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introgression

[in-truh-gresh-uh n] /ˌɪn trəˈgrɛʃ ən/
noun, Genetics.
1.
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-truh-gres-iv] /ˌɪn trəˈgrɛs ɪv/ (Show IPA)
.
Origin
1930-1935
1930-35 (earlier in literal sense of L); < Latin intrōgress(us), past participle of intrōgredī to go in, enter (intrō- intro- + -gred-, combining form of grad(ī) to proceed, walk + -tus past participle suffix, with -dt- > -ss-) + -ion
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Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for introgressive hybridization

introgression

/ˌɪntrəˈɡrɛʃən/
noun
1.
the introduction of genes from the gene pool of one species into that of another during hybridization
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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