098/rsbl.2012.1081