assortative mating


assortative mating
Animal Behav., Psychol.
the reproductive pairing of individuals that have more traits in common than would likely be the case if mating were random (contrasted with disassortative mating). Cf. panmixia.
[1895-1900]

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      in human genetics, a statement of the frequency at which individuals mate with persons of similar phenotype or, conversely, with persons of different phenotype (see phenotype). Assortative mating refers to a statement about the degree of phenotypic randomness of mating patterns in human beings; in a more specific sense the term can mean the selection of a mate on the basis of phenotype or with phenotype as one of the major criteria. For example, in the United States most people choose not to marry outside their own racial groups; this is an instance in which assortative mating is not random, in the first sense of the word, and in which assortative mating is in practice, in the second sense of the word. Positive assortative mating, or homogamy, exists when people choose to marry persons similar to themselves (e.g., when white marries white, tall person marries tall person); this type of selection is very common. Negative assortative mating is the opposite case, when people avoid marrying persons similar to themselves.

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Universalium. 2010.

Look at other dictionaries:

  • Assortative mating — (also called assortative pairing), and the related concept Disassortative mating, is the phenomenon where a sexually reproducing organism chooses to mate with individuals that are similar[1][2] (positive assortative mating) or dissimilar… …   Wikipedia

  • assortative mating — assortative mating. См. ассортативное скрещивание. (Источник: «Англо русский толковый словарь генетических терминов». Арефьев В.А., Лисовенко Л.А., Москва: Изд во ВНИРО, 1995 г.) …   Молекулярная биология и генетика. Толковый словарь.

  • assortative mating — noun Between males and females of a species, the mutual attraction or selection, for reproductive purposes, of individuals with similar characteristics. Underlying all distributions of characters in assortative matings are certain elementary… …   Wiktionary

  • assortative mating — assortive mating nonrandom mating in which choice of a mate is influenced by phenotype. Positive assortative mating occurs when phenotypically similar mates are chosen, e.g., tall men and tall women; negative assortative mating occurs when… …   Medical dictionary

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  • assortative mating — Mating in which the partners are chosen on the basis of phenotypic similarity …   Glossary of Biotechnology

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  • Mating — Dragonflies mating Tortoises mating …   Wikipedia

  • assortative — adj. assorting. Phrases and idioms: assortative mating Biol. selective mating based on the similarity of the partners characteristics etc …   Useful english dictionary

  • mating — noun the act of pairing a male and female for reproductive purposes (Freq. 2) the casual couplings of adolescents the mating of some species occurs only in the spring • Syn: ↑coupling, ↑pairing, ↑conjugation, ↑union, ↑sexual …   Useful english dictionary


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