What does introgression mean?

Definitions for introgression
in·tro·gres·sion

This dictionary definitions page includes all the possible meanings, example usage and translations of the word introgression.

Wiktionary

  1. introgressionnoun

    The movement of a gene from one species to another

Samuel Johnson's Dictionary

  1. Introgressionnoun

    Entrance; the act of entering.

    Etymology: introgressio, Latin.

Wikipedia

  1. Introgression

    Introgression, also known as introgressive hybridization, in genetics is the transfer of genetic material from one species into the gene pool of another by the repeated backcrossing of an interspecific hybrid with one of its parent species. Introgression is a long-term process, even when artificial; it may take many hybrid generations before significant backcrossing occurs. This process is distinct from most forms of gene flow in that it occurs between two populations of different species, rather than two populations of the same species. Introgression also differs from simple hybridization. Simple hybridization results in a relatively even mixture; gene and allele frequencies in the first generation will be a uniform mix of two parental species, such as that observed in mules. Introgression, on the other hand, results in a complex, highly variable mixture of genes, and may only involve a minimal percentage of the donor genome.

Webster Dictionary

  1. Introgressionnoun

    the act of going in; entrance

  2. Etymology: [L. introgressus, p. p. of introgredi to go in; intro- within + gradi to step, go.]

Wikidata

  1. Introgression

    Introgression, also known as introgressive hybridization, in genetics is the movement of a gene from one species into the gene pool of another by the repeated backcrossing of an interspecific hybrid with one of its parent species. Purposeful introgression is a long-term process; it may take many hybrid generations before the backcrossing occurs. Introgression is an important source of genetic variation in natural populations and a major cause of speciation in the sympatric mode. It can have important effects on the dynamics of hybrid zones, speciation and adaptive radiation. There is evidence that introgression is a ubiquitous phenomenon in plants, animals, and even humans, in which it may have introduced the microcephalin D allele. Introgression differs from simple hybridization. Introgression results in a complex mixture of parental genes, while simple hybridization results in a more uniform mixture, which in the first generation will be an even mix of two parental species. Natural introgression does not have human direct interference while the exotic introgression is induced intentionally or not.

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Numerology

  1. Chaldean Numerology

    The numerical value of introgression in Chaldean Numerology is: 3

  2. Pythagorean Numerology

    The numerical value of introgression in Pythagorean Numerology is: 2

Popularity rank by frequency of use

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"introgression." Definitions.net. STANDS4 LLC, 2024. Web. 28 Mar. 2024. <https://www.definitions.net/definition/introgression>.

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