/in'treuh gresh"euhn/, n. Genetics.
the introduction of genes from one species into the gene pool of another species, occurring when matings between the two produce fertile hybrids. Also called introgressive hybridization /in'treuh gres"iv/.
[1930-35 (earlier in literal sense of L); < L introgress(us), ptp. of introgredi to go in, enter (intro- INTRO- + -gred-, comb. form of grad(i) to proceed, walk + -tus ptp. suffix, with -dt- > -ss-) + -ION]

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Universalium. 2010.

Look at other dictionaries:

  • Introgression — Introgression, in genetics (particularly plant genetics), is the movement of a gene (gene flow) from one species into the gene pool of another by backcrossing an interspecific hybrid with one of its parents. Introgression is a long term process;… …   Wikipedia

  • Introgression — beschreibt die Bewegung eines Gens, Chromosoms, Chromosomsegments oder Genoms von einer Art auf eine andere, d. h. das Prinzip und das Ergebnis, wie sich durch konventionelle Verdrängungszüchtung Hochleistungszüchtungen erstellen lassen, die ein… …   Deutsch Wikipedia

  • Introgression — In tro*gres sion, n. [L. introgressus, p. p. of introgredi to go in; intro within + gradi to step, go.] The act of going in; entrance. Blount. [1913 Webster] …   The Collaborative International Dictionary of English

  • introgression — index entrance, incursion, inflow, osmosis Burton s Legal Thesaurus. William C. Burton. 2006 …   Law dictionary

  • introgression — [in΄trōgresh′ən] n. [ INTRO + (DI)GRESSION] the infiltration of genes from the gene pool of one species into that of another introgressive [in΄trəgres′iv] adj …   English World dictionary

  • Introgression — Dans le domaine de la génétique (des plantes notamment), le mot introgression (ou « introgressive hybridization » pour les anglophones), désigne la dispersion (naturelle ou dans certaines circonstances plus ou moins controlée) des gènes …   Wikipédia en Français

  • Introgression — introgresija statusas T sritis ekologija ir aplinkotyra apibrėžtis Nedidelių vienos rūšies chromosomų segmentų, lemiančių svarbių požymių pasireiškimą, įterpimas į kitos rūšies genomą. atitikmenys: angl. introgression vok. Introgression, f rus.… …   Ekologijos terminų aiškinamasis žodynas

  • introgression — introgresija statusas T sritis augalininkystė apibrėžtis Kitos rūšies genų įsigijimas tarprūšinės hibridizacijos ir tolesnių grįžtamųjų kryžminimų su vienu iš tėvų metu. atitikmenys: angl. introgression rus. интрогрессия …   Žemės ūkio augalų selekcijos ir sėklininkystės terminų žodynas

  • introgression — noun Etymology: intro + gression (as in regression) Date: 1938 the entry or introduction of a gene from one gene complex into another (as by hybridization) • introgressant adjective or noun • introgressive adjective …   New Collegiate Dictionary

  • introgression — the spread of inherited characters between species by hybridisation …   Dictionary of ichthyology

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