EPISTASIS Definition & Meaning

epistasis

[ih-pis-tuh-sis]

Phonetic (Standard)IPA

noun

plural

epistases

Genetics.��a form of interaction between nonallelic genes in which one combination of such genes has a dominant effect over other combinations.
Medicine/Medical.��
1. the stoppage of a secretion or discharge.
2. a scum that forms on a urine specimen upon standing.

epistasis

/ ɪˈpɪstəsɪs, ˌɛpɪˈstætɪk /

noun

obsolete��scum on the surface of a liquid, esp on an old specimen of urine
med the arrest or checking of a bodily discharge, esp bleeding
Also called: hypostasis.��genetics the suppression by a gene of the effect of another gene that is not its allele

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Other 51�Թ� Forms

epistatic adjective

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51�Թ� History and Origins

Origin of epistasis¹

First recorded in 1915–20, epistasis is from the Greek word ��í��ٲ�� stopping, stoppage. See epi-, stasis

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51�Թ� History and Origins

Origin of epistasis¹

C19: from Greek: a stopping, from ephistanai to stop, from _epi- + histanai to put

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Example Sentences

Examples have not been reviewed.

We also present evidence that the targets of natural selection change over time, as epistasis and historical contingency alter the strength of selection on different genes.

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The existence of extensive ALS genome databases will enable the first comprehensive studies of epistasis, characterizing the interactions of numerous genes to perturb the viability of motor neurons.

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Some would argue that epistasis — complex interactions among genetic variants — has long been under-appreciated.

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Dantas views the concept of 'genetic epistasis', in which two or more genes influence one another, as strength in numbers.

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Instead, fitness is following a power-law relationship that is dependent on epistasis and clonal interference.

From

Epist.epistaxis

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