e·pis·ta·sis

(ĭ-pĭs′tə-sĭs)

n. pl. e·pis·ta·ses (-sēz′)

1. An interaction between nonallelic genes in which the genotype at one locus affects the expression of alleles at another locus.

2. A film that forms over the surface of a urine specimen.

3. The suppression of a bodily discharge or secretion.

[Greek, stoppage, from epistanai, to stop, check : ep-, epi-, epi- + histanai, to place; see stā- in Indo-European roots.]

ep′i·stat′ic (ĕp′ĭ-stăt′ĭk) adj.

American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

epistasis

(ɪˈpɪstəsɪs)

1. (Medicine) obsolete scum on the surface of a liquid, esp on an old specimen of urine

2. (Medicine) med the arrest or checking of a bodily discharge, esp bleeding

3. (Genetics) genetics Also called: hypostasis the suppression by a gene of the effect of another gene that is not its allele

[C19: from Greek: a stopping, from ephistanai to stop, from epi- + histanai to put]

epistatic adj

Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

e•pis•ta•sis

(ɪˈpɪs tə sɪs)

n., pl. -ses (-ˌsiz)

a form of interaction between nonallelic genes in which one combination of such genes has a dominant effect over other combinations.

[1915–20; probably after epistatic (1907) (probably epi- + static, taken as meaning “standing above”)]

ep•i•stat•ic (ˌɛp əˈstæt ɪk) adj.

ThesaurusAntonymsRelated WordsSynonymsLegend:

Noun

epistasis - the suppression of a gene by the effect of an unrelated gene

hypostasis

biological process, organic process - a process occurring in living organisms

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References in periodicals archive

The E (extension) gene is responsible for allowing the deposit of pigment into the fur, which means it can overcome the phenotype of another gene in a process called epistasis. The dominant E gene ("E") allows the pigment to be deposited normally into the fur, but its mutated recessive gene ("e") prohibits the depositing of pigment.

Gene Schemes

Keywords: Bread wheat, gene action, epistasis, generation mean analysis.

GENE ACTION APPRAISAL FOR SEED YIELD AND RELATED TRAITS IN BREAD WHEAT

Yes 42 (1901), 2.2 Did not reply -- (2) Previous episodes of epistasis? Yes 453 (1901), 23.8 Did not reply -- (3) Bleeding under the skin?

Prevalence of Bleeding Symptoms among Adolescents and Young Adults in the Capital City of Saudi Arabia

It was found that classical risk alleles for MS do not interact outside the HLA region and that, within HLA, the interaction by epistasis is low.

Alelos y genotipos HLA-DRB1 en pacientes con esclerosis multiple remitente-recurrente del occidente de Mexico: un estudio piloto

This shows average RF values outside the upper and lower resistance limits of the progenitors, suggesting the occurrence of an additional gene involved in the determination of resistance or presence of epistasis. In their study of inheritance of resistance to potyvirus Pepper yellow mosaic virus (PepYMV) in tomato plants, JUHASZ et al.

Genetic parameters of resistance to meloidogyne incognita in melon/Parametros geneticos da resistencia a meloidogyne incognita em meloeiro

More and more studies have shown that epistasis exists in SNPs interaction.

FAACOSE: A Fast Adaptive Ant Colony Optimization Algorithm for Detecting SNP Epistasis