variation

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Related to phenotypic variation: Phenotypic variance

var·i·a·tion

(var'ē-ā'shŭn),
1. Deviation from type, especially the parent type, in structure, form, physiology, or behavior.
2. Synonym(s): type (3)
[L. variatio, fr. vario, to change, vary]

variation

/var·i·a·tion/ (var″e-a´shun) the act or process of changing; in genetics, deviation in characters in an individual from the group to which it belongs or deviation in characters of the offspring from those of its parents.
antigenic variation  a mechanism by which parasites can escape the immune surveillance of a host by modifying or completely altering their surface antigens.
microbial variation  the range of characteristics with a species used in identification and differentiation.
phenotypic variation  the total variation, for whatever cause, observed in one character.

variation

(vâr′ē-ā′shən, văr′-)
n.
1.
a. The act, fact, or process of varying.
b. The extent or degree to which something varies: a variation of ten pounds in weight.
2. Biology The existence within a species or other group of organisms of differences in form, function, or behavior, especially when hereditary.

var′i·a′tion·al adj.

var·i·a·tion

(var'ē-ā'shŭn)
Deviation from the type, especially the parent type, in structure, form, physiology, or behavior.
[L. variatio, fr. vario, to change, vary]

variation

  1. ecophenotypic variation (see ECOPHENOTYPE caused by local factors, as opposed to genetic factors, in an organism.
  2. any differences (both genotypic and phenotypic) between individuals in a population or between parents and their offspring. see GENETIC VARIABILITY.

variation (genetic),

n deviation from the genotype in structure, form, physiology, or behavior.

variation

divergence among individual animals of a group. The differences in the morphology or function of an organ or organism, are small enough to stay within the variability of the type organism or organ.
References in periodicals archive ?
pneumoniae to its virulent states are barely understood, although it becomes increasingly clear that noise-driven phenotypic variation plays an important role in pneumococcal pathogenesis.
To overcome this obstacle, plant geneticists and breeders are turning to agricultural and biological engineers for sensor deployment solutions and information technologies that can rapidly quantify the phenotypic variation of genetically diverse plant populations in field conditions.
Inherited epigenetic variants can interact with their genetic counterparts to multiply by orders of magnitude the phenotypic variation available to natural selection, thereby expanding the mechanistic basis of evolutionary theoretical explanations and greatly increasing their plausibility as an account of life's diversity.
For instance, in terms of meat quality and colour, colleagues at INRA Tours have very recently identified one gene responsible for meat colour variation, for which two linked SNP are responsible for the phenotypic variation.
To explore whether the 3-bp deletion in covR harbored by the HH/LC mutant may contribute to the observed phenotypic variation between the 2 clonal isolates, we expressed the covR/S locus from the HH/LC in the LH/HC variant, as well as the NEM316 GBS genome strain.
Chapter Two discusses in detail aspects of phenotypic variation in tigers further explored in Chapter Three with a molecular assessment of subspecies.
1:50 "Historical explanations of phenotypic variation in the plethodontid salamander, Gyrinophilus porphyriticus.
This is considered the most reliable method to generate species definition because it is not subject to phenotypic variation, mutations, or the presence or absence of metabolic pathways or plasmids.
Deciphering the mechanisms underlying the phenotypic variation among different species is crucial to our understanding of evolution.
By determining the regulatory targets of transcription factors involved in the interplay between the immune response pathways, relating them to known physiological outputs, and computationally mining the genetic variants that may lie at the basis of the observed phenotypic variation, we expect to elucidate the regulatory networks mediating gut immunocompetence and how they are impacted by genomic variation.
2006) reported that a single additively-inherited QTL could explain 32% of the phenotypic variation in total left-shell pigmentation in an experimental population derived from two partially inbred lines.
The objective of the present study was to assess the phenotypic variation of some agro morphological traits within and among two and six- rowed barley breeding lines grown under semi- arid conditions.